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CHROMTECH :  Specialists in Chromatography
- Fluid Transfer Products : & for All Your Laboratory Needs !
- Importers & Distributors in AUSTRALIA

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SRI LIT Update-2022

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Innovations
Preconfigured SYS
H2 Gens
GC Detectors
GC Injectors

Quick Start Instructions PeakSimple OP S’ware
Cobra Auto-Injectors
MudLogger GCs

Valves
GC Accessories
Papers AppNotes
Maintenance

Cannabis & Hemp
Approvals Certs Warranty
Schematics

SRI Instruments Documentation > GC and data system literature > manual sections, product descriptions, specifications, application notes & papers.

Download SRI documentation (PDF files) PDF2 Download
Some users have reported difficulty in downloading and/or viewing the documents on this page. You will need the Adobe Reader "XI" - 11.0.08 or later
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                                         ( > Our Chromtech Files mainly ! )

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GC Innovations Product Descriptions (Color)

PDF2

Miniature hydrogen generator

(1.5MB) This sales flyer shows the minature H2-100mini hydrogen generator

Download

310MM Cannabis and Hemp Testing GC Sales Flyer

(361.8KB) This one page sales flyer highlights the main features of the 310MM Cannabis and Hemp Testing GC.

Download

2022 Pricelist in pdf format (263.0KB)

Download

310MM Edibles Cannabis and Hemp Gas Chromatograph

(7.7MB) This document explains how the 310MM Edibles Cannabis and Hemp Gas Chromatograph functions to make testing cannabinoids in MCT/Olive oils,
as well as flower, simpler and less time consuming.

Download

2022 Pricelist in Excel xls format in a zip file (66.8KB)

Download

Greenhouse Gas GC 456KB (456KB)

Brief overview of the Greenhouse Gas GC

Download

10 and 20 position GreenhouseGas vial autosamplers

(6.8MB) Instructions for the 10 and 20 position gas vial autosamplers used with Greenhouse Gas samples

Download

EPA Method 25 ( oxidize/reduce ) GC configuration

(11.0MB) This GC converts all the hydrocarbons in the sample ( plus CO and CO2 )
to methane for an accurate carbon count regardless of the hydrocarbon identity.
 It is a preferred way of measuring air emissions

Download

Ultra Compact Model 110 GC for chlorinated VOCs at ppb level

(549.0KB) This document showcases SRI's smallest GC which in this case is configured to detect chlorinated VOCs at the ppb level.

Download

EPA Method 16A GC configuration ( Total Sulfur as SO2 )

(400.2KB) This doc explains the Method 16A GC configuration for measuring total sulfur by converting it to SO2 and then measuring the SO2 with a FPD detector.

Download

Environmental Testing Solutions

(781KB) GCs for environmental testing (e.g., BTEX+)

Download

Capillary FID GC 641.6KB)

Low-cost GC perfect for hydrocarbon analysis

Download

Model 88 miniature gasless Methane/non-Methane GC

(1.2MB) This document shows the Model 88 miniature gasless GC for methane
/non-Methane testing  It has a built in hydrogen generator and air compressor
> so no gas is needed !

Download

Model 310 Educational GC Family

(1.5MB) Overview of our educational FID and TCD GCs, with "Gas-less" options.

Download

Mudlogging GC

(620.6KB) A portable, rugged, low-cost GC for mudlogging. Available in rack mount chassis.

Download

Multiple Gas Analyzer #1 GC

(453.7KB) Brief overview of the MG #1 configuration. For more information, read the document on the MG #1 GC configuration in the Preconfigured GC Systems section. 

Download

Sulfur in Natural Gas GC
(94.0KB) GC used to detect sulfur in natural gas.
 

Download

 

 

Model 30 TCD Mini GC
 A “Toy” for school kids link available if U R really serious but then just might be suitable for budding phD “Rocket Scientists”  starting their “learning curve”
Beyond “even” my “pay scale !“ Smiley-s
(467.4KB) Very low cost, highly portable, mini GC with a packed column (MS-5A) and a TCD detector . . . All for just ~AUD6000 > to YOU !
BUT Be-A-WARE ! of the limitations ! YOU’ll (perhaps) learn from THE experience ! > the hard way ! . . . if need be ?

ASK for
that link
 ?
mini GC

Preconfigured GC Systems ( > “real life” systems )  .   .   . “Trace Gas Analysis s is an “art form “

Ethylene Oxide Monitoring GC System (920.9KB)

Download

Oxygenates and Aromatics in Gasoline
(729.6KB) This document describes a GC configuration which measures the oxygenates ( methanol, ethanol etc ) in gasoline similar to ASTM 4815, and also measures Aromatics in gasoline ( Benzene, Toluene etc ) similar to ASTM 3606
 but simplified due to SRI's unique ASD ( Aromatic Selective Detector ).

Download

ASTM 4815 Oxygenates in Gasoline GC operation
(3.4MB) This document explains the operation of the SRI GC configured for ASTM 4815.

Download

Environmental/BTEX GCs (442.0KB)

Download

Method 16B GC (2.6MB)

Download

Educational TCD GC (166.2KB)

Download

Multiple Gas Analyzer #1 GC (MG#1) (424.9KB)

Download

Multiple Gas Analyzer #2 GC (MG#2) (674.2KB)

Download

Multiple Gas Analyzer #3 GC (MG#3) (2.2MB)

Download

Multiple Gas Analyzer #3 + Sulfur GC (1.2MB)

Download

MultipleGas#5 operating instructions

(8.2MB) This document was updated October 2022 to reflect recent improvements
to the MG5 GC configuration

Download

Typical MG5 chromatograms using H2 and Argon carrier gas

(1.6MB) These chromatograms compare the peaks using H2
also Argon carrier gas.

Download

MultipleGas#5 Reproducibility Test

(1.1MB) These chromatogram show the reproducibility of methane and CO
at 1% each on the MG5 GC

Download

Hydrogen Generators

H2-100 mini hydrogen generator flyer February 2022

(1.5MB) This flyer shows the miniature version of the H2-100 hydrogen generator.

Download

H2-100mini operation manual

(9.5MB) This is the manul for the H2-100mini hydrogen generator

Download

H2-100 Hydrogen Generator Manual

(9.6MB) This document is the manual for the H2-100 Hydrogen Generator

Download

Quick Start instructions

Model 333 Data System Quick Start (947KB)

Download

Model 302 Data System Quick Start (795KB)

Download

GC Quick Start (856KB)

Download

Model 30 Mini GC Quick Start (1.8MB)

Download

Model 203 Data System Quick Start (449KB)

Download

Model 202 Data System Quick Start (483KB))

Download

Sulfur in Natural Gas GC Quick Start (1.1MB)

Download

GC Detectors

TCD - Thermal Conductivity Detector part 1

(320.4KB) Function and applications of the Thermal Conductivity Detector (TCD)

Download

TCD - Thermal Conductivity Detector part 2

(234.9KB) Troubleshooting for the Thermal Conductivity Detector (TCD)

Download

FID - Flame Ionization Detector (1.1MB)

Download

Large Capacity Methanizer Installation

(1.2MB)This documents describes the replacement of the 1/8 inch in-jet methanizer with the large capacity 1/4" methanizer

Download

PID - Photo Ionization Detector (321.8KB)

Download

PID LampData Sheet

(339.7KB) The data sheet from one of the PID lamp manufacturers is a useful reference.

Download

FPD - Flame Photometric Detector (248.9KB)

Download

HID - Helium Ionization Detector (248.9KB)

Download

RGD - Reduction Gas Detector (390.5KB)

Download

RGD Operation (893.8KB)

Download

NPD - Nitrogen/Phosphorus Detector (436.8KB)

Download

NPD Adjustment (346.1KB)

Instructions of adjusting the NPD bead voltage for optimal sensitivity/longevity of the bead

Download

NPD to FID Detector Conversion

(3.4MB) Instructions on converting an NPD to an FID

Download

NPD whitepaper from DET

(218.4KB) This publication from DET ( manufacturer of the NPD bead )
is very informative.

Download

TID - Thermionic Ionization Detector (5.1MB)

Download

ECD - Electron Capture Detector (334.0KB)

Download

ECD Detector Removal and Replacement

(1.4MB) Important information on how to remove and replace the ECD

Download

ECD Safety Data Sheet 11-27-2017

(151.6KB) This is the safety data sheet document from NRD for the SRI ECD detector.

Download

UN 1210 Shipping Regulations for ECD detector

(965.2KB) These are the regulations which cover the ECD detector. 

Download

Single Filament TCD (636.2KB)

Download

DELCD - Dry Electrolytic Conductivity Detector (302.2KB)

Download

CCD - Catalytic Combustion Detector (814.4KB)

Download

ASD - Aromatic Selective Detector (1.1MB)

Download

GC Injectors

Column Installation (on column) (979.4KB)

Download

Column Installation (heated injector) (1,012.3KB)

Download

TOGA Permeation Tube Operation (847.5KB)

Download

Thermal Desorber (419.7KB)

Download

NPD Equipment Summary (218.4KB)

Download

Purge and Trap part 1 (217.8KB)

Download

Purge and Trap part 2 (302.9KB)

Download

Heated Static Headspace Injector (221.3KB)

Download

PTV - Programmable Temperature Vaporization (748.5KB)

Download

On-Column PTV Injector (OCPTV) (259.4KB)

Download

SPME Injection (198.7KB)

Download

8640 Integrated Autosampler (306.8KB)

Download

5030 Autosampler Retrofit (49.3KB)

Download

5030 Autosampler Relay Board Installation (119.8KB

Valves

MultipleGas#5 Valve diagram

(226.8KB) This diagram is what is printed on the MG5 valve oven's lid

Download

Multiple Gas Analyzer #3 Valve Diagram, with on-column injection modification (139.0KB)

Download

Valve Diagram Collection (6.3MB)

This document contains a selection of 10 port gas sampling valve diagrams, plus one and dual valve blank diagrams so you can configure your own valve plumbing.  Also included is a table of tube volumes for different ID tubing which is helpful when calculating how much tubing to cut when making or replacing the loop.

Download

Gas Sampling Valve Diagram, Single (46.2KB)

Download

Gas Sampling Valve Diagram, Dual (91.9KB)

Download

Gas Sampling Valve Diagram, Triple (104.5KB)

Download

Valco 22 Port 10 Stream Selector Valve (720.0KB)

Download

Valco Actuator Manual (898.0KB)

Manufacturer's manual of the Valco Actuator

Download

Valco Actuator Connections (208.5KB)

Download

Gas Sampling Valve Installation, 8610C (9.4MB)

Download

Replacing The Circuit Board Inside Electric Valve Actuator (913.1KB)

Download

Installation of 24volt DC Valco Valve Actuators (928.7KB)

This document explains some of the difference in the mounting of the newer 24volt actuator compared to the older style actuators.

Download

Valco Universal Actuator Manual 2-27-2019

(405.1KB) Thiks is Valco's manual for the new stepper motor type valve actuators
we use in SRI GCs for 2 and 10 position valves.

Download

Supplemental power supply for AFP valves

(831.4KB) This document describes the installation of a supplemental power supply for AFP valves.

Download

ASD valve actuator manual

(1.6MB) his document from ASD describes the operation of the ASD electric valve actuator.

Download

Gas Sampling Valve Types May 2019

(836.0KB) This document shows the various different gas sampling valves and actuators used in SRI GCs.

Download

AFP Valve/Actuator Diagram August 2019

(1.6MB)

This document shows the current AFP valve used in some SRI GCs

Download

AFP Actuator Board types and wire connections January 2022

(3.4MB) ard revisions and wire connections for the AFP valves used by SRI

Download

Replacing the circuit board in AFP valves

(1.5MB) This document shows how to replace the circuit board in AFP gas sampling valves

Download

AFP Valve Head Specs

(822.7KB) This doc shows the AFP valve head with temperature limits, materials
of construction etc.

Download

Greenhouse Gas GC 10 vial Autosampler

(3.9MB) This document explains how to insall the 10 vial autosampler

Download

Silicone Loop Tubing for On-line liquid sampling

(3.3MB) This document explains how to install and use a silicone tube loop
which is useful for measuing many molecules in a water matrix.

Download

Cobra 120 Vial Liquid Autosampler

COBRA Autosampler Manual

(502.7KB) Manufacturer's manual on the COBRA Autosampler

Download

COBRA 8610V Operation (2.8MB)

Download

COBRA 8610C Mounting (2.8MB)

Download

Cobra-HTA Liquid Autosampler interface board (158.6KB)

This drawing shows the jumper connections to convert the Cobra interface board to HTA.

Download

AS120 Liquid Autosampler control program and Manual

(112.2MB) This zip file contains theWinodws 10 program to control
the AS120 120 vial liquid autosampler and the operation manual.
Its current as of 8-25-2021

Download

Mudlogging GCs

Fast Mudlogging Kit Installation (1.3MB)

Download

Mudlogger Data Logger Mode (445.1KB)

Download

Mudlogging GC Total Gas Calibration (1.6MB)

Download

Mass Flow Controller Option for Mudlogging GC System(652.3KB)

Download

One-Minute Mudlogger Analysis (58.8KB)

Download

Operating Mudlogger GC With Hydrogen Generator (126.2KB)

Download

Mudlogger Auto-ranging Feature (1.1MB)

Download

Mudlogger Auto-ranging Feature June 2016 (1.1MB)

Download

Mud-logger GC (758.4KB)

Download

Mudlogger Operation (3.0MB)

Download

PeakSimple Data Systems and Software

PeakSimple Model 302 6 channel data system changes August 2018

(319.5KB) This document shows the new box for the Model 302 data system

Download

4-20 Milliamp output from PeakSimple

(1.9MB) This dicument describes how to implement the 4-20 milliamp output.

Download

Self Validation Files

(12.2KB) These files allow the user to self-validate PeakSimple data systems

Download

PeakSimple Debug Mode (186.3KB)

Download

Basic PeakSimple Features (1.3MB)

Download

Model 302 USB Driver Installation (408.7KB)

Download

Model 333 1 Ch. USB Data System Quick Start (946.4KB)

Download

Model 302 6 Ch. USB Data System Quick Start (794.2KB)

Download

Model 302 Data System Manual (822.1KB)

Download

Model 203 1 Ch. Serial Data System Quick Start (448.8KB)

Download

Model 202 4 Ch. Serial Data System Quick Start (482.9KB)

Download

Advanced PeakSimple Features (1.4MB)

Download

Utilizing Multiple Instances in PeakSimple (292.1KB)

Download

New End of Run E-Mail Feature (193.4KB)

Download

User Calculations (55.9KB)

This document explains how to use the user calculations feature
in Peaksimple.

Download

Enabling Pressure Programming on GC (578.6KB)

Download

333 Reinitializations Feb 2019

(570.9KB) This doc describes how to modify the 333 A/D board to reduce the number of spontaneous re-initializations.

Download

PeakSimple Update Tips (98.6KB)

Download

Python control of PeakSimple

(879.7KB) The zip file details how to control PeakSimple from Python software.

Download

PeakSimple Control Code Examples (27.2KB)

Download

Wits Output from PeakSimple (3.5MB)

This document explains how to get PeakSimple to output data to a WITS receiver.

Download

PeakSimple Calibration (762.8KB)

Download

PeakSimple Remote Control via External Program (162.4KB)

Download

Internal Standard Calibration, in v. 3.51 (726.9KB)

Download

File Types used by PeakSimple (47.8KB)

Download

Using PeakSimple Events (Event Tables) (306.7KB)

Download

Using PeakSimple's Autosampler Queue (613.3KB)

Download

USB to Serial Adapter (582.2KB)

Download

Communication Loss (New DLL) pt.1 (527.4KB)

Download

Communication Loss pt. 2 (581.9KB)

Download

USB Port Grounding (289.4KB)

Download

Validation (934.3KB)

Download

Windows 10 Driver Troubleshooting (58.0KB)

Download

User Calculations (55.9KB)

This document explains how to use the user calculations feature
in Peaksimple

Download

PeakSimple drivers for various operating systems

(135.0KB) This doc from Lawson Labs explains which dll,sys, cat and inf files
are needed for the various Windows operating systems

Download

Copying Results Data from PeakSimple to Excel

(311.9KB) This document describes the proceedure for copying results data
 from PeakSimple to Excel/Word or other Windows programs.

Download

GC Accessories

Methanizer (48.9K
B)
Stand-Alone Methanizer Accessory (155.8KB)

Download

10 Position Greenhouse Gas GC Autosampler (1.3MB)

Download

Bandolero Gas Autosampler (424.0KB)

Download

Bandolero Interface to SRI GC diagram

(3.3MB) This shows the connection from the GC interface board to control
the Bandolero vial asutosampler.

Download

Bandolero Interface to SRI 8610C GC

(1.9MB) This document shows the electrical connections between a
Bandolero autosampler and the SRI GC

Download

Liquid Autosampler Operation (2.8MB)

Download

Automatic Calibration System (442.7KB)

Download

Vaporizer for LPG (766.7KB)

Download

Sample Stream Dryer (565.0KB)

Download

H2-100 Hydrogen Generator (2.2MB)

Download

Gas Tight Syringe kit January 2018

(153.9KB) This document shows the type of gas tight syringes commonly used
with SRI GCs

Download

Papers, Applications Notes, and Forms

BioDiesel GC Operation (2.0MB)

Download

BioDiesel GC Operation v.3 (1.3MB)

Download

Method 16B Analysis (1.5MB)

Download

Multiple Gas Analyzer #3 Gas Detection Limits (453.4KB)

Download

CTR-1 Column Equivalent (1.8MB)

Download

FAME Analysis (57.0KB)

Download

PCB in Transformer Oil GC Operation (3.1MB)

Download

Thermal Desorber Instructions (979.1KB)

Download

Formaldehyde in Air by HPLC UV with the SRI Model 210D (145.3KB)

Download

Gel Permeation Chromatography (74.2KB)

Download

Hydrogen Detection Limits (68.9KB)

Download

Dissolved Gas/Transformer Oil Gas Analysis (1.8MB)

Download

Stationary Phases (416.6KB)

Download

Low Level Ethylene Measurement In Air (86.2KB)

Download

Sulfur Trapping (2.0MB)

Download

A Tool for Selecting an Adsorbent for Thermal Desorption Applications (by Supelco, on their website) (1.8MB)

Download

Water Analysis Using The HID Detector (65.7KB)

Download

FID Methane Detection Limit (90.2KB)

Download

TOGA GC Operation (Membrane) (847.5KB)

Download

FAMES Chromatograms (2.0MB)

Download

DET Chemical Detection (5.1MB)

Download

Statistics in the Laboratory: The Limit of Detection (33.1KB)

Click here to read this article. (This link will take you off of Srigc.com)

Download

Oxygenate Selective Detection for GC (7.0MB)

Download

"Zero" air vs. Room Air on FID noise

(250.5KB) This document compares the difference between " zero" grade cylinder air and room air on FID noise and sensitivity.

Download

Retentiion time stability using air as carrier gas

(219.7KB) This power point from a customer shows how stable the retention times
are using an SRI GC configured to use air as a carrier gas and a DELCD detector.

Download

Useful links

(18.8KB) This is a useful GC troubleshooing guide.
https://phenomenex.blob.core.windows.net/documents/b043f709-428f-4697-9791-7b0f2baf9b77.pdf

Download

1ppb BTEX and below using SRI PID GC with air carrier

(31.4KB) This link takes you to a paper by an SRI customer testing a miniature SRI PID pre-concentrator GC that runs on ambient air to measure 1ppb and below in the field with no carrier gas cylinders required.  This makes it a lot easier to deploy. 
The user also uses a battery for power.
 https://www.preprints.org/manuscript/202102.0317/v1

Download

Maintenance

Packing the GC for Shipment977.7KB)

This document describes how to properly pack your Gas Chromatograph for shipment

Download

Replacing the Op-Amp Chip in Your GC (122.1KB)

Download

FID Collector Electrode Replacement (457.5KB)

Download

FID Ignitor Installation (444.4KB)

Download

Replacing FID Ignitor (668.4KB)

Download

Packing the RGD Reaction Tube (326.2KB)

Download

TOGA GC Permeation Tube Replacement (454.0KB)

Download

Valco Actuator Connections208.5KB) Pictures of the connections
for the Valco Valve actuator

Download

Greenhouse Gas GC Valve Diagram/Event Table (30.9KB)

Download

Model 333 Relay Kit Installation (1.7MB)

Download

Vacuum Pump Interface Self-Installation (3.1MB)

Download

Air Compressor Filter Replacement (866.7KB)

Download

TID Bead Replacement (1.4MB)

Download

Heat Board Troubleshooting
(1.6MB) This document explains how to troubleshoot your heat board when the Thermocouple out of Range Alarm trips

Download

Heaters (435.6KB)

Download

Ferrules (2.1MB) see also direct from Chromtech

Download

Cutting Tubing For SRI GCs (452.0KB)

Download

Flow Measurement (560.9KB)

Download

Complete Electronics Schematics Set(2015) (45.3MB)

Download

Electronics Schematics (24.1MB)

Download

Connecting Gas Cylinders (891.4KB)

Download

Cooling Blower Installation (956.2KB)

Download

EPC Maintenance (2.4MB)

Download

Heater Element Replacement 8610B (402.5KB)

Download

Service Note 1-1 (302.6KB)

Download

Oven Motor (229.3KB)

Download

TCD Resistor Replacement (1.5MB)

Download

Model 333 Chip Replacement (1.3MB)

Download

Chassis Fan Replacement (244.1KB)

Download

Relay Board Installation (3.1MB)

Download

Air Compressor Installation (2.8MB)

Download

Amp Board Capacitor (1.4MB)

Download

Leak Check (382.8KB)

Download

Losing Communication Troubleshooting Guide (527.4KB)

Download

A to D board Capacitor Installation (5.8MB)

Download

TCD Filament Protect Chip Replacement Jan 2016 (144.5KB)

Download

Model 510 Methanizer Schematic

(58.4KB) This schematic is for the Model 510 Methanizer built after April 2018.

Download

Supplemental Power Supply for Gas Sampling Valves Jan 2019

(831.4KB) This document describes the installation of a supplemental
power supply kit for gas sampling valves which are acting erratically

Download

Replacing the Polishing Filter

(199.9KB) This document shows how to replace the polishing filter on 8610C GCs.

Download

333 Reintialization resistor update

(570.8KB) This document shows how to change the two resistors on the 333 A/D
board in order to reduce the incidence of re-initializations ( communication losses ).

Download

Multiple Gas#5 GC Column Bake-out Procedure

(1.4MB) This document explains how to bake-out the columns in the SRI Multiple Gas#5 GC configuration.

Download

Temperature limits of various GC column stationary phases

(1.1MB) Courtesy of Restek, a chart showing the upper temperature limits of many
GC stationary phases

Download

Column Rinsing to remove Contaminants

(1.8MB) This document shows how to solvent rinse a column using the Model 310MM GC.

Download

8610C Manual Part 1

(10.6MB) Introductory matter, GC Quick Start, 8610C GC Chassis, 310 GC Chassis, and 110 Stand-Alone Detector Chassis.

Download

8610C Manual Part 2

(13.6MB) GC Installation and Preconfigured GC Systems.

Download

8610C Manual Part 3

(14.2MB) GC Detectors.

Download

8610C Manual Part 4

(14.5MB) Detectors (cont.), Methanizer, and Syringe Injectors.

Download

8610C Manual Part 5

(10.4MB) Injection valves, purge and trap concentration, and heated static headspace

Download

8610C Manual Part 6

(13.4MB) Autosamplers, PeakSimple Tutorials, and PeakSimple Software.

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8610C Manual Part 7

(10.3MB) PeakSimple Software (continued).

Download

8610C Manual Part 8

(14.0MB) PeakSimple Data Systems, Hydrogen Generato, and Maintenance 

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8610C Manual Part 9

(15.2MB)Schematics.

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8610C Manual Part 10

(8.5MB) Replacement Parts, Application Notes, and COBRA Vertical Autosampler Manual.

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Papers, Applications Notes, and Forms

BioDiesel GC Operation (2.0MB)

Download

BioDiesel GC Operation v.3 (1.3MB)

Download

Method 16B Analysis (1.5MB)

Download

Multiple Gas Analyzer #3 Gas Detection Limits (453.4KB)

Download

CTR-1 Column Equivalent (1.8MB)

Download

FAME Analysis (57.0KB)

Download

PCB in Transformer Oil GC Operation (3.1MB)

Download

Thermal Desorber Instructions (979.1KB)

Download

Formaldehyde in Air by HPLC UV with the SRI Model 210D (145.3KB)

Download

Gel Permeation Chromatography (74.2KB)

Download

Hydrogen Detection Limits (68.9KB)

Download

Dissolved Gas/Transformer Oil Gas Analysis (1.8MB)

Download

Stationary Phases (416.6KB)

Download

Low Level Ethylene Measurement In Air (86.2KB)

Download

Sulfur Trapping (2.0MB)

Download

A Tool for Selecting an Adsorbent for Thermal Desorption Applications (by Supelco, on their website) (1.8MB)

Download

Water Analysis Using The HID Detector (65.7KB)

Download

FID Methane Detection Limit (90.2KB)

Download

TOGA GC Operation (Membrane) (847.5KB)

Download

FAMES Chromatograms (2.0MB)

Download

DET Chemical Detection (5.1MB)

Download

Statistics in the Laboratory: The Limit of Detection (33.1KB)
Click here to read this article. (This link will take you off of SRIGC.com)

Download

Oxygenate Selective Detection for GC (7.0MB)

Download

"Zero" air vs. Room Air on FID noise

(250.5KB) This document compares the difference between "zero" grade
cylinder air and room air on FID noise and sensitivity.

Download

Retention time stability using air as carrier gas

(219.7KB) This power point from a customer shows how stable the retention times
are using an SRI GC configured to use air as a carrier gas and a DELCD detector.

Download

Useful links

(18.8KB) This is a useful GC troubleshooing guide.
 https://phenomenex.blob.core.windows.net/documents/b043f709-428f-4697-9791-7b0f2baf9b77.pdf

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1ppb BTEX and below using SRI PID GC with air carrier

(31.4KB) This link takes you to a paper by an SRI customer testing a miniature SRI PID pre-concentrator GC that runs on ambient air to measure 1ppb and below in the field with no carrier gas cylinders required.  This makes it a lot easier to deploy.
 The user also uses a battery for power.
 https://www.preprints.org/manuscript/202102.0317/v1

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Chromatogram Library Chrom-Library

  • Hydrogen in Natural Gas using Nitrogen carrier gas
  • (1.0MB) These chromatograms show 10ppm up detection of hydrogen.

Download

  • Formaldehyde detection using HID detector
    (1.4MB) Formaldehyde does not respond well on FID or PID detectors, and sensitivity is limited on TCD.  HID provide an alternative way to measure formadehyde
    in the low ppm range.

Download

  • Formic Acid using HID detector
    (1.3MB) Formic Acid does not respond well on FID.This chromatogram shows formic acid using a HID detector and 30meter MXT-wax column

Download

  • Propane/Propylene separation on 12foot Haysep D column
    (227.2KB) This chromatogram shows the separation at 500ppm each.

Download

  • 1ppb Isoprene, a-Pinene and Limonene in air
    (3.6MB) This chromatogram shows a dual column system to measure both the
    very volatile isoprene and the less volatile a-Pinene and Limonene ( terpenes ) in air. 
    An Alumina PLOT column wa used to separate isoprene from the many possible interfering molecules. A plolar column did double duty as both a pre-column
    to protect the Alumina and as a separation column to handle the terpenes.

Download

  • Ethylene Oxide in air from .5ppm to 50ppm
    (793.8KB)These chromatograms show ETO detection limits below .5ppm

Download

  • H2S and NH3 using 30RTX U-Bond column and PID detector
    (589.5KB) This chromatogram shows 100ppm levels of H2S and NH3 on a 30 meter
    U-Bond column and PID detector.

Download

  • PPM levels of Ammonia using a PID detector (689.1KB)
    This chromatogram series shows ammonia ( NH3 ) measurement at levels from 10-1000ppm using a PID detector anda 30 meter RTX U-plot column

Download

  • Ammonia separation on 30 meter RTX U-plot column

    (2.9MB) These chromatograms show Ammonia ( NH3 ) seprated on the 30 meter
    RTX U-plot column.

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  • Ammonia ( NH3 ) on 1meter Chrom103 column and TCD detector
    (1.0MB) This series of chromatograms shows NH3 vapor injections on a 1meter
    Chrom 103 packed column in teflon tubing.

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  • Ammonia Detection as a continous Stream using the PID detector
    (177.1KB) This chromatogram shows that the PID detector can measure Ammonia
     in a continuous stream ( 40ml/minute ) down to 10ppm levels. 

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  • Ammonia detection as a continuous stream using the PID
    (203.0KB) This chromatogram shows the repsonse of the PID to 200ppm NH3 fed
     to the PID detector as a continuous stream rather than injected into a column,

Download

  • Ammonia detection using TCD and silicone membrane
    (1.9MB) This chromatogram shows detection of Ammonia in water using a TCD detector, Haysep P column and a silicone tube used as a membrane sampling probe.

Download

  • MultipleGas#5 Typical chromatograms using H2 and Argon carrier
    (1.6MB) These chromatograms compare the MG5 peaks on H2 and also on Argon carrier Gas.

Download

  • MG5 chromatogram plus methanol and ethanol
    (638.9KB) This chromatogram shows a mix of hydrocarbons plus methanol and ethanol separated from the late eluting CO2 peak.

Download

  • MultipleGas#5 ReproducibilityTest
    (1.1MB) This series of chromatograms and data show the Reproducibiliy of methane and CO on the Multiple Gas #5 GC

Download

  • MultipleGas#5 GC to GC uniformity (1.3MB)
    These 3 chromatograms show the same sample run on 3 different
    MG5 GCs for sensitivty comparison.

Download

  • Typical MG5 TCD sensitivity using helium and Argon carrier gas
    (526.0KB) These chromatograms shows the typical TCD sensitivity of the
    Multipl Gas #5 GC configuration

Download

  • 1% and 100% CO2 on MultipleGas#5 GC
    (946.2KB) These chromatograms compare the peak shape of CO2 at 1% and 100% on the MG5 GC

Download

  • MultipleGas#1 typical chromatogram
    (509.9KB) This doc shows a typical chromatogram of 1% gases on the
     Multiple Gas #1 GC configuration with TCD and FIDmethanizer detectors.

Download

  • H2, O2, N2, CH4,CO on 6' MS5A column and TCD detector
    (261.4KB) This cheomatogram was obtained with argon carrier gas.

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  • CO2 on 1 meter MS5A column
    (222.1KB) This chromatograms shows CO2 eluting from a 1 meter MoleSeive 5A column.  It is not well known that this is possible, and may be useful for some applications.

Download

  • Water elution on a 3' MS5A column (390.8KB)
    It is well known that water is strongly retained on a moleseive column
    This chromatogram shows what water looks like as it elutes at 300C.

Download

  • MS5A column before and after Bakeout
    (539.8KB) This chromatogram compares the dramatic difference is separation between methane and CO, before and after a weekend bakeout at 270C.

Download

  • CO2 reproducibility on MS5A column
    (860.8KB)  This series of 3 injections demonstrates a %RSD of .6% for CO2
    injected on a 6' MS5A column.

Download

  • 1% Gas Mixture using SRI MultipleGas#1GC HID/TCD (534.4KB)
    This chromatogram shows H2, O2, N2, CH4, CO, C2H6, CO2, C2H4
    and C2H2 on the SRI Multiple Gas#1 GC configuration with HID and TCD detectors
    in series.

Download

  • Natural Gas using TCD(1.1MB)
    This chromatogram show natural gas standard run the the Natgas GC configuration using Hydrogen carrier gas
    Data is shown for both 1 meter and 2 meter Haysep D columns in series with a 30meter MXT1 1micron film capillary column

Download

  • Using Room air as carrier gas with TCD detector
    (731.0KB) These chromatograms show room air and human breath on a SRI Educational TCD GC using hydrogen and then room air as carrier gas.
    The room air carrier is supplied by a built-in air compressor making this unit
    operate with no gas cyclinders.

Download

Hydrogen Plus CO,CO2, CH4 C2H4 and C2H6
(525.9KB) This chromatogram shows common gases separated
on a 12 foot Haysep D column using the SRI MG3 GC
.

Download

  • Helium at ambient levels ( 5.2ppm ) (2.2MB)
    This series of chromatograms shows helium in outdoor air measured with aTCD detector and both Argon and Air carrier gas.

Download

  • Detection of N2@25ppm
    (954.9KB) This chromatogram shows detection of 25ppm N2 using a TCD detector
    and hydrogen carrier gas.

Download

  • Argon-Oxygen separation using a 24 foot MoleSieve 5A column (1.3MB)
     This series of chromatograms shows room air separated on a 24 foot long Molesieve 5A column at various temperatures including in a dorm fridge at 5C.

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  • Krypton in Natural Gas

    (478.6KB) This chromatogram shows krypton measured in Natural Gas ( 80% methane ). Krypton is difficult to separate from methane on nearly all columns. A TCD detector was used with methane carrier gas which made the detector blind to th
    e methane in the natural gas sample, so the krypton could then be detected.

Download

  • 1000ppm Krypton in Natural Gas
    (267.7KB) This chromatogram shows Krypton in Natural Gas using methane as the carrier.  It was difficult to separate krypton from the methane peak in natural gas,
    but by using methane as the carrier gas we were able to measure the krypton easily.

Download

  • Water and Alcohols on Haysep D column
    (207.9KB) This chromatograms shows air, water, methanol, ethanol, and isopropanol on a 6 foot Haysep D column.
    Oven temperature was 150C isothermal.

Download

  • Residual Solvents on Haysep R/D column
    (1.1MB) SRI packs a special 3 foot ( 1 meter ) column that is half Haysep R and half Haysep D.  This column separates ethanol from isobutane, methanol from propane
    and acetone from pentanes.Other column types have trouble with these separations.

Download

  • C1-C7 Carboxylic Acids on a 30 meter MXT-wax 1 micron
    (217.4KB) This chromatogram shows the C1-C8 Carboxylic Acids ( VFA ) injected
     on a 30 meter MXT-Wax 1 micron film column.

Download

  • 37 Fatty Acids on 100 meter RT-2560 .25mm ID column
    (461.6KB) This very long narrow bore column can resolve most fatty acids using 30:1 split injection.

Download

  • Glycerol ( Glycerine ) on 30MXT502 column
    (725.9KB) This series of chromatograms shows 3% Glycerol ( same as glycerine ) injected on the 310MM GC using a 30 Meter MXT502.2 1micron film column. 
     The good new is that the glycerol elutes well away from the cannabinoid peaks
    so it does not interfere.

Download

  • Gasless Educational CCD sensitivity
    (687.6KB) These chromatograms show the sensitivty of the CCD ( Catalytic Combustion Detector ) detector on the Gasless Educational GC using room air
    as carrier gas.

Download

  • Hydrogen, Methane and CO2 using Model 30 TCD GC (273.1KB)
    This chromatogram shows .5ml of 1% gases separated at room temperature on the very small, low cost Model 30 GC with a 3 foot Haysep D column.

Download

  • CTR1 column chromatograms
    (430.0KB) The SRI CTR1 equivilent column set is a combination of Haysep D and MoleSieve 5A columns in parrallel.  This is useful for measuring O2, N2, CH4, CO
    and CO2 in one injection.

Download

  • TCE on Four detectors
    (1.3MB) These chromatograms show TCE at 1ppm and 100ppb on FID, PID, DELCD and ECD detectors.

Download

  • BTEX+TCE and PCE using FID/DELCD combo detector

    (503.0KB) This chromatograms shows how useful the combination FID and DELCD detector is.  The DELCD responds only to the halgenated molecules like TCE and PCE while the FID responds to all hydrocarbons.

Download

  • BTEX on Cannabis GC column
    (475.9KB) These chromatograms show 1 and 10ppm BTEX using the 30 meter MXT502 column supplied with SRI Cannabis testing GCs.  Its useful to measure benzene and other toxic residual solvents on the capillary column because
    the packed column used for residual solvents does not elute benzene as a
    sharp peak so 1ppm detection is not practical on the packed column but is very possible on the capillary column.

Download

  • Hydrogen detection on SRI RGD detector
    (472.5KB) These chromatograms show the detection of ambient H2 ( about 5ppm ) using the SRI RGD ( reduction gas detector ).

Download

  • SF6 detection at ambient levels using both loop and trap
    (2.4MB) This series of chromatograms shows the detection of SF6 (sulfur hexafluoride ) using an SRI GC with ECD detector.
    Detection is compared between a 1ml loop injection and a pre-concentrator trap
    .

Download

  • Edibles GC Stop-flow and Backflush timing
    (522.7KB) This chromatogram shows the effect of the mid-point stop flow timing on
    the Edibles GC configuration.

Download

  • Comparison of MXT500 and MXT502 Columns for Cannabis Analysis

    (199.3KB) This one page documents shows the temperature programs used on
    the two column types.
    SRI has had to switch from the 15 meter MXT500 column to a 30 meter MXT502 column because the MXT500 column is no longer produced as of 2020. 
    The new MXT502 column is better in some ways.

Download

  • 7 Cannabinoids on 30MXT502.2 column
    (849.4KB) This chromatogram shows THCV, CBD, CBC, d8THC, d9THC,
    CBG and CBN separated on the 30 meter MXT502.2 column.

Download

  • THCA vs d9THC comparison
    (501.0KB) These chromatograms show equal amounts of THCA and d9THC injected on-column under identical condtions.  It shows that THCA converts to d9THC in the GC very close to ( within statistical error )  the theorectical conversion rate of .877.

Download

  • D10THC separation on SRI GC (263.5KB)
    This chromatogram shows that D10 elutes between D8 and D9 on an
    SRI 310 GC using cylinder H2 carrier and a two column backflush configuration.

Download

  • THCP and 11HydroxyD9THC plus 7 other cannabinoids
    (857.2KB) This chromatogram shows the elution times of 9 cannabinoids including THCP and 11HydroxyD9THC.

Download

  • Typical 1 minute Mudlogger C1-C5 and C6+ backflush
    (872.6KB) These chromatogram show the typical tests we run for the 1 minute mudlogger configuration.

Download

  • Tap Water Purge&Trap with ECD and DELCD detectors in series
    (543.9KB) This chromatogram shows the relative responses of the DELCD and ECD detectors to the TriHaloMethanes ( THM ) in tap water.

Download

  • Ethylene Oxide at ppm levels (733.6KB)
    These chromatogams show .5, 5 and 50ppm ETO on a 3' Haysep D column

Download

  • 10ppm BTEX+ on PID and FID in series (445.9KB)
    This chromatogram shows the response of the two detectors plumbed in series.

Download

  • Trihalomethanes in Water using DELCD detector and Purge&Trap
    (1.6MB) This set of chromatograms shows the measurment of THMs in water
    ( at ppb level )  using the SRI 8610C GC equipped with DELCD detector and Purge&Trap concentrator.
    Results are shown with helium carrier gas and then again using plain room air ( from the built-in air compressor ) as the carrier gas resulting in a GC which requires no gas to perfrom this analysis.

Download

  • Greenhouse Gas GC chromatograms
    (2.8MB) Final test chromatograms from a Greenhouse Gas GC which also has a TCD detector for H2, O2, N2 analysis alsong with the normal methane, CO2 and N2O peaks.

Download

  • Typical Cannabinoids Chromatogram
    (107.5KB) This chromatogram shows a typical separation of CBD, CBC, d9THC,
    CGB and CBN on a 15meter MXT500 .25micron .53mmid column.

Download

  • Hemp sample derivitized and un-derivitized
    (1.3MB) This series of chromatograms shows a hemp sample measured two ways, derivitized and not derivitized.

Download

  • Terpenes and Cannabinoids in one analysis (463.5KB)
    This chromatogram shows 15 terpenes and 5 cannabinoids measured
    in one analysis on a Restek 30 meter MXT502.2 1 micron film column

Download

  • Olive Oil and MCT OIL on the SRI310MM cannabis GC (1.1MB)
    These chromatograms show olive oil, MCT oil and the cannabinoids
    on the 15meter MXT500 .25micron column.

Download

  • Cannabinoids in MCT oil using SRI 310Edibles GC configuration
    (887.0KB) These chromatograms show how the SRI 310 Edibles GC uses its
    stop-flow and backflush capability to reject the MCT and hiogher boiling oils while
    still measuring the cannabinoids ( CBD, THC and CBN ).
    The pre-column in this GC configuration cataches the higher boiling molecules
    and then backflushes them to vent so they never arrive at the main column.

Download

  • Cannabis "Edibles" GC test sequence (1.1MB)
     This series of chromatograms show how the stop-flow timing affects the high boiling peak cut-off

Download

  • Argon-methane ( P5 ) compared to Nitrogen as ECD carrier gas
    2.0MB) This chromatogram series compares the Greehhouse Gas GC configuration using P5 vs N2 when measruing N2O in room air and also N2 vs Hydrogen as carrier gas when measruing ambient methane.  Reproducibily is also caculated for N2O
    using P5 carrier.

Download

  • Sulfur in Natgas
    (1.1MB) These chromatograms show H2S, COS, SO2 and DimethylSulfide separated from natural gas hydrocarbons C1-C6 using the SRI Sulfur in Natural Gas GC configuation.  This configuation uses two columns to achieve the best separation.

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  • 18ppb H2S ( hydrogen sulfide )
    (947.4KB) This series of chromatograms shows 18ppb of H2S measured using
    a preconcentrator trap and FPD detector

Download

  • Monomers on FID and 10MXT1 3micron column

    (676.8KB) This chromatogram shows assorted monomers separated on a non-polar column.

Download

 Cannabis and Hemp

USA Regulations here !  Be-a-Ware ! Due Diligence in Australia  IS required !
for Licensed R&D Only !  ALL until  “we” ALL get  OUR Act  together ! . . . legalities DO apply !

  • 310MM Cannabis and Hemp GC Configurations

    (447.6KB) General information on SRI's two 310MM Cannabis and Hemp GC Configurations for testing cannabinoid potency, terpenes, residual solvents,
    and edible cannabis products.

Download

  • Cannabis and Hemp Potency Testing (THC, CBD, CBN)

    (1.4MB) The procedure for cannabis and hemp potency analysis (e.g., THC, CBD, CBN ...) in cannabis flower.

Download

  • Basic Sample Preparation for Edibles Cannabis Testing

    (1.2MB) Basic sample preparation of edible cannabis and hemp enfused products for potency testing (CBD, THC, CBN).

Download

  • All-In-One Cannabis Potency and Terpene Analysis

    (552.4KB) Concurrent analysis for potency and terpene profiles in cannabis.

Download

  • Terpenes in cannabis analysis

    (2.6MB) Analysis of terpene profile

Download

  • Advanced Edible Cannabis Sample Preparation

    (1.9MB) A more advanced and thorough sample preparation of cannabis infused edible products. Following this procedure can help preserve your column,
    and is recommended for certain infusions.

Download

Calibrating six cannabinoids in CBD standard (758.6KB)

Method to calibrate 6 major cannabinoids with just a CBD standard

Download

  • Calibration of residual solvents (butane)

    (170.5KB) Explaination on how to calibrate butane for residual solvent analysis

Download

  • THC-A vs. d9-THC Measurement

    (914.6KB) Procedure to anaylze THC-A and other acid forms of cannabinoids
    (e.g., CBD-A, CBN-A...) on a gas chromatograph

Download

  • Simple Cannabis Potency Testing (5.2MB)

    Article written to explain the ease of testing cannabinoids on the
    SRI Gas Chromatograph

Download

  • Residual Solvent Calibration: Ethanol and Butane (77.2KB)

    Procedure to calibrate ethane as a residual solvent

Download

  • Fixing the Disappearing CBN Peak (170.9KB)

Download

  • Specific Instructions for version 4.90

    (553.4KB) This document explains how version 4.90 is pre-setup for internal standard as well as normalized area percent calculations.  Normarea% is better for distillates and isolates

Download

  • Cannabinoid Standard Comparison (268.3KB)

Download

  • Internal Standard Calibration for Cannabis Testing (1.5MB)

    This document describes Internal and External calibration for Cannabis Analysis

Download

  • Colorado Hemp Testing SOPs

    (964.2KB) This document describes the hemp testing protocols suggested by
    the State of Colorado

Download

  • Colorado Hemp Drying and Sample Prep Method (376.0KB)

    This document outlines the Colorado suggested method of drying
    and preparing a hemp sample for GC analysis.

Download

  • Residual Solvents In Cannabis and Hemp Concentrates Testing (856.3KB)

    This document describes how to test cannabis and hemp concentrates
    for residual solvents used in the manufacturing process such as butane, acetone,
    and gasoline residue.

Download

  • Terpenes in Cannabis Comparison on Two Columns (366.8KB)

    This document shows the retention order of most terpenes on the
    two most widely used columns for terpene analysis.

Download

  • Cannabinoid Calibration Math

    (30.6KB) This document describes how to convert from the nanograms / microliter result from the calibration curve to the starting percentage in the flower, concentrate
    or edible sample
    .

Download

  • May 2017 proposed CA testing rules

    (466.9KB) This document details the proposed rules for California Cannabis Testing Labs

Download

  • CA Cannabis Testing Reasons May 2017 (3.0MB)

    This doc explains the reasoning behind the proposed CA regulations as of May 2017

Download

Long Beach Cannabis Lab Testing requirements

(245.0KB) This doc from the City of Long Beach CA describes the requirements
for labs testingmedical cannabis.

Download

  • New Developments in Cannabis testing by GC January 2018

    (938.6KB) This document explains how to derivitize cannabis samples for
    better quantitation and to measure THCA and CBDA as well as d9THC and CBD
    in the same analysis. > Hugh

Download

  • Latest California Regulations

    (1.3MB) This is the 7-19-2018 version of the California cannabis regulations.
      See chapter 6 for the lab testing requirements.

Download

310M&M Startup kit November 2018 (111.9KB)

This doc shows the contents of the startup kit supplied with the 310M&M GC for cannabis testing

Download

  • Sources for Cannabis and Terpene Calibration standards

    (112.5KB) This docs has links for where to buy Cannabinoid ( CBD, THC etc )
    and Terpene ( myrcene, limonene etc ) calibration standards.

Download

Download

  • THCA vs d9THC

    (501.0KB) These chromatograms show equal amounts of d9THC and THCA
    injected on-column under identical condtions.  It shows that the THCA converts to d9THC very close to the theorectical conversion rate of .877 without degradation or loss.

Download

Download

Approvals, Certifications, Forms, and Warranty

USA Regulations here !  > Be-a-Ware !  >Due Diligence in Australia  required !

SRI W-9 Form signed in 2021 (604.0KB)

Download

US Customs Form 3311

(885.0KB) his form should accompany any shipment of SRI equipment back
to the USA from abroad.

Download

Importers Declaration for support Form3311 for return of US goods

(566.8KB) This form is sometimes needed along with Form 3311 when returning
a GC to SRI from out of the USA.

Download

NAFTA Certification of Origin (650.1KB)

Download

Exemptions allowed for CE/ROHS marking of products for R&D use

(4.6MB) These documents show that SRI Gas Chromatographs sold for R&D purposes in the European Union are not subject to the requirements of the Low Voltage
and Electromagnetic Compatibility rules which govern consumer appliances
( the CE and ROHS marks ).

Download

Model 510 Standalone Methanizer CE tests (2.2MB)

Download

TUV Factory Inspection Report November2020

(3.9MB) This shows compliance with TUV who issues our NRTL ( UL and CSA equivilent ) and GC certifications.

Download

Declaration of Conformity, and other certificates

(274.7KB) Click here to see our TUV Certification

Download

Test Report EM (673.3KB)

Download

EPA Pams Report

(8.2MB) This document was produced by the EPA after extensive testing of the
SRI ( and other brands ) GCs for air pollutants in the 1ppb range. 

Download

Privacy Policy (140.2KB)

Download

UL, CSA and GS certificates from TUV 11-18-2019

(1.1MB) These two certification documents ( in one file ) show SRI products are allowed to display the TUV NRTL ( UL and CSA equvalents ) and the European
GS mark.

Download

TUV CDF 4-13-2018

(101.1KB) This is the CDF for SRI products approved by TUV dated 4-13-2018

Download

TUV certification checklist (487.6KB)

Download

TUV 61010 test (3.5MB)

Download

Workman's Comp Insurance Certificate

(861.8KB) This document shows our Workman's Comp Insurance Policy

Download

General and Product Liability Insurance Policy

(21.2KB) This document shows our General and Product Liability Insurance policy

Download

Resale certficate for SRI

(680.4KB) This is the reasale certficate for Scientific Repair Inc. dba SRI Instruments EIN 95-4121838

Download

SRI Warranty

(41.4KB) This is SRI's warranty. ( also applies in Australi!a ! )

Download

Schematics

Model310MM Hydrogen Generator Wiring.July 2020

(58.6KB) This doc shows the wiring for the Hydrogen Generator part of the
Model 310MM GC

Download

Model420 Hydrogen Generator Wiring

(56.8KB) This doc shows the wiring for the Model 420 GC.

Download

ALL Current SRI GC PDF Files > ~Sept22

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