Description

Gastec P-74-H Permeation Tube Dimethyl Sulphide

Gastec P-74-H (also cataloged as P74H) is a certified, high-emission Dimethyl Sulphide (CH $\text{CH}_3\text{SCH}_3$ / DMS) permeation tube engineered as a primary trace-gas generation standard for producing known, higher-concentration span gases of dimethyl sulphide vapor.

While standard-emission tubes are optimized for ultra-low trace concentrations, the H-suffix (High-emission) variant features elevated membrane permeability to deliver a higher nanogram-per-minute ( $\text{ng/min}$ ) release rate. This makes it ideal for calibrating mid-to-high range gas analyzers, verifying colorimetric detector tubes, and auditing industrial process safety systems.

Specifications

Parameter	Specification
Manufacturer	Gastec Corporation
Part Number / Model	P-74-H / P74H
Target Chemical Vapor	Dimethyl Sulphide / DMS ( $text{CH}_3text{SCH}_3$ )
Emission Category	High-Emission Rate (H-series)
Permeation Membrane	Fluoropolymer (FEP/Teflon) capillary reservoir
Certified Operating Temp	$30.0^circtext{C to }40.0^circtext{C}$ (specified on factory calibration certificate)
Primary Output Range	Generates mid-to-high ppm span gas (dependent on carrier gas flow rate)
Expected Service Life	6 to 12 months (determined by operating temperature and initial fill mass)
Compatible Equipment	Gastec PD-1B / PD-1C Permeaters, standard dynamic gas diluters

Features

Concentration range 0.04 – 6.3 ppm

Applications

Paper Mill & TRS Emission Audits: Calibrating total reduced sulfur (TRS) continuous emission monitors (CEMS) and gas chromatographs in kraft pulp mills, food processing operations, and wastewater facilities.
Natural Gas & Odorant Quality Control: Calibrating flame photometric detectors (FPD), photoionization detectors (PID), and gas chromatographs used to analyze sulfur compounds in natural gas streams.
Colorimetric Detector Tube Audits: Laboratory verification and accuracy auditing of Gastec Dimethyl Sulphide detector tubes (such as Gastec 74 series).

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Gastec P-74-H Permeation Tube Dimethyl Sulphide

Gastec P-74-H (also cataloged as P74H) is a certified, high-emission Dimethyl Sulphide (CH

\text{CH}_3\text{SCH}_3

/ DMS) permeation tube engineered as a primary trace-gas generation standard for producing known, higher-concentration span gases of dimethyl sulphide vapor.

While standard-emission tubes are optimized for ultra-low trace concentrations, the H-suffix (High-emission) variant features elevated membrane permeability to deliver a higher nanogram-per-minute (

\text{ng/min}

) release rate. This makes it ideal for calibrating mid-to-high range gas analyzers, verifying colorimetric detector tubes, and auditing industrial process safety systems.

Specifications

Parameter

Specification

Manufacturer

Gastec Corporation

Part Number / Model

P-74-H / P74H

Target Chemical Vapor

Dimethyl Sulphide / DMS (

text{CH}_3text{SCH}_3

)

Emission Category

High-Emission Rate (H-series)

Permeation Membrane

Fluoropolymer (FEP/Teflon) capillary reservoir

Certified Operating Temp

30.0^circtext{C to }40.0^circtext{C}

(specified on factory calibration certificate)

Primary Output Range

Generates mid-to-high ppm span gas (dependent on carrier gas flow rate)

Expected Service Life

6 to 12 months (determined by operating temperature and initial fill mass)

Compatible Equipment

Gastec PD-1B / PD-1C Permeaters, standard dynamic gas diluters

Applications

Paper Mill & TRS Emission Audits: Calibrating total reduced sulfur (TRS) continuous emission monitors (CEMS) and gas chromatographs in kraft pulp mills, food processing operations, and wastewater facilities.

Natural Gas & Odorant Quality Control: Calibrating flame photometric detectors (FPD), photoionization detectors (PID), and gas chromatographs used to analyze sulfur compounds in natural gas streams.

Colorimetric Detector Tube Audits: Laboratory verification and accuracy auditing of Gastec Dimethyl Sulphide detector tubes (such as Gastec 74 series).

Best Gastec P-74-H Permeation Tube Dimethyl Sulphide

Product Note:

Description

Gastec P-74-H Permeation Tube Dimethyl Sulphide

Specifications

Features

Applications

Downloads

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Best Gastec P-74-H Permeation Tube Dimethyl Sulphide

Product Note:

Description

Gastec P-74-H Permeation Tube Dimethyl Sulphide

Specifications

Features

Applications

Downloads

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