Description

Gastec P-71-H Permeation Tube Methyl Mercaptan

Gastec P-71-H (also cataloged as P71H) is a certified, high-emission Methyl Mercaptan ( $\text{CH}_3\text{SH}$ / Methanethiol) permeation tube engineered as a primary trace-gas generation standard for producing known, higher-concentration span gases of methyl mercaptan vapor.

While the standard P-71-5 tube is optimized for ultra-low trace concentrations, the H-suffix (High-emission) model 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 high-range colorimetric detector tubes, and auditing industrial safety alarms.

Specifications

Parameter	Specification
Manufacturer	Gastec Corporation
Part Number / Model	P-71-H / P71H
Target Chemical Vapor	Methyl Mercaptan / Methanethiol ( $text{CH}_3text{SH}$ )
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 0.16 – 11.4 ppm

Applications

Natural Gas & Odorant Monitoring: Calibrating photoionization detectors (PID), flame photometric detectors (FPD), and process gas chromatographs used to verify odorant dosing levels in natural gas transmission lines and LPG facilities.
Paper Mill & Refinery Process Safety: Calibrating fixed gas detection systems and ambient air monitors in kraft paper mills, sewage treatment plants, and sulfur recovery units.
Colorimetric Detector Tube Audits: Laboratory verification and accuracy auditing of Gastec high-range Methyl Mercaptan detector tubes (such as Gastec 70H series).

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Description

Gastec P-71-H Permeation Tube Methyl Mercaptan

Gastec P-71-H (also cataloged as P71H) is a certified, high-emission Methyl Mercaptan (

\text{CH}_3\text{SH}

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

While the standard P-71-5 tube is optimized for ultra-low trace concentrations, the H-suffix (High-emission) model 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 high-range colorimetric detector tubes, and auditing industrial safety alarms.

Specifications

Parameter

Specification

Manufacturer

Gastec Corporation

Part Number / Model

P-71-H / P71H

Target Chemical Vapor

Methyl Mercaptan / Methanethiol (

text{CH}_3text{SH}

)

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

Natural Gas & Odorant Monitoring: Calibrating photoionization detectors (PID), flame photometric detectors (FPD), and process gas chromatographs used to verify odorant dosing levels in natural gas transmission lines and LPG facilities.

Paper Mill & Refinery Process Safety: Calibrating fixed gas detection systems and ambient air monitors in kraft paper mills, sewage treatment plants, and sulfur recovery units.

Colorimetric Detector Tube Audits: Laboratory verification and accuracy auditing of Gastec high-range Methyl Mercaptan detector tubes (such as Gastec 70H series).

Gastec P-71-H Permeation Tube Methyl Mercaptan

Product Note:

Description