Description

Gastec P-72-H Permeation Tube Ethyl Mercaptan

Gastec P-72-H (also cataloged as P72H) is a certified, high-emission Ethyl Mercaptan ( $\text{C}_2\text{H}_5\text{SH}$ / Ethanethiol) permeation tube engineered as a primary trace-gas generation standard for producing known, higher-concentration span gases of ethyl mercaptan 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 high-range colorimetric detector tubes, and auditing industrial safety alarms.

Specifications

Parameter	Specification
Manufacturer	Gastec Corporation
Part Number / Model	P-72-H / P72H
Target Chemical Vapor	Ethyl Mercaptan / Ethanethiol ( $text{C}_2text{H}_5text{SH}$ )
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

LPG & Natural Gas Odorant Monitoring: Calibrating photoionization detectors (PID), flame photometric detectors (FPD), and process gas chromatographs used to verify odorant injection levels in liquefied petroleum gas (LPG) bottling plants and natural gas distribution networks.
Refinery & Chemical Process Safety: Calibrating fixed toxic gas detection systems and ambient air monitors in petroleum refineries and chemical synthesis plants.
Colorimetric Detector Tube Audits: Laboratory verification and accuracy auditing of Gastec high-range Ethyl Mercaptan detector tubes (such as Gastec 72H series).

Downloads

Gastec P-72-H Permeation Tube Ethyl Mercaptan

Gastec P-72-H (also cataloged as P72H) is a certified, high-emission Ethyl Mercaptan (

\text{C}_2\text{H}_5\text{SH}

/ Ethanethiol) permeation tube engineered as a primary trace-gas generation standard for producing known, higher-concentration span gases of ethyl mercaptan 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 high-range colorimetric detector tubes, and auditing industrial safety alarms.

Specifications

Parameter

Specification

Manufacturer

Gastec Corporation

Part Number / Model

P-72-H / P72H

Target Chemical Vapor

Ethyl Mercaptan / Ethanethiol (

text{C}_2text{H}_5text{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

LPG & Natural Gas Odorant Monitoring: Calibrating photoionization detectors (PID), flame photometric detectors (FPD), and process gas chromatographs used to verify odorant injection levels in liquefied petroleum gas (LPG) bottling plants and natural gas distribution networks.

Refinery & Chemical Process Safety: Calibrating fixed toxic gas detection systems and ambient air monitors in petroleum refineries and chemical synthesis plants.

Colorimetric Detector Tube Audits: Laboratory verification and accuracy auditing of Gastec high-range Ethyl Mercaptan detector tubes (such as Gastec 72H series).

Gastec P-72-H Permeation Tube Ethyl Mercaptan

Product Note:

Description