Gas Range



Mercaptan Gas Detection

Mercaptan Gas Detectors – Gas detectors from a1-cbiss for the detection of mercaptan-

CAS Number: 74-93-1
TWA: 0.5ppm


Mercaptan is a colourless, flammable gas with an extremely strong and putrid smell.


When used in industrial settings, methyl mercaptan is flammable and can cause headaches, nausea, eye irritation, and respiratory distress at high doses. It can be absorbed rapidly through inhalation and minimally through skin and eye exposure.

When inhaled, methyl mercaptan can cause symptoms including headaches, dizziness, nausea and eye irritation. At significant doses, methyl mercaptan inhalation is highly toxic and affects the central nervous system. It leads to more serious health complications and can be fatal.

Where is it found?

In the gas distribution industry, Mercaptan is used as an additive to give natural gas a distinct odour. Because natural gas has zero smell, mercaptan is used to give natural gas that “rotten egg” odour, making you aware of dangerous leaks.

How do you detect and measure Mercaptans?

Mercaptans can be detected via portable or fixed detection systems using PID technology based gas detectors. Gas detector tubes is also a popular choice to detecting levels of Mercaptans.

Discover the right Mercaptan detection solution for you

There are several types of sensors used for gas detection. The choice of gas sensor depends on:

  • What the purpose of detection is
  • Whether the gas detector is fixed or portable
  • Whether the detector is point or open path
  • The expected range of concentration
  • The presence of other gases that may affect readings or damage the sensor

These systems can measure flammable and toxic gases, report their presence and activate alarms or equipment. You should select your gas detection solution based on the number and type of gas sensors needed and your display and certification requirements.

Mercaptan gas products

Gas detection equipment can take many forms from portable to fixed detectors, and sample systems which enable Mercaptan detection to occur without a person having to enter the area being monitored. a1-cbiss stock Mercaptan gastec detector tubes as listed below.