Harmful Gas Detection with Confined Space Detectors
The detection of harmful gases in enclosed spaces requires the detector to enter for detection in advance. Before personnel enter, it is necessary to remotely detect the composition of harmful gases in the confined space. Perform testing in the following order: (1) Confirm oxygen and measure the current oxygen concentration level; (2) Confirmation of flammable gases and detection of changes in flammable gases; (3) Confirmation of toxic gases and detection of whether the concentration of each toxic gas is below the permissible exposure limit (PEL) specified by OSHA. The commonly toxic gases in enclosed spaces are hydrogen sulfide, carbon monoxide, and other toxic compounds are not included. The detector launched by RAE company can detect both single gases and mixed toxic gases simultaneously.
Sampling and detecting the concentration of various gases or vapors at the top, middle, and bottom of a confined space is a crucial task. Some gases are lighter than air (such as methane and flammable gases) and can be collected in the upper part of a confined space; Some gases have a heavier specific gravity than air (such as hydrogen sulfide) and can be found at the bottom of enclosed spaces; There are other gases with a specific gravity almost as heavy as air (such as carbon monoxide) that can be detected in the middle of a confined space.
Sampling at different heights in a confined space and continuous detection by the detector based on the actual situation, we will find that the detection results are different.
As a remote air detector deployed in the area, we can enter restricted areas based on its uninterrupted detection information. A closed space enters the detector probe or observation port and continuously sends detection results to peripheral personnel. With the release of leaks, toxic vapors, or changes in space, even without an alarm, the conditions in a confined space are constantly changing.
Detector used for confined space entry
RAE has recently launched an innovative confined space entry detector (CSE) that includes all the functions of a multi gas detector. Named Q-RAE confined space entry detector. This instrument comes pre installed with many convenient tools for testing gases required by OSHA 29CFR 1910.146. Thanks to these presets, we can work more efficiently in detecting flammable gases, hydrogen sulfide, carbon monoxide, and different levels of oxygen.
