GB/T 46692.1-2025 Gas detectors for workplace atmospheres—Part 1:Performance requirements of detectors for toxic gases

Scope

This document specifies the general requirements and test methods for the design, function, and performance of portable, mobile, and fixed toxic gas or vapor detectors or concentration measurement devices used in workplace environments and other industrial and commercial applications. This document applies to continuous sensing detectors with indication, alarm, and/or other output functions that indicate the presence of toxic gases or vapors in the environment (where the sensors generate electrical signals when gas is present) and, in some cases, automatically or manually trigger protective measures. This document applies to the following two types of devices: — HM type (health monitoring) "occupational exposure" devices, for occupational exposure measurement, where the performance requirements focus on the uncertainty of gas concentration measurement within the occupational exposure limit value (OELV) range. — SM type (safety monitoring) "general gas detection" devices For general gas detection applications (such as safety warnings and leak detection), the performance requirements focus on the alarm signal. The measurement upper limit is specified by the manufacturer based on the intended use of the device.

Development Information

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