Adaptability and optimization of GBZ/T 223-2009 Specification of Setting Monitoring and Alarming Devices for Toxic Gas in Workplaces
10.20001/j.issn.2095-2619.20251218
- VernacularTitle:GBZ/T 223—2009《工作场所有毒气体检测报警装置设置规范》的适配性与优化
- Author:
Xia WU
1
;
Shijie HU
Author Information
1. Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou, Guangdong 510300, China
- Publication Type:Journal Article
- Keywords:
Workplace;
Toxic gas;
Detection;
Alarm device;
Alarm set points;
Adaptability
- From:
China Occupational Medicine
2025;52(6):695-700
- CountryChina
- Language:Chinese
-
Abstract:
GBZ/T 223-2009 Specification of Setting Monitoring and Alarming Devices for Toxic Gas in Workplaces (Hereinafter referred to as "GBZ/T 223-2009") is China′s first technical standard for toxic gas alarm devices in workplaces. Its implementation has provided an important basis for the primary prevention of occupational diseases. However, with the upgrading of industrial structures and the development of new quality productive forces, GBZ/T 223-2009 has shown inadequacies in meeting the needs of new technologies and emerging industries. First, there is a lack of coordination among standards. GBZ/T 223-2009 faces issues such as inconsistent terminology definitions and technical parameters when interfacing with other relevant standards, including GB/T 50493-2019 Standard for Design of Combustible Gas and Toxic Gas Detection and Alarm for Petrochemical Industry and GB 12358-2024 Gas Detection and Alarm Instruments for Workplace--General Technical Requirements. This affects the coordinated implementation of these standards. Second, the operability of key provisions has declined. Various aspects of GBZ/T 223-2009, such as alarm classification, alarm setpoints, alarm device layout, concentration conversion, multi-component alarm settings, alarm sound pressure levels, metrological verification, and appendix contents, no longer adequately meet the current technological developments in the industry and on-site management requirements, making optimization and improvement urgently needed. It is recommended that the revision of GBZ/T 223-2009 introduce a two-stage alarm mode, optimize the principles for alarm setpoints and alarm device layout, standardize concentration conversion methods and metrological verification requirements, and incorporate application specifications for new detection technologies and intelligent instruments, to enhance the alignment of the standard with the trends of informatization and intelligent development.
