Gas detector calibration policy

Terra-IL: gas detector calibration frequency in Israel. Legal requirements, recommended practice and official sources

Introduction: there is no single, exact legal regulation in Israel that sets a fixed calibration interval (such as "exactly every X months") for every gas detector. The requirement is more general, and is based on: work safety regulations; Ministry of Labor and Welfare guidelines; Ministry of Environmental Protection guidelines; the manufacturer's instructions; a workplace risk assessment (by the safety officer); and international standards: ISO/IEC 17025 (calibration) and ISO/IEC 17020 (inspection). What sets the interval in practice? 1. The manufacturer's instructions come first and are binding. Most manufacturers recommend a full calibration every 6 months, and sometimes every 3–12 months depending on the detector and the gas. 2. A daily/periodic function check (bump test) is recommended or required before each use (especially for portable detectors), to make sure the detector responds correctly. 3. Environmental conditions such as exposure to chemicals, extreme temperature, humidity and dust call for more frequent calibration. The safety officer sets a calibration plan for the site. Portable detectors: bump test before each use + full calibration every 6 months (or yearly in some cases). Fixed detectors: usually every 6 months.

According to the Ministry of Environmental Protection, "Additional conditions for installing detectors to measure toxic, flammable and explosive gases"

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