JJG 693-2011 in English
SUPERSEDEDAlarmer Detectors of Combustible Gas
- Issued on:2011-06-14
- Implemented on:2011-12-14
- File Format:PDF
- Delivery:Via email within 1~3 business days
$224.00
Scope
This procedure applies to the initial calibration, subsequent calibration and in-use inspection of combustible gas detection alarms (including combustible gas detectors, hereinafter referred to as "instruments") used in non-mine operating environments.

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