GB/T 30040.4-2013
Leak detection systems.Part 4:Liquid and/or vapour sensor systems for use in leakage containments or interstitial spaces (English Version)

Standard No.: GB/T 30040.4-2013
Language: Chinese, Available in English version
Release Date: 2013
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 30040.4-2013

Scope: This part of GB/T 30040 specifies the overview of the Class III leak detection system for the double-layer gap of the double-layer system or the anti-leakage facility of the single-layer system for storing liquids that pollute water, double-layer gap, anti-leakage Installations, liquid sensors, vapor sensors, leak indication devices, type tests for liquid sensors, type tests for liquid identification sensors, type tests for vapor sensors and type tests for submerged vapor sensors. This section applies to the level III leak detection system of the double-layer gap of the double-layer system or the anti-leakage facility of the single-layer system for storing liquids that pollute the water. It does not apply to the leakage detection system that uses sensors that cannot be reused.

GB/T 30040.4-2013 Referenced Document

GB/T 30040.1 Leak detection systems.Part 1:General principles
GB/T 30040.7 Leak detection systems.Part 7:General requirements and test methods for interstitial spaces, leak protecting linings and leak protecting jacket

2013 GB/T 30040.4-2013 Leak detection systems.Part 4:Liquid and/or vapour sensor systems for use in leakage containments or interstitial spaces