China 'GB/T 30040.4-2013
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 30040.4-2013
Leak detection systems―Part 4:Liquid and/or vapour sensor systems for use in leakage containments or interstitial spaces 双层罐渗漏检测系统 第4部分:应用于防渗漏设施或双层间隙的液体或蒸气传感器系统
Issued Date:2013-12-17
Implemented Date:2014-09-01
Issued by:
The Standardization Administration of the People's Republic of China