Standard No.:	DB31/T 1177-2019
English Name:	The inspection and evaluation method for the corrosion and attenuation ofindustry non-stop gas transporting pipelines with large diameter
Chinese Name:	工业煤气大口径管道不停输腐蚀减薄检测及评价方法
Chinese Classification:	J70    Universal machinery and equipment in general
Professional Classification:	DB    Provincial Standard
ICS Classification:	77.040.20 77.040.20    Non-destructive testing of metals 77.040.20
Issued by:	Shanghai Municipal Administration for Market Regulation
Issued on:	2019-08-15
Implemented on:	2019-11-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	7500 words
Price(USD):	225.00
Delivery:	via email in 1~3 business day

本标准规定了工业煤气大口径架空管道不停输腐蚀减薄检测的基本要求、检测方法、评价方法，提出了检测周期的建议、检测和评价的报告格式。
本标准适用于输送介质为工业煤气、工作压力小于0.1 MPa，公称直径大于或等于500 mm的钢制管道。其他腐蚀性介质、公称直径小于500 mm的钢制管道也可参照使用。