DB31/T 1177-2019
DB31/T 1177-2019 The inspection and evaluation method for the corrosion and attenuation of industry non-stop gas transporting pipelines with large diameter
Abstract
This standard specifies the basic requirements, detection methods, and evaluation methods for the detection of corrosion thinning in large-diameter overhead pipelines for industrial gas without interrupting gas transmission, and proposes recommendations for the detection cycle and the reporting format for detection and evaluation.
This standard applies to steel pipes with a nominal diameter of 500 mm or greater, transporting industrial gas at a working pressure of less than 0.1 MPa. Other corrosive media and steel pipes with a nominal diameter of less than 500 mm can also be used as reference for application.
General Product Information
| Document Type | Shanghai CityLocal standards |
|---|---|
| Standard Status | Abolished |
| Standard Code | DB31/T 1177-2019 |
| CCS | General machinery and equipment |
| ICS | Nondestructive testing of metal materials |
| Implement Date | 2019-11-01 |