NB/T 51022-2014Technical specification of filling pipe for vertical feeding solid backfilling materials (English PDF)
固体充填材料垂直投料管技术条件
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Issued by
NEA
Level / Type
Industry · Recommended
Issue date
October 15, 2014
Implementation date
March 1, 2015
Scope
NB/T 51022-2014 is the English-translated version of 固体充填材料垂直投料管技术条件.
NB/T 51022-2014 belongs to the recommended energy industry standards of China and deals with the pipe that feeds solid backfilling material down a vertical borehole in a coal mine.
It gives the terms and definitions for such filling pipe and describes its structural types and sizes, then sets the technical requirements and the matching test methods.
Inspection rules and the provisions for marking, packaging, transport and storage complete the document. It quotes GB/T 228.1, GB/T 230.1 and GB/T 241, GB/T 8162-2008, GB/T 2828.1-2012, GB 50236 and DL/T 680-1999. Issued on 15 October 2014, it has applied since 1 March 2015.
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Document preview — NB/T 51022-2014
National Standard of the People's Republic of China
- ICS
- 73.010
Issued by: National Energy Administration of the People's Republic of China
Contents
- 2 Normative references
2 Normative references
NB/T 51022-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 228.1
GB/T 230.1
GB/T 241
GB/T 2828.1-2012
GB/T 8162-2008
GB 50236
DL/T 680-1999
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 228.1Metallic Materials — Tensile Testing — Part 1: Method of Test at Room Temperature
- GB/T 230.1Metallic materials - Rockwell hardness test - Part 1: Test method
- GB/T 241Metallic materials — Tube — Hydrostatic pressure test
- GB/T 2828.1-2012Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
- GB/T 8162-2008Seamless Steel Tubes for Structural Purpose
- GB 50236Code for construction of field equipment, industrial pipe welding engineering
Similar standards
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Related Standards
GB 50236-2011 — Code for construction of field equipment, industrial pipe welding engineering
GB/T 228.1-2021 — Metallic Materials — Tensile Testing — Part 1: Method of Test at Room Temperature
GB/T 230.1-2018 — Metallic materials - Rockwell hardness test - Part 1: Test method
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NB/T 51022-2014
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