YB/T 4949-2021
Active
YB/T 4944-2021
Active
Industry standards-Black metallurgy
YB/T 4944-2021 Green Design Product Evaluation Technical Specification for Steel Spring Used in Track Coupling
YB/T 4944-2021 Green Design Product Evaluation Technical Specification for Steel Spring Used in Track Coupling
Basic Information
Standard Code:
YB/T 4944-2021
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Metallurgy
ICS Name:
Metallurgy
Publish Date:
2021-05-17
Implement Date:
2021-10-01
Scope
This document specifies the terms and definitions, evaluation principles and methods, and evaluation requirements for the green product evaluation of spring steel used in rail fasteners. This document is applicable to the evaluation of green design products made of spring steel used in rail fasteners.