中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 24522-2009
Metallic materials - Method of test for the determination of resistance to stable crack extension using specimens of low constraint 金属材料 低拘束试样测定稳定裂纹扩展阻力的试验方法
Issued Date:2009-10-30
Implemented Date:2010-05-01
Issued by:
The Standardization Administration of the People's Republic of China