China 'GB/T 18475-2001
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 18475-2001
Thermoplastics materials for pipes and fittings for pressure applications classification and designation--Overall service(design) coefficient 热塑性塑料压力管材和管件用材料分级和命名 总体使用(设计)系数
Issued Date:2001-10-24
Implemented Date:2002-05-01
Issued by:
The Standardization Administration of the People's Republic of China