General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 7631.14-1998
Scope
This standard specifies the detailed classification of products of group U (heat treatment) in class L (lubricants and related products). It is part of GB/T 7631. This International Standard provides a classification of lubricants and related products for use in heat treatment processes of metallic materials. This standard is understood in conjunction with GB/T 7631.1. The products in this group are divided into several varieties according to different application occasions.
GB/T 7631.14-1998 history
1998GB/T 7631.14-1998 Lubricants and related products (class L)--Classification--Part 14: Family U (Heat treatment)