ndustry/professional/association standards refer to standards that are adopted and publicly issued by a national industry standardization body or a professional association/club standardization organization.

Relevant departments of the Chinese government can formulate and issue industry standards. Industry standards in China need to be reviewed and approved by the administrative department for standardization under the State Council, and a unified industry standard code is assigned, such as agriculture (NY), machinery (JB), chemicals (HG), shipbuilding (CB), tourism (LB), etc.

Standards formulated by legally established social groups in China are called association standards. The unified code for association standards is "T", and each association standard code is "T" followed by "/group code".

Standards issued by some foreign professional associations often have a wide influence in specific professional fields. The main ones include: Institute of Electrical and Electronics Engineers (IEEE), American Society for Testing and Materials (ASTM), World Wide Web Consortium (W3C), etc.