Gb T 23990 2009 Translated English Of Chinese Standard Gbt 23990 2009 Gb T23990 2009 Gbt23990 2009

This standard specifies the use of gas chromatography to determine the content of benzene, toluene, ethylbenzene and xylene in coatings. In this standard, Method A is suitable for the determination of benzene, toluene, ethylbenzene and xylene content in solvent-based coatings; Method B is suitable for the determination of benzene, toluene, ethylbenzene and xylene content in water-based coatings.

This Standard specifies contents such as requirements, test methods and inspection rules for limit of certain harmful elements of coatings for consumer products contacting with human body This Standard applies to various coatings that are used in consumer product contacting with human body.

This standard specifies the classification and code, dimension, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificates of cold-drawn precision single welded steel tubes. This standard is applicable to the cold-drawn precision single welded steel tubes which are used in the manufacture of condensers, evaporators, fuel pipes, lubricating oil pipes, electric heating pipes, cooler pipes and general pipe fittings in such industries as refrigeration, automotive, electric heating and so on.

This standard specifies the technical requirements for the types of recovery marking of products and components, the recovery marking and requirements of products, the indication of composition of plastic components, the recycling marking, etc. This standard applies to producers and importers.

This Standard specifies the determination methods of alkylphenols and alkylphenol polyethoxylates in textile dyeing and finishing auxiliaries. This Standard applies to the determination of contents of alkylphenols and alkylphenol polyethoxylates in textile dyeing and finishing auxiliaries by LC/MS method.

This part is used for reference when the national standards identically adopt international standards, or when other standards adopt international standards. The numbering method of national standards which identically adopt the ISO standards and/or IEC standards as specified in Chapter 7 of this part does not apply to standards issued by other international standardization bodies published by ISO.

This Standard specifies the product classification and product code, technical requirements, test methods, inspection rules, and label, package, transportation, storage requirements for canned tuna. This Standard applies to the production, circulation, supervision and inspection of canned tuna products.

This Standard specifies the technical requirements, test methods, test rules, mark, packaging and storage of the belt conveyor. This Standard is applicable to the transportation of different kinds of massive, granular bulk materials and conveyors.