Gb T 13448 2019 Translated English Of Chinese Standard Gbt 13448 2019 Gb T13448 2019 Gbt13448 2019

This Standard specifies terms and definitions of prepainted steel sheets and steel strips, as well as related test methods, test reports, etc. This Standard is applicable to the determination and evaluation of the coating properties of prepainted steel sheets and strips.

This Standard specifies the general technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of professional clothing. This Standard applies to professional clothing of mass production.

This Standard specifies terms and definitions, models and basic parameters, technical requirements, test methods, inspection rules as well as marks, packaging, transport and storage for down-the-hole hammers and bits. This Standard is applicable to down-the-hole hammers and bits that are powered by compressed air or a mixed medium of compressed air and water.

This Standard specifies the technical requirements for spectacle frames, the selection of test samples, sample pretreatment and requirements, testing, inspection and compliance, test methods, and marking. This Standard applies to various types and styles of spectacle frames made of metal, plastic, and natural organic materials, including rimless mounts, semirimless mounts, and folding spectacle frames.

This Standard specifies the designations, order information, manufacturing methods, chemical composition, technical requirements, sample preparation, test methods, inspection rules, marking, quality certificate, rust prevention, packaging and storage of spheroidal graphite iron castings.

This Standard specifies the classification, technical requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of rubber antioxidant - polymerized 2,2,4-trimethyl-1,2-dihydroquinoline (hereinafter referred to as rubber antioxidant TMQ).

This Standard gives the definition of nominal pressure of the pipework components, and specifies the nominal pressure series that are used for the pipework components. This Standard applies to pipework components which use PN or Class to mark nominal pressure.

This Standard specifies the penetration strength test principle, samples, equipment, test conditions, test procedures, test data processing and test reports for gray cast iron materials and vermicular graphite cast iron materials whose designations are RuT400 ~ RuT500. This Standard applies to the penetration strength test of gray cast iron materials and vermicular graphite cast iron materials whose designations are RuT400 ~ RuT500.