This Part of GB/T 308 specifies the size, technical requirements, marking, measurements, inspection method, inspection regulation, packaging, and storage of finished steel-balls used with rolling bearings.
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This Standard specifies general technical delivery requirements for steel and steel products contained in GB/T 15574 (excluding steel and powder metallurgy products). When the provisions of productstandard or agreement in the contract are inconsistent with the provisions of this Standard, the provisions of productstandard or agreement in the contract shall prevail.
This standard specifies the technical requirements and test methods of the annealed, quenched and tempered rolling bearing ring and rolling element made from GCr15, GCr15SiMn, GCr15SiMo and GCr18Mo steels which meet those specified in GB/T 18254-2002.
This Standard specifies classification, code, dimension, shape, weight, permissible deviations, technical requirements, test methods, inspection rules, packaging, marking, and quality certificate of cold-drawn or cold-rolled precision seamless steel tubes.
This standard specifies the specifications for vibration (velocity) of deep groove ball bearings (hereinafter referred as bearings) of which the appearance dimensions comply with provisions of GB/T 276-1994; diameter series are 0, 2 and 3; nominal inner diameter is 3 mm ~ 120 mm; radial clearances comply with Group 0, 2 and 3 clearances as specified in GB/T 4604-2006. And it specifies the vibration (velocity) peak-value specifications corresponding to Group V3 and V4, and the inner diameter is 3 mm ~ 60 mm.
This part of NB/T 47019 specifies such purchase technical specifications as the tube size, shape, mass, technical requirements, inspection and test rules, quality certificates, and so on, AND defines the duties, rights and obligations of the relevant parties.
This Standard specifies the dimension, shape, tolerance, technical requirements, test methods, inspection rules, packaging, symbols and quality certificate of the welded stainless steel tubes for seawater desalination plants.
This standard specifies the common requirements for sampling, pretreatment and test result reports as stated in determination method criteria of each part in GB 14883 (unless otherwise specifically stated). This standard applies to the determination method criteria of each part in GB 14883.
This Standard specifies the basic health requirements and management guidelines for the sites, facilities and personnel of all links of the production of all kinds of foodcontacted materials and products, including purchase of raw and auxiliary materials, processing, packaging and transportation.
This standard specifies the using principles of additives in food contact materials and their products well as the variety, use scope, maximum level, specific migration limit or maximum residue quantity, total specific migration limit and other limit requirements of their allowable additives. This standard also includes monomers of some basic polymers or other initiators of polyreaction used during the processing of food contact materials and their products.
This Standard specifies the determination of burning residues in the resin of food contact materials and products. This Standard is applicable to the determination of burning residues in the polyethylene resin of food contact materials and products.
This standard specifies the general principles of test, reagents and materials, equipment and instruments, sampling method and sample preparation methods, sample contact area, ratio between sample contact area and food simulant volume, sample cleaning and special treatment, test method, determination requirements of migration quantity, and result presentation requirements of the migration test pre-treatment method of food contact materials and their products.
This Standard specifies the basic requirements for the sites, facilities and equipment and personnel during acceptance, slaughter, cutting, packaging, storage and transportation of livestock and poultry and the management guidelines for hygienic control and operation during the slaughtering and processing of livestock and poultry.
This Standard specifies the fundamental technical requirements, model preparation methods and others of large This Standard specifies the allergenic ingredients in prepackaged foods. This Standard applies to the manufacturing, processing and sale of prepackaged foods.
s standard specifies the type, dimension, technical requirements, labeling and marking of the spiral wound gaskets for steel pipe flanges (PN designated). This standard is applicable to the spiral wound gaskets for steel pipe flanges specified in HG/T 20592 whose nominal pressure is PN16-PN160.
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