Gb T 5796 2 2022 Translated English Of Chinese Standard Gb T5796 2 2022 Gbt 5796 2 2022

This document specifies the diameter and pitch combination series of trapezoidal screw threads, and the profiles conform to the provisions of GB/T 5796.1. This document applies primarily to mechanical transmission screw threads, and may also be used for fastening screw threads.

This document specifies the basic profile and design profile of trapezoidal screw threads. This document applies primarily to mechanical transmission threads and may also be used for fastening threads.

This document specifies the methods of the cutting, preparation and determination of free cementite, pearlite and Widmanstaten structure specimens in steel. This document is applicable to the determination of free cementite, pearlite and Widmanstaten structure in low-carbon and medium-carbon steel plates, steel strips and steel rods (billets). For other steel types, this document may be taken as a reference.

This document specifies the material and physical property requirements for non-strippable low density polyethylene film for wrapping natural rubber bales. The function of the film is to keep the bales separated from each other during transportation and storage. This document applies to each bale of block natural rubber of 33.3 kg or 35 kg; as well as to each bale of rubber ribbed smoked sheets of 33.3 kg, 35 kg, 50 kg, and 111.11 kg; or any other bale weights as mutually agreed between the relevant parties.

This document specifies the method of using the DC four-point probe method for the determination of the electrical resistivity and conductivity of liquid metals. This document is applicable to the determination of electrical resistivity and conductivity of liquid metals within the range from room temperature to 300 ?C.

This document specifies the methods and conditions for the specimen preparation and properties determination of polypropylene (PP) molding and extrusion materials. This document also specifies the requirements for the pre-treatment of test materials and the conditioning of specimens before testing. This document lists properties and test methods suitable and necessary for characterizing polypropylene (PP) molding and extrusion materials. These properties are selected from the general test methods of GB/T 19467.1. This document also lists other test methods extensively applied or of special significance for molding and extrusion materials, as well as the determination methods of the properties designation in Part 1. In order to ensure that the test results are reproducible and repeatable, it is necessary to use the methods of specimen preparation and conditioning specified in this document, as well as the specified specimen sizes and test methods. The test data obtained using specimens prepared under different conditions or using specimens of different sizes may not be consistent.

This document specifies the acceptance rules for steel tubular products as well as the technical requirements for packaging, marking and quality certificates. This document applies to acceptance rules for steel tubular products and general requirements for packaging, marking and quality certificates. When there are special provisions in product standards, follow the provisions of product standards.

This document specifies the terms and definitions, classification and designation representation method, order content, dimension, shape, weight, technical requirements, test methods, inspection rules, package, mark and certification of continuously hot rolled high-strength high hole expansion steel sheet and strip for automobile. This document applies to continuously hot rolled steel strips with high hole expansion property with a thickness of not more than 6.0 mm, steel sheets cross-cut from them, and longitudinally-cut steel strips.