Download or read book GB T 8361 2021 Translated English of Chinese Standard GBT8361 2021 written by https://www.chinesestandard.net and published by www.ChineseStandard.net. This book was released on 2021-06-30 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the testing principles, testing methods, qualifications of testing personnel, testing equipment and device, testing implementation, comparison samples, testing results evaluation, testing records and testing reports, etc. of the ultrasonic testing for the surface of cold-drawn round steel. This document is applicable to ultrasonic testing of longitudinal discontinuities on the surface and near surface of cold drawn round steel with a diameter of 6mm~80mm. The ultrasonic testing of other round steel processed into silver shiny surface after hot rolling can also refer to this document.

Download or read book GB T 8361 2001 Translated English of Chinese Standard GBT 8361 2001 GB T8361 2001 GBT8361 2001 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2016-04-30 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies principle of cold drawn round steel surface ultrasonic inspection, test method, control sample, inspection equipment, and inspection condition; inspect procedure, result of detection assessment and report.

Download or read book GB T 39788 2021 Translated English of Chinese Standard GBT 39788 2021 GB T39788 2021 GBT39788 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2021-05-02 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the test process, test requirement model, test types for the performance of system and software. This standard applies to the analysis, design, execution of performance testing for system and software.

Download or read book GB T 15055 2021 Translated English of Chinese Standard GB T15055 2021 GBT 15055 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2022-08-21 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies linear and angular dimension tolerance grades and limit deviations of stamping pieces without tolerance indication. This document applies to metal stamping pieces. Non-metal stamping pieces may refer to this document. The limit deviations specified in this document apply to non-fitted dimensions.

Download or read book GB T 798 2021 Translated English of Chinese Standard GB T 798 2021 GBT798 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2022-10-08 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the types, dimensions, technical conditions and designation of eye bolts. This document is applicable to eye bolts with the thread specification of M5 ~ M39 and the product grade of Grade-A, Grade-B and Grade-C.

Download or read book GB T 8 2021 Translated English of Chinese Standard GB T8 2021 GBT 8 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2022-08-21 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the types, dimensions, technical conditions, and marking of square head bolts. This document is applicable to square head bolts with thread specifications of M10~M48 and product grade C.

Download or read book GB T 9441 2021 Translated English of Chinese Standard GBT9441 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-06-06 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Document specifies the nodularity calculation, metallographic sample preparation, inspection rules, inspection items and rating charts, result representation and inspection report of spheroidal graphite cast iron. This Document specifies the methods for evaluating the microstructure of spheroidal graphite cast iron by visual method and evaluating the nodularity of spheroidal graphite cast ion by computer image analysis software.

Download or read book GB T 31838 7 2021 Translated English of Chinese Standard GBT31838 7 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-06-06 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the test methods for the volume resistance and volume resistivity of insulating materials, under DC voltage and temperature not higher than 800 degree-Celcius. This document applies to high-temperature resistant mica plates, alumina ceramics and other materials.

Download or read book GB T 40934 2021 Translated English of Chinese Standard GB T 40934 2021 GBT40934 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-09-16 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Document specifies test methods for the flowability of powders for rotational molding. This Document applies to free-flowing powder materials for rotational molding, with particle size D98¡Ü1mm, and apparent density Da¡Ý0.21g/mL.

Download or read book GB T 39560 702 2021 Translated English of Chinese Standard GBT39560 702 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-06-06 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part of GB/T 39560 specifies the method for quantitative detection of hexavalent chromium [Cr (VI)] in polymer and electronic samples. The determination method in this Part uses an organic solvent to dissolve or swell the sample matrix, and then uses an alkaline digestion procedure to extract hexavalent chromium from the sample. Studies have shown that for the extraction of hexavalent chromium from soluble and insoluble samples, organic/alkaline solutions are more effective than acidic solutions. Under the condition of alkaline solution, the reduction of hexavalent chromium to trivalent chromium or the oxidation of trivalent chromium to hexavalent chromium is the least.

Download or read book GB T 31016 2021 Translated English of Chinese Standard GBT31016 2021 written by https://www.chinesestandard.net and published by www.ChineseStandard.net. This book was released on 2021-06-30 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the related terms and definitions, classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of mobile laboratory of sample collection and treatment. This Standard is applicable to land-use mobile laboratories that handle sample collection and treatment of primary agricultural products, processed food, water quality, medicines, pesticides, feedstuffs and chemical products, etc.

Download or read book GB T 28796 2021 Translated English of Chinese Standard GBT28796 2021 written by https://www.chinesestandard.net and published by www.ChineseStandard.net. This book was released on 2022-06-04 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the terms and definitions, requirements, test methods, inspection rules, marking, packaging, transportation and storage for craft crystal decoration. This Standard applies to craft crystal decoration that takes synthetic crystal, crystal glass and natural crystal as the main raw materials.

Download or read book GB T 22271 1 2021 Translated English of Chinese Standard GBT22271 1 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-06-06 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies a designation system for thermoplastic polyoxymethylene (POM) molding and extrusion materials. This designation system can serve as a basis for classification. Note: The polyoxymethylene material is a thermoplastic material, which is mainly composed of long chains of homopolymers and copolymers, as synthesized from formaldehyde. The repeating unit in the molecular chain is -CH2O-, which is an integral part of the main polymer chain as produced by the polymerization of formaldehyde.

Download or read book GB T 40861 2021 Translated English of Chinese Standard GB T40861 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2021-11-05 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Document specifies the protected objects and technical requirements of vehicle cybersecurity. This Document is applicable to M and N categories of vehicles, their electrical and electronic systems and components.

Download or read book GB T 40029 2021 Translated English of Chinese Standard GBT40029 2021 written by https://www.chinesestandard.net and published by www.ChineseStandard.net. This book was released on 2021-06-30 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the terms and definitions, symbols, codes and marks, order content, technical requirements, test methods, inspection rules, packaging, labeling, transportation, storage and quality certificates for steel strand for prestressed concrete of LNG. This Standard is applicable to the steel strand used in prestressed concrete structure of liquefied natural gas storage tank engineering, and other low temperature environments.

Download or read book GB T 39836 2021 Translated English of Chinese Standard GBT 39836 2021 GB T39836 2021 GBT39836 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2021-04-17 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the determination method, test device, test instrument and method, data processing and calculation method for slagging indexes in coal combustion. This document is applicable to the determination for slagging indexes of power coal products such as power station boilers and industrial boilers. Applicable coal types are lignite, bituminous coal and anthracite (excluding coal with a total content of Na2O and K2O greater than 3% in coal ash).

Download or read book GB T 39962 2021 Translated English of Chinese Standard GBT 39962 2021 GB T39962 2021 GBT39962 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2021-04-17 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the terms and definitions, energy consumption test and calculation, energy efficiency rating, energy saving indicator, labeling of energy efficiency grade, and parameter description for energy efficiency limits and energy efficiency rating of cold-chamber and hot-chamber die casting machines. This document is applicable to the energy consumption determination and energy efficiency rating of cold-chamber and hot-chamber die casting machines.