eBook PDF Download Digital Library
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
Published: 2023-07-26
Total Pages: 9
ISBN-13:
DOWNLOAD EBOOK →This document specifies a method for the determination of tap density, that is, the density of a powder after it has been tapped in a container under specified conditions.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
Published: 2021-04-17
Total Pages: 12
ISBN-13:
DOWNLOAD EBOOK →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.
Author: https://www.chinesestandard.net
Publisher: www.ChineseStandard.net
Published: 2021-06-30
Total Pages: 21
ISBN-13:
DOWNLOAD EBOOK →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.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
Published: 2021-05-02
Total Pages: 59
ISBN-13:
DOWNLOAD EBOOK →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.
Author: https://www.chinesestandard.net
Publisher: www.ChineseStandard.net
Published: 2021-06-30
Total Pages: 17
ISBN-13:
DOWNLOAD EBOOK →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.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
Published: 2021-05-02
Total Pages: 14
ISBN-13:
DOWNLOAD EBOOK →This document specifies the terms and definitions, working principle and main structure, requirements, test methods, inspection rules, marking, packaging, transportation and storage for on-site and rapid collection equipment of volatile organic compounds from furniture. This document applies to the on-site and rapid collection equipment of volatile organic compounds from furniture.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
Published: 2022-08-21
Total Pages: 8
ISBN-13:
DOWNLOAD EBOOK →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.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
Published: 2020-06-06
Total Pages: 22
ISBN-13:
DOWNLOAD EBOOK →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.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
Published: 2022-08-21
Total Pages: 12
ISBN-13:
DOWNLOAD EBOOK →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.
Author: https://www.chinesestandard.net
Publisher: www.ChineseStandard.net
Published: 2022-06-04
Total Pages: 11
ISBN-13:
DOWNLOAD EBOOK →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.
