Download or read book GB T 41105 2 2021 Translated English of Chinese Standard GB T 41105 2 2021 GBT41105 2 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2022-09-30 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the method for checking the constancy of the X-ray system, mainly to check the constancy of the X-ray tube voltage and tube current, AND to check and evaluate the X-ray tube voltage and tube current changes, that may be caused by the aging of the X-ray tube anode target. The method, which is specified in this document, is to measure the dose rate, after defining a filter plate of certain thickness, based on the determined X-ray tube, the filter plate and the measuring device and the distance. The method, which is specified in this document, is very sensitive to tube voltage changes, BUT it cannot measure the absolute value of the X-ray tube voltage.

Download or read book GB T 41105 1 2021 Translated English of Chinese Standard GB T 41105 1 2021 GBT41105 1 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2022-09-30 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies a method, for directly and absolutely measuring the average high voltage, at the secondary side of the high-voltage generator of the X-ray system, at a constant potential (DC). It establishes the corresponding relationship, between checking the high-voltage output and the indicated value of the tube voltage, on the control unit of the X-ray system. This document is applicable to ensure the repeatable operation of X-ray systems. Tube voltage affects the penetration properties of materials AND the contrast of X-ray images. It also affects radiation protection related requirements.

Download or read book GB T 451 2 2002 Translated English of Chinese Standard GBT 451 2 2002 GB T451 2 2002 GBT451 2 2002 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2016-09-24 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies a method of determining the grammage of paper and board. This Standard applies to various papers and boards.

Download or read book GB T 41054 2021 Translated English of Chinese Standard GBT41054 2021 written by https://www.chinesestandard.net and published by www.ChineseStandard.net. This book was released on 2022-06-04 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the classification and performance levels, general requirements, raw materials, mixing proportions, quality requirements, preparation, test methods, inspection rules, ordering and delivery of high performance concrete. This Standard applies to high performance concrete for industrial and civil construction, municipal, railway, highway, water transportation, marine engineering, water conservancy, energy and other construction projects.

Download or read book GB T 40510 2021 Translated English of Chinese Standard GB T40510 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 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the technical requirements, test methods and inspections of bio-natural gas as vehicle fuel. This document applies to bio-natural gas as vehicle fuel whose pressure is not greater than 25 MPa (gauge pressure).

Download or read book GB T 5235 2021 Translated English of Chinese Standard GB T5235 2021 GBT5235 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2022-09-03 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the designation and chemical composition of wrought nickel and nickel alloy. This document applies to nickel and nickel alloy products produced by press working and to ingots and billets used therefor.

Download or read book GB T 40270 2021 Translated English of Chinese Standard GBT40270 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 general technical requirements based on consumer experience when using textile products. This Standard applies to end-use textile products for consumption and household products directly to consumers.

Download or read book GB T 41042 2021 Translated English of Chinese Standard GBT41042 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 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the scheme of content classification of valuable elements (aluminum, gallium, germanium, lithium, etc.) in coal and the related nomenclature and codes. It also puts forward the guiding principles for the development and utilization of valuable elements (aluminum, gallium, germanium, lithium, etc.) in coal.

Download or read book GB T 40219 2021 Translated English of Chinese Standard GBT40219 2021 written by https://www.chinesestandard.net and published by www.ChineseStandard.net. This book was released on 2021-09-03 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the terms and definitions, classification, requirements, test methods, inspection rules, markings, packaging, transportation, storage of Raman spectrometers. This standard applies to Raman spectrometers, which use laser as the excitation light source (hereinafter referred to as the instrument). The instruments, which use other light sources, may make reference to this standard.

Download or read book GB T 1232 3 2021 Translated English of Chinese Standard GB T 1232 3 2021 GBT1232 3 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-09-15 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document describes the method of determining the Delta Mooney value for non-pigmented, oil-extended emulsion-polymerized SBR. This document is applicable to the determination of the Delta Mooney value for non-pigmented, oil-extended emulsion-polymerized SBR.

Download or read book GB T 21255 2019 Translated English of Chinese Standard GBT 21255 2019 GB T21255 2019 GBT21255 2019 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-11-06 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part of GB/T 20671 specifies the principle, instruments and apparatuses, test samples, test procedures, test reports and precision of the method for determining the degree of influence on the physical properties of nonmetallic gasket materials after immersion in the test liquid. This Part applies to the determination of the liquid resistance of Type 1, Type 2, Type 3 and Type 7 materials which are described in GB/T 20671.1-2020.

Download or read book GB T GBT Product Catalog Translated English of Chinese Standard GB T GBT written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2018-01-01 with total page 2259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides the comprehensive list of Chinese National Standards - Category: GB/T; GBT.

Download or read book GB T 1682 2014 Translated English of Chinese Standard GBT 1682 2014 GB T1682 2014 GBT1682 2014 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-07-12 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard stipulates the method of adopting single test piece brittleness temperature testing machine to test vulcanized rubber brittleness temperature and judging whether vulcanized rubber is failed after being impacted at a stipulated temperature. The method includes two procedures: Procedure A is applicable to the test of brittleness temperature; Procedure B is applicable to the judgment of whether fail is caused after the impact at a stipulated temperature.

Download or read book GB T 40996 2021 Translated English of Chinese Standard GB T40996 2021 GBT 40996 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 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies terms and definitions, description requirements for basic information description of food contact materials and articles. This document applies to information collection, publication, exchange, storage and management on food contact materials and articles intended for direct consumer end-use.

Download or read book GB T 39897 2021 Translated English of Chinese Standard GBT 39897 2021 GB T39897 2021 GBT39897 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 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the terms and definitions, sample preparation, packaging, transportation, reception, pre-treatment and sampling methods, determination and result calculation, and test report of volatile organic compounds and aldehydes and ketones in nonmetallic parts of vehicles. This Standard is applicable to the sampling and determination of volatile organic compounds and aldehydes and ketones in nonmetallic components in the passenger compartment and luggage compartment of Category M1 and Category N1 vehicles. The other types of vehicles may take this as a reference.

Download or read book GB T 22796 2021 Translated English of Chinese Standard GBT22796 2021 written by https://www.chinesestandard.net and published by www.ChineseStandard.net. This book was released on 2022-06-04 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Document specifies the terms and definitions, requirements, test methods, inspection rules, marking, packaging, transportation and storage of beddings. This Document is applicable to beddings produced with textile fabrics as the surface and lining, with wadding fibers as fillings or without fillings. Other products can refer to it for the implementation.

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 22 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.