Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 13
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Book Description
This document specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, accompanying documents, purchase orders for hot-rolled titanium and titanium alloy seamless tubes. This document is applicable to general industrial hot-rolled titanium and titanium alloy seamless tubes, which are produced by the cross-rolling piercing and rolling process.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 11
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Book Description
This Document specifies the cross-sectional shape, size and tolerance, appearance and weight of titanium and titanium alloy bars and wires. This Document is applicable to titanium and titanium alloy wires with a diameter of 0.1mm~7.0mm (hereinafter referred to as wire); titanium and titanium alloy round bars with a diameter of greater than 7.0mm~450.0mm (hereinafter referred to as round bars); titanium and titanium alloy square bars with the side length of 30.0mm~450.0mm (hereinafter referred to as square bars); titanium and titanium alloy rectangular bars with a thickness of 25.0mm~204.0mm and a width of 25.0mm~254.0mm.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 14
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Book Description
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
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 59
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Book Description
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: https://www.chinesestandard.net
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 11
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Book Description
This document specifies the terms and definitions, principle, reagents or materials, equipment, test procedure, and test data processing of the test method for the rapid determination in the field for volatile organic compounds in furniture components. This document is applicable to the rapid determination in the field of volatile organic compounds in furniture components, whose maximum side length does not exceed 800 mm and height does not exceed 300 mm.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 31
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Book Description
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.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 8
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Book Description
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
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 15
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Book Description
This Standard specifies terms and definitions, classification and codes, dimensions, appearance, weight, technical requirements, test methods, inspection rules, packaging, marks and quality certificates for hot dip coating steel sheet and strip for corrugated pipe. This Standard is applicable to the hot dip coating steel sheet and strip, with a thickness of 0.7mm~10mm, for corrugated steel structure that is used in the production of pipe networks, culverts, underground water storage tanks, pedestrian walkways, underpasses for automobiles, public pipe corridors and special-shaped structures installed on site.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 14
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Book Description
This document specifies the technical requirements, operation requirements, inspection methods, inspection rules, marking, packaging, transportation and storage of high pressure metal die casting units. This document applies to high pressure metal die casting units, including die casting machine and its auxiliary devices, such as heat preservation and pouring device, picking and conveying device, spraying device, mold temperature control device, cleaning and repairing device, inserting device, detection device, system safety device, collection, discharge, dust removal device, vacuum device, marking device, integrated control device, but not limited to the above devices. It applies to low-pressure casting, squeeze casting and other casting units as reference.
Author: https://www.chinesestandard.net
Publisher: https://www.chinesestandard.net
ISBN:
Category : Science
Languages : en
Pages : 22
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Book Description
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.
