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  2. ASTM International - Wikipedia

    en.wikipedia.org/wiki/ASTM_International

    Website. www.astm.org. ASTM International, formerly known as American Society for Testing and Materials, is a standards organization that develops and publishes voluntary consensus technical international standards for a wide range of materials, products, systems and services. Some 12,575 apply globally.

  3. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    This is an accepted version of this page This is the latest accepted revision, reviewed on 23 September 2024. Portable Document Format, a digital file format For other uses, see PDF (disambiguation). Portable Document Format Adobe PDF icon Filename extension.pdf Internet media type application/pdf, application/x-pdf application/x-bzpdf application/x-gzpdf Type code PDF (including a single ...

  4. Steel grades - Wikipedia

    en.wikipedia.org/wiki/Steel_grades

    The number is in the following format: x.yyzz(zz) Where x is the material type (only 1 is specified so far), yy is the steel group number (specified in EN10027-2) and zz(zz) is a sequential number designated by the certifying body, the number in brackets being unused but reserved for later use.

  5. National Standards of the People's Republic of China

    en.wikipedia.org/wiki/National_Standards_of_the...

    Besides the national standard repository, China allows the registration of standards by industry/trade, by localities (DB, Dìfāng Biāozhǔn, "local standard"), by associations (T), or by an individual company (Q). The overall prefix number-year format is retained. [6]

  6. List of EN standards - Wikipedia

    en.wikipedia.org/wiki/List_of_EN_standards

    EN 1069: Water slides of 2 m height and more. EN 1078: Helmets for pedal cyclists and for users of skateboards and roller skates. EN 1090: Execution of steel structures and aluminium structures (3 parts) EN 1092: Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated.

  7. List of IEC standards - Wikipedia

    en.wikipedia.org/wiki/List_of_IEC_standards

    IEC 60642 Piezoelectric ceramic resonator units. IEC 60644 Specification for high-voltage fuse-links for motor circuit applications. IEC 60645 Electroacoustics – Audiometric equipment. IEC 60648 Method of test for coefficients of friction of plastic film and sheeting for use as electrical insulation.

  8. SAE steel grades - Wikipedia

    en.wikipedia.org/wiki/SAE_steel_grades

    SAE steel grades. The SAE steel grades system is a standard alloy numbering system (SAE J1086 – Numbering Metals and Alloys) for steel grades maintained by SAE International. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels.

  9. Document file format - Wikipedia

    en.wikipedia.org/wiki/Document_file_format

    A document file format is a text or binary file format for storing documents on a storage media, especially for use by computers. There currently exist a multitude of incompatible document file formats. Examples of XML -based open standards are DocBook, XHTML, and, more recently, the ISO / IEC standards OpenDocument (ISO 26300:2006) and Office ...