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ASTM C22/C22M-00(2021)
Standard Specification for Gypsum
NORMA vydaná dňa 1.4.2021
Informácie o norme:
Označenie normy: ASTM C22/C22M-00(2021)
Dátum vydania normy: 1.4.2021
Kód tovaru: NS-1024044
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM C22/C22M-00(2021) :
This specification covers gypsum, calcium sulfate combined with two molecules of water in crystalline form. If necessary, gypsum shall be crushed or ground, or both, to the size specified. Different test methods shall be performed in order to determine the chemical composition and physical properties of gypsum.
Keywords:
calcium sulfate, gypsum ,, ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
Doplňujúce informácie
| 1. Scope | ||||||
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1.1?This specification covers gypsum, calcium sulfate combined with two molecules of water in crystalline form and having the approximate chemical formula CaSO4?2H2O. 1.2?The values stated in either inch-pound units or SI (metric) are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system shall be used independently of the other. Values from the two systems shall not be combined. 1.3?The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification. 1.4?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||
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