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Standard Test Method for Viscosity of Cellulose by Cuprammonium Ball Fall
Automaticky preložený názov:
Štandardná skúšobná metóda pre Viskozita celulózy měďnatoamoniakálním loptu Fall
NORMA vydaná dňa 10.11.1997
Označenie normy: ASTM D6188-97
Poznámka: NEPLATNÁ
Dátum vydania normy: 10.11.1997
Kód tovaru: NS-34149
Počet strán: 7
Približná hmotnosť: 21 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
ball fall viscosity, cellulose, cuprammonium, DP, molecular weight, process control, viscosity
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1.1 This test method describes the procedure for estimating the molecular weight of cellulose by determining the viscosity of cuprammonium (CuAm) solutions of cellulosic materials, such as wood pulp, cotton and cotton linters. This test method is suitable for rapid, routine testing of large numbers of samples with accuracy and precision. This test method updates and extends the procedure reported by the American Chemical Society (ACS). 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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