ASTM D6188 Standard Test Method for Viscosity of Cellulose by Cuprammonium Ball Fall
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ASTM International
Standard Test Method for Viscosity of Cellulose by Cuprammonium Ball Fall
N D6188
Annotation
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 high accuracy and precision. This test method updates and extends the procedure reported by the American Chemical Society (ACS)2.
The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
2 Carver et al., "A Standard Method for Determining the Viscosity of Cellulose in Cuprammonium Hydroxide," Industrial and Engineering Chemistry, Analytical Edition, Vol 1, No 1, 1929, pp. 49-51.
Автоматический перевод:
Стандартный метод испытаний для вязкости целлюлозы медноаммиачным падением мяча
Этот метод испытаний описывает процедуру для оценки молекулярной массы целлюлозы путем определения вязкости медноаммиачных растворов (CuAm) целлюлозных материалов, таких как древесная масса, хлопок и хлопковые линтеры. Этот метод испытаний подходит для быстрого, обычного тестирования больших количеств образцов с высокой точностью и точностью. Этот метод испытаний обновляет и расширяет процедуру, о которой сообщает Американское химическое общество (ACS) 2.
