ASTM International

Standard Test Method for Solubility of Cellulose in Sodium Hydroxide
 N D1696

Annotation

This test method2 is intended for application to dissolving-type cellulose pulps prepared from cotton or wood. The procedure is not directly applicable to unrefined pulps for use in chemical conversion processes because solubility equilibrium may not be attained within the specified extraction time.

The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2 This test method is an adaptation of the method designated CCA 8:55 by the Analysis Committee of the Central Committee of the Cellulose Industry of the Swedish Association of Pulp and Paper Engineers. This test method is also comparable with the TAPPI Tentative Standard T 235 m-58, Solubility of Pulp in Cold Sodium Hydroxide.

Автоматический перевод:

Стандартный метод испытаний для растворимости целлюлозы в гидроксиде натрия

Этот тест method2 предназначается для применения к мякоти целлюлозы растворяющего типа, подготовленной от хлопка или древесины. Процедура не непосредственно применима к неочищенной мякоти для использования в химических конверсионных процессах, потому что равновесие растворимости не может быть достигнуто в течение указанного времени извлечения.