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ASTM D6657-01(2006)
Standard Test Method for pH of Wet Blue
2 стр.
Заменен
Электронный (pdf)Печатное издание
84.24 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
59.140.10 Processes and auxiliary materials / Процессы и вспомогательные материалы
Сборник (ASTM):
15.04 Soaps and Other Detergents; Polishes; Leather; Resilient Floor Coverings / Мыло и другие моющие средства; Полировальные материалы; Кожа; Эластичные покрытия для полов
Тематика:
Leather
Описание
Значение и использование

This test method is designed to measure the pH of a distilled-water extract of wet blue. This is considered to be a measure of the acidity or alkalinity of the wet blue. Excessive acidity or alkalinity may have a deleterious effect on the aging characteristics of wet blue and the leather made from it.

This test method is suitable for development, control, and service evaluation of wet blue.

Область применения

1.1 This test method covers the determination of the pH of all types of wet blue.

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.

Ключевые слова:
acidity; alkalinity; blue stock; Delta pH; pH; pH difference; wet blue