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ASTM D6657-14a
Standard Test Method for pH of Wet Blue (Includes all amendments And changes 12/5/2014).
Automaticky přeložený název:
Standardní zkušební metoda pro pH wet blue
NORMA vydána dne 1.5.2014
Informace o normě:
Označení normy: ASTM D6657-14a
Poznámka: NEPLATNÁ
Datum vydání normy: 1.5.2014
Kód zboží: NS-36044
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM D6657-14a :
Keywords:
acidity, alkalinity, blue stock, Delta pH, pH, pH difference, wet blue, wet white, ICS Number Code 59.140.10 (Processes and auxiliary materials)
Doplňující informace
| Significance and Use | ||||||
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4.1 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. 4.2 This test method is suitable for development, control, and service evaluation of wet blue. |
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| 1. Scope | ||||||
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1.1 This test method covers the determination of the pH of all types of wet blue and wet white. 1.2 For pH of wet white, the procedure is identical, substitute wet white for wet blue in the standard method. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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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| 2. Referenced Documents | ||||||
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