Potřebujeme váš souhlas k využití jednotlivých dat, aby se vám mimo jiné mohly ukazovat informace týkající se vašich zájmů. Souhlas udělíte kliknutím na tlačítko „OK“.
Standard Test Methods for Polyurethane Raw Materials: Determination of Acid and Alkalinity Numbers of Polyols
Automaticky přeložený název:
Standardní zkušební metody pro Polyuretanové surovin: Stanovení kyseliny a zásaditost Počty polyolů
NORMA vydána dne 1.9.2015
Označení normy: ASTM D4662-15
Poznámka: NEPLATNÁ
Datum vydání normy: 1.9.2015
Kód zboží: NS-615034
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
acidity, acid number, alkalinity number, polyols, acidity, acid number, alkalinity number, polyols,, ICS Number Code 83.040.30 (Auxiliary materials and additives for plastics), 83.080.20 (Thermoplastic materials)
Significance and Use | ||||
5.1 These test methods are suitable for quality control, as specification tests, and for research. The acid and alkalinity numbers indicate the extent of a reaction with acids. The results are measures of batch-to-batch uniformity and are typically used as correction factors in calculating hydroxyl number. |
||||
1. Scope | ||||
1.1 These test methods measure the acidic and basic constituents in polyols and other materials of high acidity or alkalinity that are soluble in mixtures of toluene and ethyl alcohol. These test methods do not apply to polyethers. (See Note 1.) 1.2 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. Note 1: There is no known ISO equivalent to this
standard.
|
||||
2. Referenced Documents | ||||
|
Poslední aktualizace: 25.04.2024 (Počet položek: 2 896 007)
© Copyright 2024 NORMSERVIS s.r.o.