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ASTM D4662-08(2011)e1
Standard Test Methods for Polyurethane Raw Materials: Determination of Acid and Alkalinity Numbers of Polyols (Includes all amendments And changes 9/10/2015).
Automaticky přeložený název:
Standardní zkušební metody pro Polyuretanové Suroviny: Stanovení kyseliny a alkalické Počty polyolů
NORMA vydána dne 1.2.2011
Informace o normě:
Označení normy: ASTM D4662-08(2011)e1
Poznámka: NEPLATNÁ
Datum vydání normy: 1.2.2011
Kód zboží: NS-28078
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM D4662-08(2011)e1 :
Keywords:
acidity, acid number, alkalinity number, polyols, acidity, acid number, alkalinity number, polyols, Polyurethane raw materials--polyols, Reactivity, Titration, Acidity, alkalinity, pH--plastics, Acid number, Alkalinity, Batch-to-batch uniformity, Correction factors, Hydroxyl numbers, Polyols, ICS Number Code 83.040.30 (Auxiliary materials and additives for plastics), 83.080.20 (Thermoplastic materials)
Doplňující informace
| Significance and Use | ||||
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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 may be used as correction factors in calculating hydroxyl number. |
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| 1. Scope | ||||
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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. |
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| 2. Referenced Documents | ||||
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