Cookies
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“.
ASTM D4659-14
Standard Test Methods for Polyurethane Raw Materials: Determination of Specific Gravity of Isocyanates
Automaticky přeložený název:
Standardní zkušební metody pro Polyuretanové Suroviny: Stanovení měrné hmotnosti Izokyanáty
NORMA vydána dne 1.3.2014
Informace o normě:
Označení normy: ASTM D4659-14
Poznámka: NEPLATNÁ
Datum vydání normy: 1.3.2014
Kód zboží: NS-28065
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM D4659-14 :
Keywords:
density, hydrometer, isocyanates, polyurethane raw materials, pycnometer, specific gravity, ICS Number Code 83.040.30 (Auxiliary materials and additives for plastics), 83.080.20 (Thermoplastic materials)
Doplňující informace
| Significance and Use | ||||||||||||||
|
4.1 These test methods can be used for research or for quality control to characterize isocyanates used in polyurethane products. 4.2 A general test method for specific gravity using a digital density meter, which applies to isocyanates as well as other liquids is published in Test Method D4052. |
||||||||||||||
| 1. Scope | ||||||||||||||
|
1.1 These test methods determine the specific gravity of toluenediisocyanate and crude methylene-bis-(4-phenylisocyanate). These test methods also are applicable to many other liquids. (See Note 1.) 1.1.1 Test Method A—Specific gravity by pycnometer, for high-accuracy determination. 1.1.2 Test Method B—Specific gravity by hydrometer, for a less accurate, but rapid, determination. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. For
specific warning and precautionary statements see Section
Standard Test Methods for Analysis of
Ethylene Glycols and Propylene Glycols Standard Specification for ASTM
Hydrometers Standard Test Method for Density,
Relative Density, and API Gravity of Liquids by Digital Density
Meter Standard Terminology Relating to
Plastics Standard Specification for
Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision
Liquids Standard Specification for Reagent
Water Standard Test Methods for Specific
Gravity, Apparent, of Liquid Industrial Chemicals |
Doporučujeme:
