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ASTM D4659-14

Заменен
Standard Test Methods for Polyurethane Raw Materials: Determination of Specific Gravity of Isocyanates — 4 стр.
Значение и использование

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.

Область применения

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 7.

Note 1There is no known ISO equivalent to this standard.
ICS
83.040.30 Auxiliary. Including fillers, extenders, hardeners, pigments, plasticizers, etc. / Вспомогательные материалы и добавки для пластмасс. Включая наполнители, разбавители, отвердители, пигменты, пластификаторы и т.д.
83.080.20 Thermoplastic materials / Термопластические материалы
Сборник ASTM
08.02 Plastics (II): D3222–D5083 / Пластмасса (II): D3222–D5083
Тематика
Plastics