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ASTM D7133-05
Standard Test Method for Polyurethane Raw Materials: Instrumental Measurement of Tristimulus CIELAB Color and Yellowness Index of Liquids
4 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
83.080.20 Thermoplastic materials / Термопластические материалы
Сборник (ASTM):
08.03 Plastics (III): D5117 – latest; Reinforced Plastic Piping Systems and Chemical Equipment; Plastic Building Products / Пластмасса (III): D5117 – и далее; Армированные пластиковые трубопроводные системы и химическое оборудование; Пластмассовые строительные изделия
Тематика:
Plastics
Описание
Область применения

1.1 This test method provides an instrumental method for measuring the CIELAB color and Yellowness Index (YI) of liquid polyurethane raw materials. The CIELAB and YI results are derived from mathematical manipulation of CIE tristimulus values in accordance with Practices E 308 and E 313, respectively.

1.2 See Section 5 for cautions in using this test method.

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.

Note 1

There is no equivalent ISO standard.

Ключевые слова:
CIELAB; color; colormetric analysis; instrumental measurement; isocyanates; L*a*b*; light; polyols; polyurethane raw materials; polyurethanes; spectrophotometry; transmission; tristimulus; yellowness index; YI