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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
STANDARD published on 15.12.2005
The information about the standard:
Designation standards: ASTM D7133-05
Note: WITHDRAWN
Publication date standards: 15.12.2005
SKU: NS-37636
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM D7133-05 :
Keywords:
CIELAB, color, colormetric analysis, instrumental measurement, isocyanates, L*a*b*, light, polyols, polyurethane raw materials, polyurethanes, spectrophotometry, transmission, tristimulus, yellowness index, YI, ICS Number Code 83.080.20 (Thermoplastic materials)
Additional information
| 1. Scope | ||||||||||||||
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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 1There is no equivalent ISO standard. |
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| 2. Referenced Documents | ||||||||||||||
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