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Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
Automatische name übersetzung:
Standard Test Method for Color of Liquids Verwendung Tristimulus Colorimetry
NORM herausgegeben am 1.1.2010
Bezeichnung normen: ASTM D5386-10
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.1.2010
SKU: NS-30976
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
APHA, Hazen, hydrocarbons, instrumental color measurement, Pt-Co, platinum-cobalt, tristimulus, Color--paints/related coatings/materials, Equivalent visual color ratings, Hydrocarbons, Instrumental measurement--color/light, Platinum-cobalt scale, Tristimulus value, ICS Number Code 71.080.01 (Organic chemicals in general)
Significance and Use | ||||||||||||||||||||||||||
The major objective of the visual platinum-cobalt (Pt-Co) method of color measurement, as defined in Test Method D1209, is to rate specific materials for yellowness. This yellowness is frequently the result of the undesirable tendency of liquid hydrocarbons to absorb blue light due to contamination in processing, storage or shipping. Clear liquids can be rated for light absorbing yellowish or brownish contaminants, using scales that simulate the long-established visual-comparison method just cited. Where needed, dimensions of color can be reported to identify any pinkness or greenness (one dimension), or grayness. |
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1. Scope | ||||||||||||||||||||||||||
1.1 This test method covers an instrumental method for the CIE (Commission International de l'Eclairage) tristimulus measurement of the color of near-clear liquid samples. The measurement is converted to color ratings in the platinum-cobalt system. 1.2 This test method has been found applicable to the color measurement of clear, liquid samples, free of haze, with nominal platinum cobalt color values in the 0 to 100 range. It is applicable to nonfluorescent liquids with light absorption characteristics similar to those of the platinum cobalt color standard solutions. Test Methods D1686, D2108, and deal with the visual and instrumental measurement of near-clear liquids. 1.3 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded in accordance with the rounding off methods of Practice E29. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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 hazard statements, see Section 8. |
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2. Referenced Documents | ||||||||||||||||||||||||||
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Historisch
1.4.2009
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1.4.2012
Historisch
15.6.2012
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1.11.2012
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1.11.2012
Historisch
1.12.2012
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