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Normas ASTM – AENOR
ASTM D6605-06(2020)

ASTM D6605-06(2020)

Standard Practice for Determining the Color Stability of Hydrocarbon Resins After Heating

Fecha:
2020-07-03 /Active
Significance and Use:

5.1 This practice is useful for both quality control and research.

Scope:

1.1 This practice covers determination of the color stability of a hydrocarbon resin by exposure to a specific temperature for a defined time period in a forced-draft oven.

1.2 Color stability is measured by the change in color of the test resin, measured via the yellowness index color scale, in accordance with Practice E313, or the procedure for Gardner Color, Test Method D6166.

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords:
color stability; Gardner color; hydrocarbon resins; yellowness index, (YI);
38,23
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