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Standard Test Method for Carbon Black Extractables - Absorbance of Cyclohexane Extract
Name übersetzen
NORM herausgegeben am 1.12.2019
Bezeichnung normen: ASTM D7772-15(2019)
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.12.2019
SKU: NS-980105
Zahl der Seiten: 3
Gewicht ca.: 9 g (0.02 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
absorbance, carbon black, cyclohexane extinction, UV spectrophotometer,, ICS Number Code 83.040.20 (Rubber compounding ingredients)
Significance and Use | ||
4.1 This procedure serves as a screening process for carbon blacks used in the manufacturing of products that are to come into contact with food. The cyclohexane extract absorbance at 386 nm must be less than 0.10 for a 50 mm cuvette in order to fulfill various regulatory requirements. |
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1. Scope | ||
1.1 This method covers the determination of extinction (absorbance) of carbon black cyclohexane extract at 386 nm using a UV spectrophotometer. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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. |
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2. Referenced Documents | ||
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