ASTM D4218 – Standard Test Method for Determination of Carbon Black Content in Polyethylene Compounds by the Muffle-Furnace Technique
Description:
Significance and Use
5.1 This test method is capable of yielding duplicate test data, in 20 min or less, for a simple carbon black content determination.
5.2 This test method is suitable for manufacturing quality control, technical service, and research work.
5.3 For referee requirements, the number of replicate measurements is increased. Alternatively, a control sample of known carbon black content is tested with the unknown sample.
5.4 Test Method D1603 is available for referee testing.
Scope
1.1 This test method covers the determination of black polyethylene compounds containing channel or furnace black. It is not applicable to thermal black.
1.2 This test method is not suitable for plastics that char on pyrolysis.
1.3 The values stated in SI units are to be regarded as the standard.
ASTM D4214