Lab Services: Geosynthetic testing

Lab Services: Geosynthetic testing

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Test Method Title

Standard Test Method for Determination of Carbon Black Content in Polyethylene Compounds By the Muffle-Furnace Technique

Reference Number

ASTM D4218

Material

Geomembrane

Test Property

percent carbon black content

Description of Test

Black polyethylene compound contained in a disposable aluminum weighing dish is pyrolyzed in a muffle furnace for a short period. During the pyrolysis of the polymer, the air in the muffle furnace becomes oxygen-deficient to prevent the combustion of the residual carbon black. After cooling and weighing for residual carbon black, the dish and contents may be reinserted into the muffle furnace to determine ash content and the results used to determine true carbon black content.

Preferred Test Sample Size

3' x roll width

Number of Test Specimens

2

Test Specimen Size

5-10 mg

Keywords

carbon, black, cbc

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224.676.1371


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