Standard Test Method for Obtaining Char Density Profile of Ablative Materials by Machining and Weighing
STANDARD published on 1.8.2022
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Designation standards: ASTM E471-22
Publication date standards: 1.8.2022
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
This test method covers the determination of the char density profile of a charred ablator. The total thickness of the char and degradation zone must be larger than the machining thicknesses required. Density variation throughout a charred ablator material is determined by successively measuring, machining, and weighing a sample of known size to obtain the density of the material removed by machining. The apparatus required for this method includes a laboratory balance capable of measuring to the nearest ten thousandth gram, and a machining technique capable of removing material in increments as small as a thousandth mm.
Keywords:
ablation, char density, density profile ,, ICS Number Code 49.025.40 (Rubber and plastics)