ASTM E 471–96 Obtaining Char Density Profile of Ablative Materials by Machining and Weighing
ASTM E 471 – 96 explains the determination of the char density profile of a charred ablator. This technique involves measuring, machining, and weighing a sample of a specific size to determine its density. Therefore, the sample should be strong enough to withstand all the techniques employed. Its value is stated in SI units.
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