ASTM F2168-13
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Summary
1.1 Scope—This specification covers various types, classes, and grades of flexible graphite material in which valve media temperatures are limited to a maximum of 966°C. Where this specification is invoked as ASTM F2168, Sections 1 – 18 apply. Where this specification is invoked as ASTM/DoD F2168, Sections 1 – 18 and the Supplementary Requirements apply.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
Rationale:
This specification covers various types, classes, and grades of flexible graphite material in which valve media temperatures are limited to a maximum temperature. The material shall be classified into two types, classes, and grades. Type I is a corrugated ribbon or textured tape, Type II is die-formed ring. Class 1 is for use where detrimental material content of the packing need not be controlled beyond normal manufacturing limit and Class 2 is for use where detrimental material content must be controlled to the limits specified herein. Grade A is treated with corrosion inhibitor and Grade B not treated with corrosion inhibitor. Different tests and measurements shall be conducted in order to determine the following properties: size, bulk density, ash content, and graphite purity.
Technical characteristics
| Publisher | American Society for Testing and Materials (ASTM International) |
| Publication Date | 10/01/2013 |
| Collection | |
| Page Count | 7 |
| Themes | Packaging materials and accessories |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
Replaces
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