1. Scope

1.1 This specification covers staple or continuous filament carbon/graphite yarn valve stem compression packing, suitable for use as end-rings on packing systems for valves. Intended services include steam, hydrocarbons, water and non-oxidizing chemicals. Where this specification is invoked as ASTM F 2191, Sections apply. Where this specification is invoked as ASTM/DoD F 2191, Sections and the Supplementary Requirements are applicable.

1.2 The values stated in SI units are to be regarded as the standard.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C135 Test Method for True Specific Gravity of Refractory Materials by Water Immersion

C561 Test Method for Ash in a Graphite Sample

C562 Test Method for Moisture in a Graphite Sample

C816 Test Method for Sulfur in Graphite by Combustion-Iodometric Titration Method

C889 Test Methods for Chemical and Mass Spectrometric Analysis of Nuclear-Grade Gadolinium Oxide (Gd2O3) Powder

D129 Test Method for Sulfur in Petroleum Products (General High Pressure Decomposition Device Method)

D512 Test Methods for Chloride Ion In Water

D1179 Test Methods for Fluoride Ion in Water

D1246 Test Method for Bromide Ion in Water

D3178 Test Methods for Carbon and Hydrogen in the Analysis Sample of Coal and Coke

D3684 Test Method for Total Mercury in Coal by the Oxygen BombCombustion/Atomic Absorption Method

D3761 Test Method for Total Fluorine in Coal by the Oxygen Bomb Combustion/Ion Selective Electrode Method

D3951 Practice for Commercial Packaging

D4239 Test Method for Sulfur in the Analysis Sample of Coal and Coke Using High-Temperature Tube Furnace Combustion

Keywords

Compression packing; Continuous filament carbon/graphite materials; End-rings; Graphite--specifications; Hydrocarbons; Nonoxidizing chemicals; Steam; Valve stem;

ICS Code

ICS Number Code 55.040 (Packaging materials and accessories)

DOI: 10.1520/F2191-02

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