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 nonoxidizing chemicals. Where this specification is invoked as ASTM F2191/F2191M, Sections 1 – 18 apply. Where this specification is invoked as ASTM/DoD F2191/F2191M, Sections 1 – 18 and the Supplementary Requirements shall be applicable.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM F2191/F2191M-13(2020)e1 Referenced Document
ASTM C135 Standard Test Method for True Specific Gravity of Refractory Materials by Water Immersion*, 2022-02-01 Update
ASTM C561 Standard Test Method for Ash in a Graphite Sample
ASTM C562 Standard Test Method for Moisture in a Graphite Sample
ASTM C816 Standard Test Method for Sulfur in Graphite by Combustion-Iodometric Titration Method
ASTM C889 Standard Test Methods for Chemical and Mass Spectrographic Analysis of Nuclear-Grade Gadolinium Oxide (Gd2O3) Powder
ASTM D1179 Standard Test Methods for Fluoride Ion in Water
ASTM D1246 Standard Test Method for Bromide Ion in Water
ASTM D129 Standard Test Method for Sulfur in Petroleum Products (General Bomb Method)
ASTM D3178 Standard Test Methods for Carbon and Hydrogen in the Analysis Sample of Coal and Coke
ASTM D3684 Standard Test Method for Total Mercury in Coal by the Oxygen Bomb Combustion/Atomic Absorption Method
ASTM D3761 Standard Test Method for Total Fluorine in Coal by the Oxygen Bomb Combustion/Ion Selective Electrode Method
ASTM D3951 Standard Practice for Commercial Packaging
ASTM D4239 Standard Test Methods for Sulfur in the Analysis Sample of Coal and Coke Using High Temperature Tube Furnace Combustion Methods
ASTM D512 Standard Test Methods for Chloride Ion In Water