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Standard Test Method for Fiber Cohesion in Roving, Sliver, and Top in Dynamic Tests
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Standard number:
ASTM D4120-07R24
Released:
01.11.2024
Status:
Active
Pages:
3
Section:
07.01
Keywords:
fiber cohesion; textile strand ;
ASTM number:
ASTM D4120
Supersedes:
D4120-07R18
DESCRIPTION
1.1 This test method describes the measurement of fiber cohesion as the dynamic cohesive force required to maintain drafting in rovings, slivers or tops when they are subjected to stress induced by passing between pairs of drafting rolls of different surface speeds. The cohesive force is converted to cohesive tenacity based on the linear density of the material.
Note 1:For static tests refer to Test Method D2612.
1.2This 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.
1.3This 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.