ASTM International - ASTM D7050-04(2019)

Standard Practice for Rubber from Natural Sources—Sampling and Sorting Bales Based on Predicted Processing Properties

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Organization: ASTM International
Publication Date: 1 May 2019
Status: active
Page Count: 2
ICS Code (Rubber): 83.060
significance And Use:

3.1 In accordance with Specification D2227, shipments of TSR10 and TSR20 must meet a minimum initial Wallace plasticity (Po) of 30 to be accepted. However, even with this minimum restriction, the... View More

scope:

1.1 This practice covers the sorting of natural rubber bales of TSR10 or TSR20 in the factory according to their predicted processing performance based on differences in viscoelastic properties.

1.2 This practice determines which bales should be used in factory compounds which benefit from using "soft" natural rubber versus which work better with "hard" natural rubber.

1.3 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.

Document History

ASTM D7050-04(2019)
May 1, 2019
Standard Practice for Rubber from Natural Sources—Sampling and Sorting Bales Based on Predicted Processing Properties
3.1 In accordance with Specification D2227, shipments of TSR10 and TSR20 must meet a minimum initial Wallace plasticity (Po) of 30 to be accepted. However, even with this minimum restriction, the...
May 1, 2014
Standard Practice for Rubber from Natural Sources—Sampling and Sorting Bales Based on Predicted Processing Properties
3.1 In accordance with Specification D2227, shipments of TSR10 and TSR20 must meet a minimum initial Wallace plasticity (Po) of 30 to be accepted. However, even with this minimum restriction, the...
September 1, 2009
Standard Practice for Rubber from Natural Sources-Sampling and Sorting Bales Based on Predicted Processing Properties
In accordance with Specification D2227, shipments of TSR10 and TSR20 must meet a minimum initial Wallace plasticity (Po) of 30 to be accepted. However, even with this minimum restriction, the uncured...
June 1, 2004
Standard Practice for Rubber from Natural Sources-Sampling and Sorting Bales Based on Predicted Processing Properties
In accordance with Specification D 2227 , shipments of TSR10 and TSR20 must meet a minimum initial Wallace plasticity (Po) of 30 to be accepted. However, even with this minimum restriction, the...
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