ASTM D926-08(2013)

Standard Test Method for Rubber Property—Plasticity and Recovery (Parallel Plate Method)

STANDARD published on 1.11.2013

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The information about the standard:

Designation standards: ASTM D926-08(2013)
Note: WITHDRAWN
Publication date standards: 1.11.2013
SKU: NS-39794
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Rubber

Annotation of standard text ASTM D926-08(2013) :

Keywords:

elastic properties, flow properties, parallel plate plastometer, plasticity, plasticity and recovery, plastometer, Williams plastometer, ICS Number Code 83.060 (Rubber)

Additional information

Significance and Use

4.1 The plasticity number and the recovery of the test specimen are related to the flow properties and the elastic properties, respectively, and may be useful in predicting processing characteristics, such as ease of forming and extrusion characteristics.

4.1.1 In this test method, plasticity is measured in an inverse manner, as noted by the final height of the specimen. Thus, high plasticity rubbers (high degree of flow during test) are indicated by a low plasticity number.

1. Scope

1.1 This test method covers the determination of plasticity and recovery of unvulcanized rubber by means of the parallel plate plastometer. Uncompounded, compounded, and reclaim rubber may be tested.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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 and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents

ISO 2007	Rubber Unvulcanized--Determination of Plasticity--Rapid Plastimeter Method
D3194-17(2022)	Standard Test Method for Rubber From Natural Sources—Plasticity Retention Index (PRI)
D3767-03(2020)	Standard Practice for Rubber´Measurement of Dimensions
D4483-20	Standard Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries
E145-19	Standard Specification for Gravity-Convection and Forced-Ventilation Ovens

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