ASTM-D746 2007

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D746-07 Standard Test Method for Brittleness Temperature of Plastics and Elastomers by Impact

Published By	Publication Date	Number of Pages
ASTM	2007	8

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Categories: 83.080.01 - Plastics in general, ASTM

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Description

1.1 This test method covers the determination of the temperature at which plastics and elastomers exhibit brittle failure under specified impact conditions. Two routine inspection and acceptance procedures are also provided.

Note 1When testing rubbers for impact brittleness use Test Methods D 2137.

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

1.3 Due to the potential safety and environmental hazards associated with mercury-filled thermometers, the use of alternative temperature measuring devices (such as thermocouples and RTDs) is encouraged.

1.4 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.

Note 2This test method and ISO 974 (E) are technically equivalent when using the Type B fixture and the Type III specimen, however, the minimum number of specimens that are required to be tested is significantly different when using this test method. The ISO method requires that a minimum of 100 specimens be tested.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method Significance and Use
2	Apparatus FIG. 1
3	Test Specimen FIG. 2 FIG. 3 FIG. 4
4	FIG. 5 FIG. 6
5	Conditioning Procedure Routine Inspection and Acceptance Calculation
6	Report Precision and Bias Keywords FIG. 7 TABLE 1
7	X1. STRIKER MECHANISM VELOCITY CALIBRATION FOR THE SOLENOID-ACTUATED BRITTLENESS TESTER X1.1 X1.2 X1.3 X1.4 X1.5 FIG. X1.1 FIG. X1.2
8	X2. STRIKER MECHANISM VELOCITY CALIBRATION FOR THE SOLENOID-ACTUATED BRITTLENESS TESTER DURING ACTUAL TESTING X2.1 X2.2 X2.3

Additional information

Standard Title	D746-07 Standard Test Method for Brittleness Temperature of Plastics and Elastomers by Impact
Published Code	ASTM
Publication Date	2007
Pages Count	8
ICS Codes	83.080.01 - Plastics in general

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ASTM-D746 2007

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