ASTM D395-03(2008)
Standard Test Methods for Rubber Property8212;Compression Set

Standard No.

ASTM D395-03(2008)

Release Date

2003

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D395-14

Latest

ASTM D395-18

Scope

Compression set tests are intended to measure the ability of rubber compounds to retain elastic properties after prolonged action of compressive stresses. The actual stressing service may involve the maintenance of a definite deflection, the constant application of a known force, or the rapidly repeated deformation and recovery resulting from intermittent compressive forces. Though the latter dynamic stressing, like the others, produces compression set, its effects as a whole are simulated more closely by compression flexing or hysteresis tests. Therefore, compression set tests are considered to be mainly applicable to service conditions involving static stresses. Tests are frequently conducted at elevated temperatures.

1.1 These test methods cover the testing of rubber intended for use in applications in which the rubber will be subjected to compressive stresses in air or liquid media. They are applicable particularly to the rubber used in machinery mountings, vibration dampers, and seals. Two test methods are covered as follows:

Test Method	Section
A-Compression Set Under Constant Force in Air	7-10
B-Compression Set Under Constant Deflection in Air	11-14

1.2 The choice of test method is optional, but consideration should be given to the nature of the service for which correlation of test results may be sought. Unless otherwise stated in a detailed specification, Test Method B shall be used.

1.3 Test Method B is not suitable for vulcanizates harder than 90 IRHD.

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

1.5 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.

ASTM D395-03(2008) Referenced Document

• ASTM D1349 Standard Practice for Rubber-Standard Temperatures for Testing
• ASTM D3182 Standard Practice for Rubber-Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
• ASTM D3183 Standard Practice for Rubber-Preparation of Pieces for Test Purposes from Products
• ASTM D3767 Standard Practice for Rubber-Measurement of Dimensions
• ASTM D4483 Standard Practice for Determining Precision for Test Method Standards in the Rubber and Carbon Black Industries
• ASTM E145 Standard Specification for Gravity-Convection And Forced-Ventilation Ovens

ASTM D395-03(2008) history

• 2018 ASTM D395-18 Standard Test Method for Rubber- and Plastic-Coated Fabrics—Discoloration Sensitivity to Tobacco Smoke
• 2016 ASTM D395-16e1 Standard Test Methods for Rubber Property—Compression Set
• 2016 ASTM D395-16 Standard Test Methods for Rubber Property&x2014;Compression Set
• 2015 ASTM D395-15 Standard Test Methods for Rubber Property&x2014;Compression Set
• 2014 ASTM D395-14 Standard Test Methods for Rubber Propertymdash;Compression Set
• 2003 ASTM D395-03(2008) Standard Test Methods for Rubber Property8212;Compression Set
• 2003 ASTM D395-03 Standard Test Methods for Rubber Property8212;Compression Set
• 2002 ASTM D395-02 Standard Test Methods for Rubber Property8212;Compression Set
• 2001 ASTM D395-01 Standard Test Methods for Rubber Property-Compression Set
• 1998 ASTM D395-98 Standard Test Methods for Rubber Property-Compression Set