GB/T 3854-2017Test method for hardness of reinforced plastics by means of a Barcol impresser (English PDF)

1 Scope

This Standard specifies principle, test instrument, specimen, test conditions, test procedures, test results and test report by using the Barcol hardness tester to test the hardness of reinforced rigid plastics and their products.

This Standard is applicable to the determination of the Barcol hardness of the reinforced rigid plastics and their products; while the determination of the Barcol hardness of the non-reinforced rigid plastics and their products can also refer to this

Standard; however, it is not applicable to the materials with Barcol hardness less than

20.

2 Normative References

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document.

GB/T 1446 The Generals of Test Methods for Properties of Fiber-Reinforced

Plastics

3 Principle

When using the Barcol hardness tester to measure the surface hardness of the materials, it indicates that press the specific pyramid into the specimen under the pressure of the standard load spring; the relative hardness of the specimen is characterized according to the depth of the press.

4 Test Instrument

Use the Barcol hardness tester to measure, its structural diagram can refer to Appendix

A.

8 Test Results

9 Test Report

The test report shall include the following contents at least:

a) Specimen name, appearance quality;

b) Specimen delivery organization;

c) State adjustment and test environment condition of the specimen;

d) Model of the Barcol hardness tester;

e) Test results;

f) This Standard number;