ISO 2039-1, Plastics — Determination of hardness — Part 1: Ball indentation method, is the test method for hardness.
ISO 2039-1 Plastics — Determination of hardness — Part 1: Ball indentation method
At a Glance
Document type: Test Method.
Edition: edition ISO 2039-1:2001.
Property determined: hardness.
Scope
Specifies a method for determining the hardness of plastics and ebonite by means of a loaded ball indenter.
The hardness value is calculated from the measured indentation depth, which is read while the indenter is under load.
What the Result Tells You
A test to ISO 2039-1 characterises the hardness of the material or assembly under the conditions the method fixes: specimen form, rate of loading and the environment in which the test is run.
Because the numbers depend on those fixed conditions, a result is only meaningful when the report names the standard, the edition and any options the method allows.
Related Standards
ISO 2039-2: the Rockwell part of the same series, which reads the indentation depth at a defined preload rather than under full load.
ASTM D785: the ASTM method for Rockwell hardness of plastics and electrical insulating materials.
Reading the Designation
ISO 2039-1: the designation as published by the issuing body.
Year suffix: the revision is identified by its year, as in ISO 2039-1-39. A specification that names an edition fixes that edition; a later revision does not apply to an order retroactively.
When a drawing, purchase order or quality procedure cites this document, the test setup, the specimen and the report follow that citation.
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