DS/EN ISO 1518-1:2019

Paints and varnishes – Determination of scratch resistance – Part 1: Constant-loading method (ISO 1518-1:2019)

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This part of ISO 1518 specifies a test method for determining under defined conditions the resistance of
a single coating or a multi-coat system of paint, varnish or related product to penetration by scratching
with a scratch stylus loaded with a specified load. Penetration of the stylus is to the substrate, except in
the case of a multi-coat system, in which case the stylus can penetrate either to the substrate or to an
intermediate coat.
The method specified can be carried out
a) either as a “pass/fail” test, by testing with a single specified load applied to the stylus to assess
compliance with a particular specification;
b) or as an assessment test by applying increasing loads to the stylus to determine the minimum load
at which the coating is penetrated.
Neither this part of ISO 1518 nor ISO 1518-2 specifies a method using a curved stylus, which is specified
in ISO 12137. The choice between the three methods will depend on the particular practical problem.

Number of pages: 20

Published: 2019-07-10

Date of approval: 2019-07-09

International relationships : EN ISO 1518-1:2019 IDT ISO 1518-1:2019 IDT

ICS: 87.040 - Paints and varnishes

Item number: M323136



  • CEN/TC 139
  • ISO/TC 35/SC 9
  • ISO/TC 35/SC 9/WG 31

Danish committee