SR EN ISO 11127-4:2003

Preparation of steel substrates before application of paints and related products - Test methods for non-metallic blast-cleaning abrasives - Part 4: Assessment of hardness by a glass slide test (ISO 11127-4:1993)

The procedure includes examining a small quantity of the sample under the microscope and, if grains of different colours or diameter are present, selecting a few grains of each, placing the selected grains between two glass microscope slides and, whilst applying pressure, slowly moving one slide over the other with a reciprocating motion for 10 s, examining the glass surfaces for scratches. The object of the method is to assess whether the sample has a minimum hardness of 6 on Mohs' scale. Annex A gives information on the international standards series for non-metallic blast-cleaning abrasives ISO 11126 and ISO 11127.

General information

Status : Withdrawn
Approval date : 8/20/2003
Publish date : 8/21/2003
Withdrawal date : 5/31/2012
Number of pages : 10
ICS : 87.020 Paint coating processes
Technical Committee : 338 - Adhesives

Relations with other standards:

Replaced by SR EN ISO 11127-4:2012
A99 SR ISO 11127-4:1998/A99:2003