ISO 11127-4:1993
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
Reference number
ISO 11127-4:1993
Edición 1
1993-12
Retirada
ISO 11127-4:1993
19141
Retirada (Edición 1, 1993)

Resumen

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.

Informaciones generales

  •  : Retirada
     : 1993-12
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 3
  • ISO/TC 35/SC 12
    25.220.10 
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