Povučen
The method specified is applicable only for determining Knoop hardness in accordance with ISO 4545 giving indentations with long diagonals longer than or equal to 20 micrometres. Describes manufacture of the block, standardizing machine, standardizing procedure, number of indentations, uniformity of hardness, marking and test certificate. Annex A describes adjustment of Abbe/Nelson or Kohler illumination systems.
POVUČEN
ISO 4547:1993
95.99
Povučen
17. 11. 2005.
POVUČEN
ISO 4545-3:2005
Mehanička ispitivanja metala - Kalibrisanje referentnih pločica za proveru aparata za ispitivanje tvrdoće po Knupu (identičan sa ISO 4547:1993)
95.99 Povučen