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Norm

ISO 2624:1990

Issue date: 1990 01 18

Copper and copper alloys — Estimation of average grain size

Specifies three procedures for estimating, and rules for expressing, the average grain size of copper and copper alloys consisting principally of a single phase. The comp...
Valid

Specifies three procedures for estimating, and rules for expressing, the average grain size of copper and copper alloys consisting principally of a single phase. The comparison procedure (comparing the specimen with a standard chart) is most convenient and is sufficiently accurate for most commercial purposes. In cases of dispute the use of the Heyn or Jeffries procedures (intercept procedure and planimetric procedure, respectively) having higher degrees of accuracy is recommended.

ISO 2624:1990
1990 01 18
Copper and copper alloys — Estimation of average grain size
Norm
ISO 2624:1973
1973 09 01
Copper and copper alloys — Estimation of average grain size
Norm