ISO 2624:1990
Copper and copper alloys; estimation of average grain size
- Standard No.
- ISO 2624:1990
- Release Date
- 1990
- Published By
- International Organization for Standardization (ISO)
- Latest
- ISO 2624:1990
- Scope
- 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 history
- 1990 ISO 2624:1990 Copper and copper alloys; estimation of average grain size
- 1973 ISO 2624:1973 Copper and copper alloys — Estimation of average grain size
