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ISO 2624:1990

Copper and copper alloys — Estimation of average grain size
18 jan 1990

General information

90.20     15 korr 2024

ISO

ISO/TC 26

International Standard

77.120.30     77.040.99  

frëngjisht   anglisht  

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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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 2624:1973

NOW

PUBLISHED
ISO 2624:1990
90.20 Standard under periodical review
15 korr 2024

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