ISO 2624:1990
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ISO 2624:1990
7601

Status : Published (Under review)

This standard was last reviewed and confirmed in 2019. Therefore this version remains current.
en
Format Language
std 1 63 PDF
std 2 63 Paper
  • CHF63
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Abstract

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.

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General information

  •  : Published
     : 1990-02
    : International Standard confirmed [90.93]
  •  : 2
     : 7
  • ISO/TC 26
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