Document Details |
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| Name of Department/Committee : | MTD 22 |
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| Document Number : | MTD 22 ( 25480) |
| Document Title [English] : | Copper and copper alloys - Estimation of average grain size |
| Document Title [Hindi] : | तांबा और तांबा मिश्रधातु - औसत अनाज के आकार का अनुमान |
| Document Type : | New |
| Language : | English |
| Priority : | 1 |
| ICS Code : | ICS 77.040.99 , 77.120.30 |
| Date of Project Approval : | 18-03-2024 |
| Standards to be Superseded : | |
Classification Details |
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| Group : | Metals, Alloys and Metal Products (including Steel Products) |
| Sub Group : | Heat treatment, metallography and testing |
| Sub Sub Group : | Test Methods on metallography |
| Aspects : | Methods of tests |
| Risk : | None |
| Certification : | None |
| Short Commom Man's Title : | |
| ITCHS Code : | |
| Ministry : |
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| Sustainable development Goals : | |
| Degree of Equivalence : | Identical under dual numbering |
| Identical/Equivalent Standards : | ISO 2624:1990 |
| Organization Type: | ISO |
| Sl.No. | Synosis Points | |
| 1 | This International Standard 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 respective procedures are termed the comparison procedure, the intercept procedure and the planimetric procedure. The comparison procedure (comparing the specimen with a standard chart) is most convenient and is sufficiently accurate for most commercial purposes. Higher degrees of accuracy in estimating grain size are obtainable by using the intercept (Heyn) or planimetric (Jeffries) procedures. In cases of dispute, it is recommended that the use of one of these procedures be agreed between the parties. For material with non-equiaxial structures it is recommended that the intercept procedure be used. | |
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| Sl. No. |
Stage | Date of Occurence | Remarks | Circulated to | Files |
| 1 | Generation of Document Number | 18-03-2024 | ------- | ||
| 2 | P-Draft Waived | 01-05-2024 | Since it is an ISO adoption | ------- | |
| 3 | WC Draft | 01-05-2024 | Duration : 30 Days Submitted for HOD approval Remarks : For your kind comments and inputs please |
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| 4 | WC Draft | 01-05-2024 | WC approved by HOD |
MTDC | ------- |
| 5 | WC Draft | 01-05-2024 | WC approved by HOD |
MTDC | ------- |