Document Details |
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| Name of Department/Committee : | MTD 24 | ||||
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| Document Number : | MTD 24 ( 25741) | ||||
| Document Title [English] : | Anodizing of aluminium and its alloys Estimation of loss of absorptive power of anodic oxidation coatings after sealing Dye-spot test with prior acid treatment | ||||
| Document Title [Hindi] : | एल्यूमीनियम और उसके मिश्रधातुओं का एनोडाइजिंग — संयोजन के बाद एनोडिक ऑक्सीकरण लेपन की अवशोषी शक्ति की क्षति का आंकलन — पूर्व अम्ल उपचार के साथ डाई-स्पॉट परीक्षण | ||||
| Document Type : | Revision | ||||
| Language : | English | ||||
| Priority : | 3 | ||||
| ICS Code : | 25.220.20 | ||||
| Date of Project Approval : | 01-05-2024 | ||||
| Standards to be Revised : |
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| Standards to be Superseded : |
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Classification Details |
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| Group : | Metals, Alloys and Metal Products (including Steel Products) |
| Sub Group : | Anti-corrosion products |
| Sub Sub Group : | Test Methods on corrosion protection |
| Aspects : | Methods of tests |
| Risk : | None |
| Certification : | None |
| Short Commom Man's Title : | Method for estimation of loss of absorptive power of anodic oxide coatings after sealing dye spot te |
| ITCHS Code : | |
| Ministry : | |
| Sustainable development Goals : | |
| Degree of Equivalence : | Identical under dual numbering |
| Identical/Equivalent Standards : | ISO 2143:2017 |
| Organization Type: | ISO |
| Sl.No. | Synosis Points | |
| 1 | ISO 2143 specifies a method of estimating the loss of absorptive power of anodic oxidation coatings that have undergone a sealing treatment, by dye absorption after acid pretreatment. The method is suitable for use as a production control method and can be applicable to anodic oxidation coatings which may be subjected to weathering or aggressive environments, or where resistance to staining is important. | |
| 2 | The method is not applicable to those coatings that a) are formed on alloys containing more than 2 % copper or 4 % silicon, b) are sealed by the dichromate process, c) have been given supplementary processing, e.g. oiling, waxing or lacquering, d) are coloured in deep shades, and e) are less than 3 μm thickness. The method is less appropriate where nickel or cobalt salts, or organic additives, have been added to baths used for hydrothermal sealing. | |
Timeline Details |
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Stages |
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| Sl. No. |
Stage | Date of Occurence | Remarks | Circulated to | Files |
| 1 | Generation of Document Number | 01-05-2024 | ------- | ||
| 2 | P-Draft Waived | 03-06-2024 | ISO Adoption. | ------- | |
| 3 | WC Draft | 03-06-2024 | Duration : 30 Days Submitted for HOD approval |
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| 4 | WC Draft | 03-06-2024 | WC approved by HOD |
MTDC | ------- |