EN 12329-2000 pdf download

08-15-2021 comment

BS EN 12329-2000 pdf download.Corrosion protection of metals — Electrodeposited coatings of
zinc with supplementary treatment on iron or steel.
This BS EN 12329 specifies requirements for electrodeposited coatings of zinc on iron or steel witt supplementary treatment
This European Standard does not specify chromate finishes which are required only for improving the adhesion of paints or varnishes.
NOTE Tl’is European Standard is not mtended to be used alone, but is the complement of EN 1403. II is necessary br the purchaser to specify the zinc electrodeposited coating m accordance w4h the designation as specified in EN 1403
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropnate places in the text and the publications are listed hereafter For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when Incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies.
prEN ISO 3497, Metallic coatings — Measurement of coating thickness — X-ray spectrometnc methods (ISO/DIS 3497:1998).
prEN ISO 3543, Metallic and nonmetallic coatings — Measurement of thickness — Beta backscatter method (ISOIDIS 3548 1998)
EN 1403:1998, Corrosion protection of metals — Electrodepossted coatings — Method of specifying general requirements.
EN ISO 1461. Hot dp galvanized coatings on fabricated Iron and steel articles — Specifications and test methods (ISO 1461:1999)
EN ISO 1463. Metallic and oxide coatings — Measurement of coating thickness — Microscopical method
(ISO 1463:1982).
EN ISO 2177. Metallic coatings — Measurement of coating thickness — Coulometric method by anodic dissolution (ISO 2177:1985)
EN ISO 2178. Non-magnetic coatings on magnetic substrates — Measurement of coating thickness — Magnetic method (ISO 2178:1982).
EN ISO 2360, Non.conductive coatings on non..magrtetlc basis metals — Measurement of coating thickness
— Eddy current method (ISO 2360:1982).
EN ISO 2819, Metallic coatings on metallic substrates — Electrodeposited and chemically deposited coatinos — Review of methods avaüabie for lestino adhesion (ISO 2819:1980)
7.1 General
All tests (including corrosion resistance tests) shall be deferred until the expiry of a period of 24 h after the chromahng process has ended.
NOTE Chromate conversion coatings harden wh age by gradual dehydration They should th.relore be handled carefully for the first 24 h after the treatment
7.2 Appearance
Over the significant surface, the electroplated articles shall be free from clearly visible plating defects such as blisters, pits. roughness. cracks or unpiated areas, See also 4.1 d) of EN 1403:1998.
Parts which have been given supplementary treatment shaft be free from untreated areas on the significant surface.
7.3 Thickness
7.3.1 Minimum local thickness
When tested in accordance with one of the following standards the minimum local thickness of the zinc coating on articles having a significant surface area of greater than 1 cm2 shall conform to that specified in its designation: EN ISO 1463. EN ISO 2177. EN ISO 2178, EN ISO 2360. pr-EN ISO 3497, prEN ISO 3543.
NOTE Before using the method specified i EN ISO 2177, it is necessary to remove the chromate or other supplementary treatment using a very mild abrasive. for example a paste of levigated alumina or magnesium oxide In the case of heavy conversion coebngs. the results will. threfore, be slightly tow
7.3.2 Average thickness
For articles having a significant surface area of less than 100 mm2, the minimum local thickness shall be deemed to be the minimum value of the average determined by the method specified in annex 0.
7.4 Adhesion
7.4.1 Adhesion of zinc coating
When tested by the burnishing test in accordance with EN ISO 2819 the zinc coating shall have good adhesion.
7.4.2 Adhesion of coloured chromate coating
Coloured chromate coatings shall be tested in accordance with 3.6 of EN ISO 3613:1994.BS EN 12329-2000 pdf download.

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    • Atul Goyal Atul Goyal @Reply

      Wanted EN-16286 standard for free