JIS-H-8622-1993-R2004-ENG.pdf
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1、JIS Ht8622 93 m 4933608 0514313 531 ;JI$ UDC 669.21 8:669.215:669.058:671.12 JAPANESE INDUSTRIAL STANDARD Electroplated coatings of gold and gold alloy for decorative purposes JIS H 8622-1993 Translated and Published by Japanese Standards Association Printed in Japan 8s Copyright Japanese Standards
2、Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 07:20:28 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S H*Bb22 93 4933608 0534334 478 W In the event of any doubt arising, the original S
3、tandard in Japanese is to be final authority. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 07:20:28 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S H*8b22
4、 93 4933608 0534335 304 = UDC 669.218: 669.215: 669.058: 671. 12 JAPANESE INDUSTRIAL STANDARD J I S Electroplated coatings of gold and gold alloy H 8622-1993 for decorative purposes 1. Scope This Japanese Industrial Standard specifies the electroplated coat- ings of gold and gold alloy of 0.3 pm or
5、over in thickness of the significant surface (2) (hereafter referred to as “electroplated coatings“) applied on the metallic or nonmetallic basis materials for decorative purposes (l). Notes (l) The decorative purposes mean the application of electroplated coatings mainly for watches, personal ornam
6、ents, personal sun- dries and others of which the properties such as appearance and wear resistance are considered to be important. (2) The significant surface means the surface essential for service- ability and/or appearance. Remarks 1. This Standard shall be applied only to the formed parts. 2. T
7、he following standards are cited in this Standard. JIS H 0400 Glossary of terms used in electroplating JIS H 0404 Graphical symbol for electroplated coating JIS H 8501 Methods of thickness test for metallic coatings JIS H 8502 Methods of corrosion resistance test for metallic coatings JIS H 8503 Met
8、hods of wear resistance test for metallic coat- ings JIS H 8504 Methods of adhesion test for metallic coatings JIS Z 2244 Method of Vickers hardness test JIS Z 2251 Method of Knoop hardness test IS0 4524: 1985 Metallic coatings - Test methods for elec- trodeposited gold and gold alloy coatings Part
9、1: Determination of coating thickness Part 2: Environmental test Part 3: Electrographic tests for porosity Part 4: Determination of gold content Part 5: Adhesion tests 2. Definition JIS H 0400 apply, and the rest of the terms shall be as follows: For the main terms used in this Standard, the definit
10、ions in (1) electroplated coatings of gold Electroplated coatings of 99.9 % or over in gold content. They are generally soft electroplated coatings. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/
11、14/2007 07:20:28 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S Hm8622 93 4933608 05L43Lb 240 = 2 H 8622-1993 (2) electroplated coatings of gold alloy over to and excl. 99.9 % in gold content. The hardness of the electroplated coatings of gold alloy is generally hard
12、er in comparison with electroplated coatings of gold. Electroplated coatings of 58.5 % or (3) multilayer coatings The electroplated coatings consisting of two or more layers of differing gold content. 3. Symbols prefixing the symbol D indicating the decorative purposes to the element symbol Au of el
13、ectroplated coatings of gold with a hyphen “-“ between them, and otherwise shall be in accordance with JIS H 0404. The symbols of electroplated coatings shall be indicated by 4. Quality 4 . 1 Appearance of electroplated coatings The appearance of electroplated coatings shall be subjected to the test
14、 in 7.2, and the significant surface shall be free from defects of electroplated coatings such as rough surface, burnt deposits, crack, pit, development of dendrite at an edge part, bare spots, etc. in basis material or electroplated under-coatings, symptoms of failures in adhesion such as blister,
15、peeling, etc., and further stains, flaws, etc. Remarks: When gloss, brightness, hue, etc. are specified, they shall be as agreed upon between the purchaser and supplier. 4.2 Thickness of electroplated coatings The thickness of electroplated coatings shall be specified as agreed upon between the purc
16、haser and supplier. The thickness shall be tested in accordance with 7.3, and the result shall conform to the specified thickness of electroplated coatings at any position on the significant surface. Informative reference: The classification of the minimum thickness of electroplated coatings which a
17、re generally used, is as given in Informative reference Table 1. Informative reference Table 1. Classification by minimum thickness of electroplated coatings Minimum thickness of electroplated coatings pm 0.3, 0.5, 1.0, 2.0, 3.0, 5.0, 10.0, 20.0, 30.0, 40.0 4.3 electroplated coatings (the gold conte
18、nt of each layer for multilayer electroplated coatings) is specified, the content of gold shall be tested in accordance with 7.4, and it shall conform to the specified value. Gold content in electroplated coatings When the gold content of 4.4 of electroplated coatings is specified, the porosity shal
19、l be tested in accordance with 7.5, and the results shall conform to the specified value. Degree of porosity of electroplated coatings When the degree of porosity Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not f
20、or Resale, 03/14/2007 07:20:28 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S H*8b22 93 m 4733608 0514317 187 m 3 H 8622-1993 4.5 Corrosion resistance of electroplated coatings When the corrosion resistance of electroplated coatings is specified, the corrosion resist
21、ance shall be tested in accordance with 7.6, and the result shall conform to the specified value. 4.6 Adhesion of electroplated coatings The adhesion of electroplated coatings shall be tested in accordance with 7.7, and the electroplated coatings shall be free from appearance of symptom of faults in
22、 adhesion such as peeling, blister, etc. When there is no peeling in electroplated coatings and the basis material is broken by cracks, it is not taken as faults in adhesion. 4.7 Hardness of electroplated coatings When the hardness of electroplated coatings is specified, the hardness shall be tested
23、 in accordance with 7.8, and the result shall conform to the specified value. 4.8 electroplated coatings is specified, the wear resistance shall be tested in accordance with 7.9, and the result shall conform to the specified value. Wear resistance of electroplated coatings When the wear resistance o
24、f 5. Basis material Since the condition of basis material before electroplated coating has an important influence on the quality of electroplated coatings, especially when the material for the basis material is supplied from a purchaser, the purchaser shall indicate information concerning the materi
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