JIS-H-8622-1993-R2004-ENG.pdf

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 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 Standard 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 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 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 ornaments, 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. The 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 Methods 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 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 definitions 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, 03/14/2007 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 harder 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 electroplated 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 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, 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 purchaser 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 are 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 content 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 shall 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 for 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 resistance 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 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 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 of 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 material for the basis material in the specification on processing or the like. 6. Electroplated under-coating When electroplated under-coating is executed in order to improve the appearance, corrosion resistance, adhesion, etc. of electroplated coatings, the classification and thickness of the said electroplated coatings shall be as agreed upon between the purchaser and supplier. 7. Tests 7.1 Preparation of test piece A test piece shall be, as a rule, prepared from products. However, when the electroplated product itself can not be used as the test piece, the test may be executed by a substitute test piece. The substitute test piece shall be prepared by using the same material under the same electroplating conditions as those for preparation of the electroplated original product as far as possible. 7.2 Visual test The visual test shall be as stated in Annex 1. 7.3 Thickness test method for microscopical examination of cross section, fluorescent X-ray spectrometric test method, beta black-scatter test method for measuring thickness or the micrometrical testing method specified in JIS H 8501. Otherwise, IS0 4524/1 shall be applied thereto. The thickness of electroplated coatings shall be indicated to one place of decimal by pm unit. The thickness test shall be in accordance with the 7.4 Gold content test Annex 2 or IS0 452414. The gold content test shall be in accordance with The gold content shall be indicated to one place of decimal by mass %. e 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 Hx8b22 93 M 4933608 0514318 013 M 4 H 8622-1993 7.5 Degree of porosity test with Annex 3 or IS0 4524/3. The degree of porosity test shall be in accordance 7.6 Corrosion resistance test accordance with either of the neutral salt spray test method or CASS test method specified in JIS H 8502. Otherwise, IS0 4524/2 shall be applied thereto. supplier. The corrosion resistance test shall be in The duration of test shall be as agreed upon between the purchaser and 7.7 Adhesion test the tape testing method, thermal testing method, or bending test method specified in JIS H 8504. Otherwise, IS0 4524/5 shall be applied thereto. The number of times for bending or the like in the bending test method shall be as agreed upon between the purchaser and supplier. The adhesion test shall be in accordance with any one of 7.8 Hardness test electroplated coatings or the surface thereof with a test load of 0.09807 N or over by using the test methods specified in JIS Z 2244 or JIS Z 2251. The hardness test shall be carried out on the section of 7.9 Wear resistance test accordance with any one of the test methods specified in JIS H 8503 or shall be in accordance with the method of which the effectiveness is agreed upon between the purchaser and supplier. The wear resistance test shall be carried out in 8. Inspection The inspection shall be carried out as follows: (1) The number of test pieces for inspection, the sampling method of the test piece, the order of inspection, the portions for inspection and the option of substitution with the test piece shall be as agreed upon between the purchaser and supplier. The electroplated coatings shall be tested in accordance with 7., and the results shall conform to the requirements specified in 4. (2) 9. Designation of electroplated coatings The electroplated coatings shall be designated in accordance with JIS H 0404. 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*8622 93 4933608 0514319 T 5 T W 5 H 8622-1993 Example 1. Electroplated coatings of gold for decorative purposes of 5 pm or over thickness on bright nickel electroplated under-coating applied on brass basis material Example 2. Electroplated coatings of gold for decorative purposes of 0.5 pm or over thickness and transparent urethane coating finish applied on copper electroplated under-coating of 10 pm thickness and bright nickel electroplated under-coating of 5 pm thickness on zinc die- casting alloy basis material 1 )-Cu*/Ni b, D-Au 5 Symbol expressing the minimum thickness of electroplated coatings (5 pm) Symbol expressing the class of electroplated coatings (gold electroplated coatings for decorative purposes) Symbol expressing the type of electroplated coatings (bright electroplated coatings) Symbol expressing the class of electroplated coatings (nickel electroplated under-coatings) Symbol expressing the class of basis material (brass basis material) Symbol expressing electroplated coatings I- Note * Brass basis material i1 1 D-AU O. 5/PA* * Symbol expressing post-treatment (transparent urethane coating finish) Symbol expressing the minimum thickness of electroplated coatings (2 pm) Symbol expressing the class of electrpplated coatings (gold electroplated coatings for decorative purposes) Symbol expressing the type of electroplated coatings (bright electroplated coatings) Symbol expressing the thickness of electroplated coatings (5 pm) Symbol expressing the class of electroplated coatings (nickel electroplated under-coating) Symbol expressing the thickness of electroplated coatings (10 pm) Symbol expressing the class of electroplated coatings (copper electroplated under- coatings) Symbol expressing the class of basis material (zinc alloy die-casting) Symbol expressing electroplated coatings 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 -,-,- JIS H*8622 73 M 4733608 0534320 773 M 6 H 8622-1993 Notes * Zinc die-casing alloy basis material * Transparent urethane coating finish Example 3. Double plating of 10 pm or over thickness of gold alloy electroplated under-coatings for decorative purposes of 60 % gold content and 3 pm or over thickness gold alloy electroplated under-coatings for decorative purposes of 90 % gold content applied on bright nickel electroplated under-coatings on steel basis material Ep-Fe/Ni b, D-Au (60.0) 10, D-Au (90.0) 3 Symbol expressing electroplated coatings Symbol expressing the minimum thickness (3 pm) of electroplated coatings Symbol expressing the gold content Symbol expressing the class of electroplated coatings (gold alloy electroplated coatings for decorative purposes) Symbol expressing the minimum thickness (10 pm) of electroplated coatings Symbol expressing the gold content Symbol expressing the class of electroplated coatings (gold alloy electroplated coatings for decorative purposes) Symbol expressing the type of electroplated coatings (bright electroplated coatings) Symbol expressing the class of electroplated coatings (nickel electroplated under-coatings) Symbol expressing the class of basis material (iron and steel basis material) 10. Marking The following items shall be marked on the invoice or the like, (1) Symbol of electroplated coatings (2) Date of processing (3) Name of electroplating processor (4) Test results on the quality of electroplated coatings stated on the purchase order, the specification sheet on processing, etc. 11. processing or specification sheet on process