Which metal is used to strengthen gold?

The National Council has resolved: 1. The conclusion of the following State Treaty: Amendment of Appendices I and II including attachments to the Convention on the Testing and Designation of Precious Metals, including a declaration by the Republic of Austria, is approved. 2. Pursuant to Art. 49 para. 2 B-VG, the change must be announced in French by making it available for public inspection at the Federal Ministry of Finance.




(Translation) Appendix I Definitions and Technical Requirements 1. Definition For the purposes of this Convention, the following definitions apply. 1.1 Precious metals Precious metals are platinum, gold, (palladium) Applies only after the entry into force of the amendment to Article 2 of the Convention. and silver. Platinum is the most valuable metal, followed by gold, (palladium) Applies only after the amendment to Article 2 of the Convention comes into force. and silver. 1.2 Precious metal alloy A precious metal alloy is a solid solution that contains at least one precious metal. 1.3 Precious metal item A precious metal item is any jewelery, goldsmith, silversmith's or watchmaker's item or any other item that consists wholly or partially of precious metals or their alloys. 1.4 Fineness The fineness is the proportion of the named precious metal, expressed in thousand parts of the total weight of this alloy. 1.5 Indication of fineness The indication of fineness corresponds to the minimum proportion of the named precious metal in an alloy, expressed as a thousand parts of the total weight. 1.6 Coating / plating of precious metal A precious metal coating or plating is a layer of precious metal or a precious metal alloy that is applied to all or parts of a precious metal object, for example by means of chemical, electrochemical, mechanical or physical processes.

1.7 Base metals Base metals are all metals with the exception of platinum and gold (palladium) Applies only after the amendment to Article 2 of the Convention has entered into force. and silver. 2. Technical requirements 2.1 The Convention does not apply to: a) Articles made of alloys with a fineness of less than 850 for platinum, 375 for gold, (500 for palladium) Only applies after the entry into force of the amendment to Article 2 of the Convention. and 800 for silver; b) Articles intended for medical, dental, veterinary, scientific or technical purposes; c) legal tender; d) parts or unfinished semi-finished products (e.g. metal parts or surface layers); e) Raw materials such as ingots, plates, wires and tubes; f) goods made of base metal coated with precious metal; g) any other matter determined by the Standing Committee. 2.2 The following fineness specifications apply to the Convention See Article 1, Paragraph 2 of the Convention: For platinum: 999, 950, 900, 850 For gold: 999, 916, 750, 585, 375 (For palladium: 999, 950, 500) Applies first after the amendment to Article 2 of the Convention has entered into force. For silver: 999, 925, 830, 800 2.2.1 Other fineness levels can be recognized by the Standing Committee due to international developments. 2.3 Tolerance 2.3.1 With regard to the fineness indicated on the item, a minus tolerance is not permitted. 2.3.2 The Standing Committee issues special regulations for special manufacturing processes. 2.4 Use of Lot 2.4.1 Lot may only be used for connection purposes. Basically, the fineness of the solder must correspond to that of the object. 2.4.2 Practical exceptions to this principle and other methods of liaison will be determined by the Standing Committee. 2.5 Use of parts made of base metal 2.5.1 The use of parts made of base metal on precious metal objects is prohibited with the exception of the following cases: a) Mechanisms in mechanical pencils, clockworks, internal mechanisms of vehicles and similar mechanisms if precious metals are unsuitable for technical reasons ; b) Knife blades and such parts of bottle openers, corkscrews and similar objects that for technical reasons cannot be made from precious metals; c) springs; d) wire for connecting silver hinges; e) needles for silver brooches. Further exceptions can be decided by the Standing Committee. 2.5.2 The Standing Committee issues regulations for the connection of parts made of base metal with precious metal parts as permitted in paragraph 2.5.1. 2.5.3 Parts made of base metal are, if possible, to be embossed or engraved with "METAL" or with the specific designation of the metal; where this is impracticable, they must be easily distinguishable from the precious metal by their color. This requirement does not apply to watch movements. Base metal must not be used for reinforcement, weight increase or for filling purposes.

2.6 Use of non-metallic components The use of non-metallic parts is permitted, provided that they are clearly distinguishable from the precious metal, are not plated or colored to resemble precious metals and their extent is visible. The Standing Committee can decide on further details. 2.7 Coating on precious metal objects The precious metal coating must have at least the same fineness as the object itself or consist of a valuable precious metal. 2.7.1 The Standing Committee decides on permissible conditions. Annex II Examination by the authorized hallmarking office (s) 1. General The authorized hallmarking office (s) (hereinafter referred to as the “hallmarking office”) has / have to check whether precious metal objects which it / they are designated with the Common hallmark, comply with the conditions of Appendix I of this Convention. 1.1 If the Assay Office determines that an item is complete with regard to its metal parts and complies with the provisions of Appendix I of this Convention, the official hallmark of the Assay Office and the common hallmark will be attached to the item on request. If the common hallmark is affixed, the Assay Office must ensure before the item is handed over that it is fully designated in accordance with the provisions of the following paragraphs. 2. Analysis methods The Assay Office has to use one of the recognized analysis methods - as recorded in Appendix I - to test the precious metal objects. The Standing Committee may amend this list in accordance with future developments. Other test methods can be used to assess the homogeneity of a batch. 3. Sampling The number of objects that are taken from a lot and the number of samples taken for testing and analysis must be sufficient to determine the homogeneity of the lot and to ensure that all parts of the objects tested in the lot correspond to the required fineness . Sampling guidelines are issued by the Standing Committee. 4. Designation The following minimum designations are to be affixed to objects that meet the criteria of Annex I: a) a registered responsibility mark as described in paragraph 4.2; b) the official hallmark of the hallmarking office; c) the common hallmark as described in paragraph 4.3; and d) the corresponding fineness in Arabic numerals. The marks b) and c) must be put on the item by the hallmarking office. The characters a) and d) can be struck, cast or engraved on the object. If possible, all designations should be placed next to each other. Other characters, which cannot be confused with the designations mentioned above, are permitted as additional characters. 4.1 The Standing Committee can decide on further method of designating objects. 4.2 The responsibility mark according to paragraph 4 letter a must be entered in an official register of the contracting state - and / or one of its hallmarking offices - in whose territory the object in question is examined. 4.3 The common hallmark consists of the relief representation of a scale with a number in Arabic numerals, which indicates the fineness of the object in thousand parts on a hatched background within a frame cf. Federal Law Gazette No. 346/1975, which indicates the type of precious metal as follows : - for platinum objects; - for gold objects; - (for palladium items) Only after the entry into force of the amendment to Article 2 of the Convention .; - for silver items.

4.3.1 Any of the various fineness indications listed by the Standing Committee can be used. 4.3.2 The approved sizes of the common hallmark are listed in Appendix II. This list can be modified by the Standing Committee. 4.4 Objects that are composed of several alloys of the same precious metal Where an object consists of different alloys of the same precious metal, the indicated fineness and the common hallmark must correspond to the lowest fineness in the object. Exceptions can be decided by the Standing Committee. 4.5 Items assembled from parts If an item consists of parts that are hinged or easily separable, the above symbols must be affixed to the main part. Where practicable, the common hallmark must also be applied to the smaller parts. 4.6 Objects composed of alloys of different precious metals 4.6.1 If an object consists of alloys of different precious metals and the color and size of each alloy are clearly visible, the symbols mentioned in paragraph 4 letters a, b, c and d must be on the one precious metal alloy and the corresponding common hallmark can be affixed to the other. 4.6.2 If an object consists of alloys of different precious metals and the color and size of each alloy are not visible, the symbols mentioned in paragraph 4 letters a, b, c and d must be affixed to the precious metal that is least valuable. A common hallmark that refers to the more valuable precious metals may not be attached. 4.6.3 Exceptions to the above regulations are decided by the Standing Committee for legitimate technical reasons. Appendix I Analytical methods and other test procedures The test of precious metal objects that are presented for designation with the common hallmark consists of the following two steps: 1. Assessment of the homogeneity of the batch and 2. Determination of the fineness of the alloy. 1. The homogeneity of the lot can be assessed using one of the following test methods: a) random sample; b) examination with X-ray fluorescence spectrometry and c) analysis of chips collected from several pieces taken from a lot. 2. The precious metal fineness is determined by one of the following recognized analytical methods: Platinum: Gravimetric method after precipitation as diammonium hexachloroplatinate (document EN 31210 / ISO 11210: 1995) Gravimetric method by reduction with mercury chloride (document EN 31489 / ISO 11489: 1995) Spectrometric method / ICP solution (document pr EN 31494 / ISO / DIS 11494) Atomic absorption (document ISO / WD 11492) Gold: cupellation (document EN 31426 / ISO 11426: 1997) Spectrometric method / ICP solution (document ISO / WD 11493)

[Palladium: Gravimetric determination with dimethylglyoxime (document EN 31490 / ISO 11490: 1995)] Spectrometric method / ICP solution (document EN 31495 / ISO / DIS 11495) Atomic absorption (document ISO / WD 13371) Silver: Volumetric (potentiometric) method using of potassium bromide (document EN 31427 / ISO 11427: 1993) As corrected with technical misprint I: 1994: "Paragraph 4.2: Potassium bromide, solution, c (KBr) = 0.1 mol / l". Volumetric (potentiometric) method using sodium chloride or potassium chloride (document ISO 13756: 1997) Annex II Dimensions of the common hallmarks Sizes (height) of the common hallmark: For platinum: not less than 0.75 mm For gold: -1.5 mm –1.0 mm –0.75 mm –0.5 mm (For palladium: not smaller than 0.75mm) Applies only after the entry into force of the amendment to Article 2 of the Convention. For silver: -4.0 mm -2.0 mm -1.5 mm -1.0 mm -0.75 mm

Declaration by the Republic of Austria regarding the amendment of the annexes to the convention on the testing and designation of precious metal objects The Republic of Austria declares that the competences assigned to the Standing Committee in the present annexes require a corresponding amendment of the convention and amendments to the convention and the annexes to the procedure of Article 11 currently in force. Approval pursuant to Article 11 (1) of the Convention was given to the Government of Sweden on September 10, 1999; the amendments entered into force on March 10, 2000 in accordance with Article 11, Paragraph 2 of the Convention.