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precious metal alloys precious metal dental cast dental restorations metal-ceramic dental restorations qc/t shrimp white spot disease plasma- atomic emission spectrometry scopethis part
GB/T 17168-2008 in English

GB/T 17168-2008 in English

SUPERSEDED

Dental casting precious metal alloys

  • Issued on:2008-03-31
  • Implemented on:2008-09-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $220.00
$214.00
Standard No: GB/T 17168-2008
Document status: SUPERSEDED
Superseded by: GB 17168-2013 Dentistry―Metallic materials for fixed and removable restorations and appliances
Superseded on: 2015-06-01
Title in English: Dental casting precious metal alloys
Title in Chinese: 牙科铸造贵金属合金
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 1~3 business days
Issued on: 2008-03-31
Implemented on: 2008-09-01
ICS Classification: 11.060.10-Dental materials
Chinese Classification: H68-Precious metals and their alloys
Professional Classification: GB-National Standard
Related Keywords: precious metal alloys
precious metal
dental cast
dental restorations
metal-ceramic dental restorations
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《GB/T 17168-2008牙科铸造贵金属合金》由TC243(全国有色金属标准化技术委员会)归口,主管部门为中国有色金属工业协会。
本标准规定了牙科铸造贵金属合金的分类、要求、试验方法、包装、标识和使用说明书等。本标准适用于制作牙科修复体和器件的铸造贵金属合金。本标准不适用于金属-陶瓷牙科修复体的金属基体材料。 本标准修改采用ISO1562:2004 《牙科学 铸造金合金》和ISO8891:1998 《贵金属含量25%~75%的牙科铸造合金》。 本标准根据ISO1562:2004 和ISO8891:1998重新起草 本标准代替GB/T17168―1997《齿科铸造贵金属合金》,与其相比主要变化如下:
―――按照目前较通行的用语,将标准名称改为“牙科铸造贵金属合金”;
―――增加了“随模冷却”、“内包装”、“电化学行为”等内容;
―――将“产品类型”改为“分类”;
―――用“维氏硬度”代替“维氏硬度按铸态提供实测值”;
―――用“耐腐蚀性”代替“腐蚀试验”;
―――用“抗晦暗性”代替“失泽试验”;
―――去掉“供应状态”、“订货单内容”、“包装、标志、运输和贮存”等内容;
―――增加“取样”、“试样制备”及相关示意图;
―――采用新的试验方法;
―――将“检验规则”改为“包装、标识和说明书”;
―――将原“附录A 腐蚀试验―――静态浸泡试验”改为“附录A 表面腐蚀试验法―――静态浸泡试验”;
―――将原“附录B 失泽试验―――硫化钠试验”改为“附录B 抗晦暗试验法―――硫化钠试验”;
―――增加“附录C 电化学试验法―――电动势试验”。


Scope

This standard stipulates that the content (mass fraction) of gold and platinum group metals is 25% to 75%, and the content (mass fraction) of gold is not less than 60%, and the total amount of gold plus platinum group metals (platinum, palladium, iridium, ruthenium and rhodium) Classification, requirements, test methods, packaging, labeling and instructions for use of dental cast precious metal alloys with a content (mass fraction) not less than 75%. This standard applies to cast precious metal alloys for dental restorations and components. This standard does not apply to metal matrix materials for metal-ceramic dental restorations.

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