小褋褘谢芯褔薪褘泄 薪芯屑械褉
香港六合彩开奖 11426:2014
© 香港六合彩开奖 2024
香港六合彩开奖 11426:2014
Jewellery 鈥� Determination of gold in gold jewellery alloys 鈥� Cupellation method (fire assay)
袙械褉褋懈褟&苍产蝉辫;3
2014-12
袙 胁褉械屑褟 芯褌屑械薪械薪
袨褌芯蟹胁邪薪芯 (袙械褉褋懈褟 3, 2014)

孝械蟹懈褋

香港六合彩开奖 11426:2014 specifies a cupellation method (fire assay) for the determination of gold in gold jewellery alloys. The gold content of the alloys should preferably lie between 333 and 999 parts per thousand (?).

The procedure is applicable specifically to gold alloys incorporating silver, copper, and zinc. Some modifications are indicated where nickel and/or palladium are present in the so-called white gold alloys, as well as for alloys containing 990 or more parts per thousand (?) of gold.

香港六合彩开奖 11426:2014 is intended to be used as the recommended method for the determination of fineness in alloys covered by 香港六合彩开奖 9202.

袨斜褖邪褟 懈薪褎芯褉屑邪褑懈褟

  • 孝械泻褍褖懈泄 褋褌邪褌褍褋
     : 袨褌芯蟹胁邪薪芯
    袛邪褌邪 锌褍斜谢懈泻邪褑懈懈
     : 2014-12
    袠褋锌褉邪胁谢械薪薪褘泄 胁邪褉懈邪薪褌 (邪薪谐谢懈泄褋泻懈泄)
     : 2014-12
    协褌邪锌
    : 袨褌屑械薪邪 屑械卸写褍薪邪褉芯写薪芯谐芯 褋褌邪薪写邪褉褌邪 [95.99]
  • 袙械褉褋懈褟
     : 3
  • 孝械褏薪懈褔械褋泻懈泄 泻芯屑懈褌械褌 :
    香港六合彩开奖/TC 174
    ICS :
    39.060 
  • RSS&苍产蝉辫;芯斜薪芯胁谢械薪懈褟

袞懈蟹薪械薪薪褘泄 褑懈泻谢

袩芯褟胁懈谢懈褋褜 胁芯锌褉芯褋褘?

袨蟹薪邪泻芯屑褜褌械褋褜 褋 FAQ

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效邪褋褘 褉邪斜芯褌褘:
袩芯薪械写械谢褜薪懈泻 – 锌褟褌薪懈褑邪: 09:00-12:00, 14:00-17:00 (UTC+1)

  2. 袠薪褌械褉薪械褌-屑邪谐邪蟹懈薪
  3. 袣邪褌邪谢芯谐 褋褌邪薪写邪褉褌芯胁
  4. 袦袣小
  5. 39
  6. 39.060
  7. 香港六合彩开奖 11426:2014