Precious metals. The finenesses of solders used with precious metal jewellery alloys
贵金属 贵金属珠宝合金用焊料的细度
发布日期:
2000-11-15
英国已被授予与EN 1904的A偏差,因为许多要求与1973年《标志法》的要求相冲突。交叉引用:EN 29202COM(93)322-SYN 472:关于贵金属制品的理事会指令提案。EN ISO 11210EN ISO 11426EN ISO 11489EN ISO 11490EN 31427prEN 31494prEN 31495
The UK has been granted an A-deviation from EN 1904 as a number of requirements conflict with those of the Hallmarking Act 1973.Cross References:EN 29202COM(93) 322 - SYN 472: Proposal for a Council Directive on articles of precious metal.EN ISO 11210EN ISO 11426EN ISO 11489EN ISO 11490EN 31427prEN 31494prEN 31495