DIN EN ISO 11427-2016 珠宝.银合金首饰中含银量的测定.溴化钾容量法(电位滴定)(ISO 11427-2014).德文版本EN ISO 11427-2016
Jewellery - Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide (ISO 11427:2014); German version EN ISO 11427:2016