ISO 2366-1974 天然和人造冰晶石 钠含量的测定 火焰发射和原子吸收分光光度法
百检网 2021-08-03
标准号:ISO 2366-1974
中文标准名称:天然和人造冰晶石 钠含量的测定 火焰发射和原子吸收分光光度法
英文标准名称:Cryolite, natural and artificial; Determination of sodium content; Flame emission and atomic absorption spectrophotometric methods
标准类型:D59
发布日期:1999/12/31 12:00:00
实施日期:1999/12/31 12:00:00
中国标准分类号:D59
国际标准分类号:73.060.40
适用范围:The methods are applicable as alternatives to products for which the molar ratio NaF/AlF3 is equal to about 3. The principle of the flame emission method consists in atomization of the test solution in a flame of oxygen/hydrogen and determination by measurement of the intensity of the radiation at 589 nm. The principle of the flame atomic absorption method is based on atomization in an air/acetylene flame and measuremnt of the absorption of the 589 nm line emitted by a sodium hollow-cathode lamp. The preparation of the test solution is carried out by dissolution of a test portion in hydrochloric acid and water after attack by concentreted sulphuric acid.
百检能给您带来哪些改变?
1、检测行业全覆盖,满足不同的检测;
2、实验室全覆盖,就近分配本地化检测;
3、工程师一对一服务,让检测更精准;
4、免费初检,初检不收取检测费用;
5、自助下单 快递免费上门取样;
6、周期短,费用低,服务周到;
7、拥有CMA、CNAS、CAL等权威资质;
8、检测报告权威有效、中国通用;