DIN EN 13650:2002
土壤改良和生长介质.王水可溶元素萃取
Soil improvers and growing media - Extraction of aqua regia soluble elements; German version EN 13650:2001
- 标准号
- DIN EN 13650:2002
- 发布
- 2002年
- 发布单位
- 德国标准化学会
- 当前最新
- DIN EN 13650:2002
- 被代替标准
- DIN 11512-16:1999
- 适用范围
- This European Standard specifies a method for the routine determination for aqua regia soluble elements as listed in Annex A and recommends suitable analytical methods for the determination of the extracted elements from soil improvers and growing media. Materials containing more than 34 % (m/m) organic matter will require treatment with additional nitric acid (see note 8.1, note 3) with high solute concentrations in extract solutions, spectral interference's and background enhancement should be expected.