G21;B13 标准查询与下载
共找到 3 条与 相关的标准，共 1 页
Contains some of the theoretical background to the derivation of formulae for calculating the minimum mass of an increment and gives examples of values in tables.
Fertilizers - Sampling - Recommendations for minimum mass of increment of a solid fertilizer to be taken to be representative of the total sampling unit
- ICS
- 65.080
- CCS
- G21;B13
- 发布
- 1988-09-30
- 实施
- 1988-09-30
Reagents, apparatus, procedure and reporting of results.
Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
- ICS
- 65.080
- CCS
- G21;B13
- 发布
- 1986-07-31
- 实施
- 1986-07-31
Products used in agriculture - Fertilizers - Chemical analysis of ammonium phosphate.
- ICS
- 65.080
- CCS
- G21;B13
- 发布
- 1967-01-01
- 实施
- 1966-12-23
