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sklademVydáno: 1995-04-15
BS 7755-3.6:1995
Soil quality. Chemical methods Determination of phosphorus. Spectrometric determination of phosphorus soluble in sodium hydrogen carbonate solution
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| Označení normy: | BS 7755-3.6:1995 |
| Počet stran: | 10 |
| Vydáno: | 1995-04-15 |
| ISBN: | 0 580 24130 0 |
| Status: | Standard |
DESCRIPTION
BS 7755-3.6:1995
This standard BS 7755-3.6:1995 Soil quality. Chemical methods is classified in these ICS categories:
- 13.080.10 Chemical characteristics of soils
This International Standard specifies an extraction method and analytical conditions to determine the content of soil phosphorus soluble in sodium hydrogen carbonate solution. After the extraction step, two different methods of colour development are possible. Subclause 4.2 specifies colour development at room temperature. Subclause 4.3 specifies colour development after heating to a high temperature. This International Standard is applicable to all types of soils.