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Normas BSI – AENOR
BS EN 12945:2014+A1:2016

BS EN 12945:2014+A1:2016

Liming materials. Determination of neutralizing value. Titrimetric methods

Fecha:
2016-11-30 /Confirmed
Comité:
CII/37
Equivalencias internacionales:

EN 12945:2014+A1:2016

Relación con otras normas BSI:

Reemplaza a: BS EN 12945:2008

Resumen:

This European Standard specifies two methods for the determination of the neutralizing value (NV) of liming materials.

Method A is applicable to all liming materials except silicate liming materials.

Method B is applicable to all liming materials.

Both methods do not correctly take into account the potential neutralizing value of material containing more than 3 % P 2O 5. For a more accurate agronomic assessment of products containing more than 3 % P 2O 5 determine the liming efficiency according to EN 14984 .

NOTE

The methods described in ISO 6598 [1] and ISO 7497 [2] can be used for the determination of P 2O 5 content. Further information on P analyses is given in [3] and [4].

Keywords:
Volumetric analysis, Chemical analysis and testing, Soil improvement, Neutralization index, Lime, Alkalinity, Agricultural chemicals
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