BS EN 12945:2014+A1:2016规定了两种方法来测定产品的中和值（NV） 石灰材料。方法A适用于除硅酸盐石灰材料外的所有石灰材料。方法B适用于所有石灰材料。这两种方法都没有正确地考虑到所含物质的潜在中和值 P2O5含量超过3%。对含3%以上的产品进行更准确的农艺评估 P2O5根据EN 14984测定浸灰效率。注:ISO 6598[1]和ISO 7497[2]中描述的方法可用于测定P2O5 所容纳之物[3]和[4]中给出了关于磷分析的更多信息。交叉引用:EN 1482-2EN 12944-3: 2001EN ISO 3696ISO 3696ISO 3310-1ISO 6598ISO 749777/535/EECEN 1482-1EN 1482-3ISO 5725:1994EN 14984包含以下内容:修订，2016年11月。修订并替换BS EN 12945:2014

BS EN 12945:2014+A1:2016 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 % P2O5. For a more accurate agronomic assessment of products containing more than 3 % P2O5 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 P2O5 content. Further information on P analyses is given in [3] and [4].Cross References:EN 1482-2EN 12944-3:2001EN ISO 3696ISO 3696ISO 3310-1ISO 6598ISO 749777/535/EECEN 1482-1EN 1482-3ISO 5725:1994EN 14984Incorporates the following:Amendment, November 2016. Amends and replaces BS EN 12945:2014