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About This Item

 

Full Description

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 1482-2
EN 12944-3:2001
EN ISO 3696
ISO 3696
ISO 3310-1
ISO 6598
ISO 7497
77/535/EEC
EN 1482-1
EN 1482-3
ISO 5725:1994
EN 14984


Incorporates the following:
Amendment, November 2016. Amends and replaces BS EN 12945:2014
 

Document History

  1. BS EN 12945:2014+A1:2016

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    Liming materials. Determination of neutralizing value. Titrimetric methods

    • Most Recent
  2. BS EN 12945:2014


    Liming materials. Determination of neutralizing value. Titrimetric methods

    • Historical Version
  3. BS 12/30263890 DC


    BS EN 12945. Liming materials. Determination of neutralizing value. Titrimetric methods

    • Historical Version
  4. BS EN 12945:2008


    Liming materials. Determination of neutralizing value. Titrimetric methods

    • Historical Version
  5. BS 07/30158574 DC


    BS EN 12945. Liming materials. Determination of neutralizing value. Titrimetric methods

    • Historical Version
  6. BS EN 12945:2002


    Liming materials. Determination of neutralizing value. Titrimetric methods

    • Historical Version