Standard

NEN-EN 13266:1998 Ontw. en

Slow release fertilizers - Determination of the rate of release of nutrients - Method for coated fertilizers

  • This norm is withdrawn since 14-11-2001

24,00 29,04 Incl BTW

About norm

Status Withdrawn
Number of pages 11
Committee Meststoffen
Published on 01-08-1998
Language English
This European Standard specifies a method for the determination of the slow release properties of nutrients from coated fertilizers. pH-dependent hydrolysis and degradation by biological or microbial mechanisms are excluded. The specified method is only applicable to products releasing any nutrients by means of a non-biological process (i.e. those where the nutrients are released by a physical mechanism). Microbial attack on the coating (e.g. sulfur coated fertilizers) and the consequences thereof are not measurable by the technique described. This method involves a lengthy process which may not be appropriate for day to day testing purposes. Accelerated methods may be used provided they are correlated with this standard. An example of such an accelerated method is described in annex B. Regression analysis may also be used for this purpose.

Details

ICS-code 65.080
Dutch title Langzaam werkende meststoffen - Bepaling van de snelheid van afgifte van voedingsstoffen - Methode voor omhulde meststoffen
English title Slow release fertilizers - Determination of the rate of release of nutrients - Method for coated fertilizers
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