FprEN 13651

Soil improvers and growing media - Extraction of calcium chloride/DTPA (CAT) soluble nutrients and elements FprEN 13651

Publication date:   Oct 23, 2025

General information

45.99   Dispatch of FV draft to CCMC   Jul 27, 2026

CEN

CEN/TC 223 Soil improvers and growing media

European Norm

65.080   Fertilizers

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Scope

This document specifies an extraction method for the routine determination of calcium chloride/DTPA (CAT-method) extractable nutrients and elements in organic soil improver, inorganic soil improver, growing medium, compost and digestate.
NOTE This method has been validated in an interlaboratory study with specific products that were present on the market during the study (as included in Annex B, being coir pith (0 mm to12 mm, washed and buffered), composted bark (20 mm to 40 mm), biowaste compost (Rottegrad 3), green compost (Rottegrad 5, 0 mm to 15 mm), solid digestate (centrifuged and dried, raw sieved 0 mm to 12 mm), expanded clay (whole granules, 8 mm to 16 mm), blend 1 (white peat, green compost, wood fibre, lime, inorganic fertilizer (NPK + micro elements)), blend 2 (white peat, black peat, expanded perlite, lime, organic fertilizer) and blend 3 (white peat, black peat, clay, inorganic fertilizer (NPK + micro elements))).

Related legislation

Legislation related to this standard

2019/1009

Regulation (EU) 2019/1009 of the European Parliament and of the Council of 5 June 2019 laying down rules on the making available on the market of EU fertilising products and amending Regulations (EC) No 1069/2009 and (EC) No 1107/2009 and repealing Regulation (EC) No 2003/2003 (Text with EEA relevance)

Life cycle

PREVIOUSLY

PUBLISHED
EN 13651:2001

NOW

IN_DEVELOPMENT
FprEN 13651
45.99 Dispatch of FV draft to CCMC
Jul 27, 2026




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