British Standards Institution

Source:: CEN
Committee:: AW/20 - Topsoil, other growing media and turf
Categories:: Fertilizers
Comment period start date:: 23/10/2025
Comment period end date:: 16/12/2025
Number of comments:: 1

Comment by:

16th Dec

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.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

11/07/2025

3. Public Comments

Public Comments start date:

23/10/2025

Public Comments end date:

16/12/2025

4. Comment Resolution

Comment Resolution start date:

08/03/2027

5. Approval

6. Publication

Publication start date:

27/05/2027

Learn more about the standards development process

Standards Development

BS EN 13651 EN 13651 Soil improvers and growing media. Extraction of calcium chloride/DTPA (CAT) soluble nutrients

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