Soil improvers and growing media - Digestion by aqua regia for subsequent determination of elements

Comment end date 2026-01-05

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Project stage codes

1. Decision on WI Proposal

2. Projektas

3. Viešoji apklausa

From 2025-10-24 till 2026-01-05

4. Closure of enquiry

5. Submission to Formal Vote

Organisation

CEN Europos standartizacijos komitetas

ICS

65.080 - Fertilizers

Technical Committee

TK 57 Fertilizers

ForeignTC'S

CEN/TC 223

Number of comments

Comment start date

2025-10-24

Scope

This document specifies a method for the digestion of soil improvers and growing media using an aqua regia digestion. Materials containing more than about 28 % (m/m) organic matter will require treatment with additional nitric acid. With high solute concentrations in extract solutions, spectral interferences and background enhancement should be expected.

Relations

Pakeis

prEN 13650