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BS EN 13654-1 EN 13654-1 Soil improvers and growing media. Determination of nitrogen. Part 1: Modified Kjeldahl method

Source:
CEN
Committee:
AW/20 - Topsoil, other growing media and turf
Categories:
Fertilizers
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This document specifies a method for the determination of nitrogen in soil improvers and growing media. The Kjeldahl method determines ammonium-N, nitrate-N, nitrite-N and organic N content of soil improvers and growing media. Nitrogen in N-N-linkages, N-O-linkages and some heterocyclics (especially pyridine) is only partially determined [6], [7], [8].

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