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prEN 17731:2026-01 - Draft

Growing media - Methods for the determination of the electrical conductivity, pH, dry matter, quantity, total copper and zinc content, water soluble chloride content, and CaCl2/DTPA extractable nitrogen, P2O5 and K2O content

German title: Kultursubstrate - Verfahren zur Bestimmung der elektrischen Leitfähigkeit, des pH-Werts, der Trockensubstanz, der Menge, des Gesamtkupfer- und -zinkgehalts, des Gehalts an wasserlöslichem Chlorid und des Gehalts an mit CaCl2/DTPA extrahierbarem Stickstoff, P2O5 und K2O
Publication date: 2026-01
Original language: English
Pages: 10

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