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2026
Fertilizers and soil conditioners — Water soluble fertilizer — General requirements
2026
Testing methods for fertilizers determination of the water soluble potassium in the potassium fertilizers
2026
Fertilizers — Determination of bulk density (tapped)
2026
Liming materials — Determination of size distribution by dry and wet sieving
2026
Solid fertilizers — Derivation of a sampling plan for the evaluation of a large delivery
2026
Fertilizers — Determination of phosphorus content — Quinoline phosphomolybdate gravimetric method
2026
Fertilizers and liming materials —Sampling and sample preparation—2:Sample preparation
2026
Solid fertilizers — Sampling plan for the evaluation of a large delivery
2026
Fertilizers — Determination of ammoniacal nitrogen
2026
Fertilizers — Determination of urea condensates using high-performance liquid chromatography (HPLC) — Isobutylidenediurea and crotonylidenediurea (method A) and methylen-urea oligomers (method B)