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ISO 3944:2026PublishedFertilizers — Determination of bulk density (loose)International Standard · Published 20 Feb 2026 · ISO/TC 134 ISO 3963:1977PublishedFertilizers — Sampling from a conveyor by stopping the beltInternational Standard · Published 1 Jul 1977 · ISO/TC 134 ISO 5306:1983PublishedFertilizers — Presentation of sampling reportsInternational Standard · Published 1 Dec 1983 · ISO/TC 134 ISO/TR 5307:1991PublishedSolid fertilizers — Derivation of a sampling plan for the evaluation of a large deliveryTechnical Report · Published 21 Nov 1991 · ISO/TC 134 ISO 5311:2026PublishedFertilizers — Determination of bulk density (tapped)International Standard · Published 20 Feb 2026 · ISO/TC 134 ISO 5313:2026PublishedHigh nitrogen content, straight ammonium nitrate fertilizers — Determination of oil retentionInternational Standard · Published 30 Jan 2026 · ISO/TC 134 ISO 5314:1981PublishedFertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillationInternational Standard · Published 1 May 1981 · ISO/TC 134 ISO 5315:1984PublishedFertilizers — Determination of total nitrogen content — Titrimetric method after distillationInternational Standard · Published 1 May 1984 · ISO/TC 134 ISO 5317:1983PublishedFertilizers — Determination of water-soluble potassium content — Preparation of the test solutionInternational Standard · Published 1 May 1983 · ISO/TC 134 ISO 6181:2023PublishedFertilizers and soil conditioners — Liquid methylene-urea slow release fertilizers — General requirementsInternational Standard · Published 17 Mar 2023 · ISO/TC 134 ISO 6598:1985PublishedFertilizers — Determination of phosphorus content — Quinoline phosphomolybdate gravimetric methodInternational Standard · Published 19 Sep 1985 · ISO/TC 134 ISO 6650:2023PublishedFertilizers, soil conditioners and beneficial substances — Simultaneous determination of N-(n-Butyl) thiophosphoric triamide and dicyandiamide by high-performance liquid chromatographyInternational Standard · Published 18 Oct 2023 · ISO/TC 134 ISO 7407:1983PublishedFertilizers — Determination of acid-soluble potassium content — Preparation of the test solutionInternational Standard · Published 1 May 1983 · ISO/TC 134 ISO 7408:1983PublishedFertilizers — Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide — Titrimetric methodInternational Standard · Published 1 Dec 1983 · ISO/TC 134 ISO 7409:2018PublishedFertilizers — Marking — Presentation and declarationsInternational Standard · Published 9 Mar 2018 · ISO/TC 134 ISO 7410:1983PublishedFertilizers and soil conditioners — Final samples — Practical arrangementsInternational Standard · Published 1 Apr 1983 · ISO/TC 134 ISO 7497:1984PublishedFertilizers — Extraction of phosphates soluble in mineral acidsInternational Standard · Published 1 Oct 1984 · ISO/TC 134 ISO/TR 7553:1987PublishedFertilizers — Sampling — Minimum mass of increment to be taken to be representative of the total sampling unitTechnical Report · Published 25 Jun 1987 · ISO/TC 134 ISO 7742:1988PublishedSolid fertilizers — Reduction of samplesInternational Standard · Published 23 Jun 1988 · ISO/TC 134 ISO 7837:1992PublishedFertilizers — Determination of bulk density (loose) of fine-grained fertilizersInternational Standard · Published 9 Jul 1992 · ISO/TC 134 ISO 7851:2022PublishedFertilizers, soil conditioners and beneficial substances — ClassificationInternational Standard · Published 29 Apr 2022 · ISO/TC 134 ISO 8157:2022PublishedFertilizers, soil conditioners and beneficial substances — VocabularyInternational Standard · Published 30 Sep 2022 · ISO/TC 134 ISO 8397:1988PublishedSolid fertilizers and soil conditioners — Test sievingInternational Standard · Published 28 Jan 1988 · ISO/TC 134 ISO 8398:1989PublishedSolid fertilizers — Measurement of static angle of reposeInternational Standard · Published 22 Jun 1989 · ISO/TC 134 ISO 8634:1991PublishedSolid fertilizers — Sampling plan for the evaluation of a large deliveryInternational Standard · Published 23 May 1991 · ISO/TC 134