Fertilizers and soil conditioners Controlled-release fertilizer General requirements

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

04-07-2016

Publisher

International Organization for Standardization

ISO 18644:2016 specifies the requirements for testing methods, sampling and preparation of test sample, marking and labelling, as well as package, transport, and storage of controlled-release fertilizer.

ISO 18644:2016 is applicable to controlled-release products having one or more primary fertilizer nutrient (nitrogen and/or phosphorous and/or potassium) in a controlled-release form. They can be made by bulk blending (BB) fertilizers or by special processes.

DevelopmentNote	Supersedes ISO/DIS 18644. (04/2016)
DocumentType	Standard
Pages	6
ProductNote	THIS STANDARD ALSO REFERS TO AOAC 955.04,AOAC 958.01,AOAC 958.02
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
BS ISO 18644:2016	Identical

ISO 8157:2015	Fertilizers and soil conditioners — Vocabulary
EN 13266:2001	Slow-release fertilizers - Determination of the release of the nutrients - Method for coated fertilizers
ISO 8397:1988	Solid fertilizers and soil conditioners — Test sieving
ISO 7410:1983	Fertilizers and soil conditioners — Final samples — Practical arrangements
ISO 8633:1992	Solid fertilizers — Simple sampling method for small lots
ISO 6598:1985	Fertilizers — Determination of phosphorus content — Quinoline phosphomolybdate gravimetric method
ISO 5315:1984	Fertilizers — Determination of total nitrogen content — Titrimetric method after distillation
ISO 7409:1984	Fertilizers Marking Presentation and declarations
ISO 7742:1988	Solid fertilizers — Reduction of samples
ISO 17319:2015	Fertilizers and soil conditioners Determination of water-soluble potassium content Potassium tetraphenylborate gravimetric method