IFA Technical Recommendations

Method Harmonization Working Group

With the acceleration of global fertilizer trade, IFA’s diverse membership has experienced an increasing number of contractual disputes due to the variable use of methods and procedures to sample and analyze international product shipments.

In a member-driven initiative, a working group was formed to address this matter in 2010. The working group consists of around 15 top fertilizer chemists from key global producers, traders, inspection companies and laboratories who meet several times a year to discuss, coordinate, and plan working group actions. The objective is to compile and review fertilizer standards and publish "best practice" recommendations on the sampling and laboratory analysis that are made publicly available for the global fertilizer industry. The working group also liaises with international normalization bodies to assist in overcoming these obstacles and promote the harmonization of global fertilizer laboratory procedures.

For more information about the Method Harmonization working group work program and future meetings, as well as to suggest topics please contact the IFA Secretariat.

Fertilizer Sampling and Analysis Recommandations

Below is a list of best practice recommendations published by the IFA working group. These guidelines should be considered reference documents for the international trade of fertilizer products. They should not be considered to be international standards nor should they take precedence over existing national and regional regulations or standards.

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Liquid Fertilizer (non-pressurized) Sampling - Read More ... 2019Public4/5/2019Download57103ac2204a-3e07-4389-97b9-c9284b0d4b80
Method evaluation in total Nitrogen in solid fertilizers - Read More ... 2019Public4/5/2019Download5711297b26f5-9aea-4537-80e5-e4b948fcc02f
Fertilizer Bulk Bag Sampling - Read More ... 2017Public5/23/2017Download53315007c9a9-1711-47dd-9a0d-e3fc999d99d7
Fertilizer Transportation Sampling - Read More ... 2015Public4/21/2016Download5177ef7edc0a-1324-4e31-a91f-c538cc86332b
Review of Analytical Methods for Slow- and Controlled-Release Fertilizers - Read More ... 2014Public11/21/2014Download48925f39968d-b09b-4670-ba1e-c1a7204dbe8e
Evaluation of Commonly Used Methods for the Analysis of Acid-Soluble Phosphate in Internationally Traded Inorganic Fertilizers - Read More ... 2014Public7/25/2014Download48832d17dbcc-62bf-4bb6-a098-10a3a3a15dea
Determination of Moisture of Fertilizers - Read More ... 2014Public7/18/2014Download48799b2cced0-8316-4e92-b918-711eb1e96a70
Fertilizer Bag Sampling (<= 50 kg) - Read More ... 2014Public7/18/2014Download48805b394dba-7238-4ce2-88fa-dec91e24406b
Recommended Best Practice for the Analysis of Total Nitrogen Content in Urea Ammonium Nitrate (UAN) Liquid Fertilizer - Read More ... 2011Public12/17/2011Download4772ab68fefd-e1c4-4ce5-a854-491fcf9f5d0f
Proficiency Guidelines for the Sampling of Bulk Fertilizer Shipments - Read More ... 2010Public7/26/2010Download4771e564bc35-db93-41a4-b6df-0be68157be2a