2,4-D TC, SL
2.4-D TECHNICAL MATERIAL : FAO Specification 1/TC (November 2023*)
1 Description
The material shall consist of 2,4-D together with related manufacturing impurities, in the form of white to brown crystals, granules, flakes, powder or lumps with faint phenolic odour, and shall be free from visible extraneous matter and added modifying agents.
2 Active Ingredient
2.1 Identity tests (1/TC/M3/2, CIPAC 1C, p. 2060)
The active ingredient shall comply with an identity test and, where the identity remains in doubt, shall comply with at least one additional test.
2.2 2,4-D content (1/TC/M3/5.2, CIPAC 1C, p.2062)
The 2,4-D content shall be declared (not less than 960 g/kg) and, when determined, the average measured content shall not be lower than the declared minimum content.
3 Relevant impurities
3.1 Free phenols (MT 69.1, CIPAC F, p.197; MT 155.1, CIPAC F, p. 362) (Note 3)
Maximum: 3 g/kg, calculated as 2,4-dichlorophenol.
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