Haloxyfop-p-methyl TC, EC

Haloxyfop-p-methyl TC, EC 

HALOXYFOP-P-METHYL TECHNICAL MATERIAL 

FAO Specification 526.201/TC (May 2012*) 

This specification, which is PART ONE of this publication, is based on an evaluation of data submitted by the manufacturer whose name is listed in the evaluation report (526.201/2011). It should be applicable to TC produced by this manufacturer but it is not an endorsement of those products, nor a guarantee that they comply with the specifications. The specification may not be appropriate for TC produced by other manufacturers. The evaluation report (526.201/2011), as PART TWO, forms an integral part of this publication 

1 Description 

The material shall consist of haloxyfop-P-methyl together with related manufacturing impurities, and shall be at ambient temperatures a light amber, viscous liquid free from visible extraneous matter and added modifying agents. 

2 Active ingredient 

2.1 Identity tests (526.201/TC/M/2, Note 1) 

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 Haloxyfop-P methyl content (526.201/TC/M/3, Note 1) 

The haloxyfop-P-methyl content shall be declared (not less than 940 g/kg) and, when determined, the average measured content shall not be lower than the declared minimum content.

HALOXYFOP-P-METHYL EMULSIFIABLE CONCENTRATE 

FAO Specification 526.201 / EC (May 2012*) 

This specification, which is PART ONE of this publication, is based on an evaluation of data submitted by the manufacturer whose name is listed in the evaluation report (526.201/2011). It should be applicable to relevant products of this manufacturer but it is not an endorsement of those products, nor a guarantee that they comply with the specifications. The specification may not be appropriate for the products of other manufacturers. The evaluation report (526.201/2011) as PART TWO forms an integral part of this publication. 

1 Description 

The material shall consist of haloxyfop-P-methyl, complying with the requirements of FAO/WHO specification 526.201/TC (May 2012), in the form of an emulsifiable concentrate, dissolved in suitable solvents, together with any other necessary formulants. It shall be in the form of a stable homogeneous liquid, free from visible suspended matter and sediment, to be applied as an emulsion after dilution in water. 

2 Active ingredient 

2.1 Identity tests (526/EC/(M)/2 Note 1) 

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 Haloxyfop-P-methyl content (526/EC/(M)/3 Note 1) 

The haloxyfop-P-methyl content shall be declared (g/l at 20 ± 2ºC, Note 2) and, when determined, the average content measured shall not differ from that declared by more than the following tolerances:

Declared content in g/kg or g/l Tolerance 

Above 25 up to 100 ± 10% of the declared content 

Above 100 up to 250 ± 6% of the declared content 

Above 250 up to 500 ± 5% of the declared content 

Above 500 ± 25 g/kg or g/L of the declared content 

4 Physical properties (Note 3) 

4.1 Emulsion stability and re-emulsification (MT 36.3, CIPAC Handbook K, p 137, 2003) 

The formulation, when diluted at 30 ± 2°C with CIPAC Standard Waters A and D, shall comply with the following:

Time after dilution Limits of stability, MT 36.3 

0 h 

0.5 h 

2 h 

24 h 

24.5 h 

Note: tests at 24 h are required only where results at 2 h are in doubt Initial emulsification complete 

"Cream", maximum: 2 ml 

"Cream", maximum: 2 ml 

"Cream", maximum: 2 ml 

"Free oil", maximum: Trace 

Re-emulsification complete 

"Cream", maximum: 2 ml 

"Free oil", maximum: Trace 

4.2 Persistent foam (MT 47.2, CIPAC Handbook F, p 152, 1995) (Note 6) 

Maximum: 40 ml after 1 min. 

5 Storage stability 

5.1 Stability at 0°C (MT 39.3, CIPAC Handbook J, p 126, 2000) 

After storage at 0 ± 2°C for 7 days, the volume of solid and/or liquid which separates shall not be more than 0.3 ml. 

5.2 Stability at elevated temperature (MT 46.3, CIPAC Handbook J, p 128, 2000) 

After storage at 54 ± 2°C for 14 days (Note 7), the determined average active ingredient content must not be lower than 95% relative to the determined average content found before storage (Note 8) and the formulation shall continue to comply with the clause for: 

-emulsion stability and re-emulsification (4.1)