Lufenuron TC, EC

Lufenuron TC, EC

LUFENURON TECHNICAL MATERIAL

FAO Specification 704/TC (May 2008∗)

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 (704/2007). 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 (704/2007), as PART TWO, forms an integral part of this publication.

1 Description

The material shall consist of lufenuron together with related manufacturing impurities, in the form of a white to pale yellow powder free from visible extraneous matter and added modifying agents.

2 Active ingredient

2.1 Identity tests (CIPAC 704/TC/M/-, 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 Lufenuron content (CIPAC 704/TC/M/-, Note 1)

The lufenuron content shall be declared (not less than 980 g/kg) and when determined, the average measured content obtained shall not be lower than the declared minimum content.

LUFENURON EMULSIFIABLE CONCENTRATE

FAO Specification 704/EC (May 2008∗)

This specification, which is PART ONE of this publication, is based on an evaluation of data submitted by the manufacturer whose names is listed in the evaluation report (704/2007). It should be applicable to relevant products of this manufacturer, and those of any other formulators who use only TC from the evaluated source. The specification is not an endorsement of those products, nor a guarantee that they comply with the specification. The specification may not be appropriate for the products of other manufacturers who use TC from other sources. The evaluation report (704/2007), as PART TWO, forms an integral part of this publication.

1 Description

The material shall consist of technical lufenuron, complying with the requirements of FAO specification 704/TC (May 2008), dissolved in suitable solvents, together with any other necessary formulants. It shall be in the form of a clear to slightly hazy, stable homogeneous liquid, free from visible suspended matter and sediment, to be applied as an emulsion after dilution with water.

2 Active ingredient

2.1 Identity tests (CIPAC 704/EC/M/-, 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 Lufenuron content (CIPAC 704/EC/M/-, Note 1)

The lufenuron content shall be declared (g/kg or g/l at 20 ± 2°C, Note 2) and, when determined, the content obtained shall not differ from that declared by more than the following tolerances:

Declared content, g/kg or g/l at 20 ± 2°C             Permitted tolerance

above 25 g/l up to 100 g/l                                       ± 10% of the declared content

Note: the upper limit is included in the range

3 Physical properties

3.1 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

0 h                                    Initial emulsion complete

0.5 h                                 ‘Cream’, maximum: 1 ml

2.0 h                                 ‘Cream’, maximum: 2 ml

‘Free oil’, maximum: trace

24 h                                  Re-emulsification complete

24.5 h                               ‘Cream’, maximum: 1 ml

‘Free oil’, maximum: trace

Note: tests after 24 h are required only where the results at 2 h are in doubt

3.2 Persistent foam (MT 47.2, CIPAC Handbook F, p.152, 1995) (Note 3)

Maximum: 60 ml after 1 minute.

4 Storage stability

4.1 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 0.1 ml.

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

After storage at 54 ± 2°C for 14 days, the determined average active ingredient content must not be lower than 95%, relative to the determined average content found before storage (Note 4) and the formulation shall continue to comply with the clause for:

- emulsion stability and re-emulsification (3.1).