Clodinafop-propargyl TC, WP, EC

Clodinafop-propargyl TC, WP, EC

CLODINAFOP-PROPARGYL TECHNICAL MATERIAL

FAO specification 683.225 / TC (June 2020)

This specification, which is PART ONE of this publication, is based on an evaluation of data submitted by the manufacturers whose name are listed in the evaluation reports (683.225/2006 & 683.225/2019). It should be applicable to TC produced by this manufacturer but it is not an endorsement of it, nor a guarantee that it complies with the specification. The specification may not be appropriate for TC produced by other manufacturers. The evaluation reports 683.225/2006 & 683.225/2019, as PART TWO, form an integral part of this publication.

1 Description

The material shall consist of clodinafop-propargyl together with related manufacturing impurities and shall be a white or light beige to light brown powder, free from visible extraneous matter and added modifying agents.

2 Active ingredient

2.1 Identity tests (683/TC/M/2, CIPAC Handbook M, p. 27, 2009)

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 Clodinafop-propargyl content (683/TC/M/3.1 and 683/TC/M/3.2, CIPAC Handbook M, p. 27 and p. 30, 2009) (Note 1)

The clodinafop-propargyl 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.

CLODINAFOP-PROPARGYL WETTABLE POWDER

FAO Specification 683.225 / WP (June 2020)

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 (683.225/2006). 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 manufacturers who use TC from other sources. The evaluation report 683.225/2006, as PART TWO, forms an integral part of this publication.

1 Description

The material shall consist of technical clodinafop-propargyl, complying with the requirements of FAO Specification 683.225/TC (June 2020), together with filler(s) and any other necessary formulants. It shall be in the form of a fine powder free from visible extraneous matter and hard lumps.

2 Active ingredient

2.1 Identity tests (683.225/WP/M/2, CIPAC Handbook M, p. 32, 2009)

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 Clodinafop-propargyl content (683.225/WP/M/3.1 and 683.225/WP/M/3.2, CIPAC Handbook M, p. 32, 2009), (Note 1)

The clodinafop-propargyl content shall be declared (g/kg) and, when determined, the average measured content shall not differ from that declared by more than the following tolerance:

3 Physical properties

3.1 pH range (MT 75.3, CIPAC Handbook J, p.131, 2000)

The pH of an aqueous dispersion shall be 4.0 to 8.0.

3.2 Wet sieve test (MT 185, CIPAC Handbook K, p.149, 2003)

Maximum: 2% retained on a 75 μm test sieve.

3.3 Suspensibility (MT 184.1) (Notes 2, 3 & 4)

A minimum of 60% of the clodinafop-propargyl content found under 2.2 shall be in suspension after 30 min in CIPAC standard water D at 25 ± 5°C.

3.4 Persistent foam (MT 47.3, CIPAC Handbook O, p.177, 2017) (Note 5)

Maximum: 60 ml after 1 min.

3.5 Wettability (MT 53.3.1, CIPAC Handbook F, p.165, 1995)

The formulation shall be completely wetted in 1 min without swirling.

4 Storage stability

4.2 Stability at elevated temperature (MT 46.4) (Note 6)

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 7) and the formulation shall continue to comply with the clauses for:

- pH range (3.1),

- wet sieve test (3.2),

- suspensibility (3.3),

- wettability (3.5).

CLODINAFOP-PROPARGYL EMULSIFIABLE CONCENTRATE

FAO Specification 683.225 / EC (June 2020)

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 (683.225/2006). 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 manufacturers who use TC from other sources. The evaluation report 683.225/2006, as PART TWO, forms an integral part of this publication.

1 Description

The material shall consist of technical clodinafop-propargyl, complying with the requirements of FAO specification 683.225/TC (June 2020), 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 in water.

2 Active ingredient

2.1 Identity tests (683.225/EC/M/2, CIPAC Handbook M, p. 34, 2009)

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 Clodinafop-propargyl content (683.225/EC/M/3.1 and 683.225/EC/M/3.2, CIPAC Handbook M, p. 34, 2009) (Note 1)

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

3 Physical properties

3.1 pH range (MT 75.3, CIPAC Handbook J, p.131, 2000)

The pH of an aqueous dispersion shall be 4.0 to 8.0.

3.2 Emulsion stability and re-emulsification (MT 36.3, CIPAC Handbook K, p.137, 2003) (Note 3)

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

3.3 Persistent foam (MT 47.3, CIPAC Handbook O, p.177, 2017) (Note 4)

Maximum: 40 ml after 1 min.

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 0.3 ml.

4.2 Stability at elevated temperature (MT 46.4) (Note 5)

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 6) and the formulation shall continue to comply with the clauses for:

- pH range (3.1);

- emulsion stability and re-emulsification (3.2).