Cyprodinil TC, EC, WDG

Cyprodinil TC, EC, WDG

CYPRODINIL TECHNICAL MATERIAL

FAO specification 511/TC (May 2009)

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 (511/2009). It should be applicable to relevant

products of these manufacturers 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 (511/2009) as PART TWO forms an

integral part of this publication.

1 Description

The material shall consist of cyprodinil together with related manufacturing

impurities, in the form of white to yellow flakes and shall be free from

visible extraneous matter and added modifying agent.

2 Active ingredient

2.1 Identity tests (CIPAC 511/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 Cyprodinil content (CIPAC 511/TC/M/-, Note 1)

 The cyprodinil content shall be declared (not less than 990 g/kg)

and, when determined, the average measured content shall not be

lower than the declared minimum content.

CYPRODINIL EMULSIFIABLE CONCENTRATE

FAO specification 511/EC (May 2009)

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 (511/2009). It should be applicable to relevant products of these

manufacturers 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 (511/2009) as

PART TWO forms an integral part of this publication.

1. Description

The material shall consist of technical cyprodinil, complying with the

requirements of FAO/WHO specification 511/TC (2009), 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 511/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. Cyprodinil content (CIPAC 511/EC/M/-, Note 1)

The cyprodinil content shall be declared (g/kg or g/l at 20 ± 2°C, Note 2)

and when determined, the average content measured 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 250 g/l up to 500 g/l                             ± 5% of the declared content

3. Physical properties

3.1. Emulsion stability and re-emulsification (MT 36.3)

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 emulsification complete

0.5 h                                       ‘Cream’, maximum: 0.5 ml

2.0 h                                       ‘Cream’, maximum: 0.5 ml

‘Free oil’, maximum: trace

24 h                                        Re-emulsification complete

24.5 h                                     ‘Cream’, maximum: 2 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) (Note 3)

Maximum: 60 ml after 1 minute.

4. Storage stability

4.1. Stability at 0°C (MT 39.3)

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 46.3)

After storage at 54 ± 2°C for 14 days (Note 4), 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).

CYPRODINIL WATER DISPERSIBLE GRANULES

FAO Specification 511/WG (May 2009)

1 Description

The material shall consist of a homogeneous mixture of technical cyprodinil,

complying with the requirements of the FAO/WHO specification 511/TC, together

with carriers and any other necessary formulants. It shall be in the form of

cylindrical granules with approximate diameter of 0.4 – 1.2 mm and length 2 –

8mm, for application after disintegration and dispersion in water. The formulation

shall be dry, free-flowing, essentially non-dusty, and free from visible extraneous

matter and hard lumps.

2 Active ingredient

2.1 Identity tests (CIPAC 511/WG/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 Cyprodinil content (CIPAC 511/WG/M/-, Note 1)

 The cyprodinil content shall be declared (g/kg) and, when determined,

the average content measured shall not differ from that declared by more

than the appropriate tolerance, given in the table of tolerances.

Declared content                        Permitted tolerance

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

above 500 g/kg                            ± 25 g/kg

Note: In each range the upper limit is included

3 Physical properties

3.1 Wettability (MT 53.3)

 The formulation shall be completely wetted in 30 sec.

3.2 Wet sieve test (MT 185)

 Maximum: 0.2% retained on a 75 µm test sieve.

3.3 Degree of dispersion (MT 174)

 Dispersibility: minimum 60% after 1 minute of stirring.

3.4 Suspensibility (MT 168, MT 184)

A minimum of 60% shall be in suspension after 30 min in CIPAC

Standard Water D at 30 ± 2°C

3.5 Persistent foam (MT 47.2) (Note 4)

 Maximum: 30ml after 1 minute.

3.6 Dustiness (MT 171) (Note 5)

 Essentially non-dusty.

3.7 Flowability (MT 172)

 100% of the formulation shall pass through a 5 mm test sieve after 20

drops of the sieve.

3.8 Attrition resistance (MT 178.2)

 Minimum: 85% attrition resistance.

4 Storage stability

4.1 Stability at elevated temperature (MT 46.3)

 After storage at 54 ± 2°C for 14 days (Note 6), the determined

average active ingredient content must not be lower that 95% relative

to the determined average content found before storage (Note 6) and

the formulation shall continue to comply with the clauses for:

- wet sieve test (3.2),

- degree of dispersion (3.3),

- suspensibility (3.4),

- dustiness (3.6),

- attrition resistance (3.8).