Section 1 - Agricultural and Veterinary Chemicals Code (Chemical Products) Standard 2025 - Agricultural and Veterinary Chemicals Code (Chemical Products) Standard 2025

1Agricultural and Veterinary Chemicals Code (Chemical Products) Standard 2025

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Commonwealth Coat of Arms of Australia

Agricultural and Veterinary Chemicals Code (Chemical Products) Standard 2025

I, Sheila Logan, Executive Director, Risk Assessment Capability, Australian Pesticides and Veterinary Medicines Authority, make the following Standard.

Dated 6 August 2025

Sheila Logan Executive Director, Risk Assessment Capability

Delegate

Australian Pesticides and Veterinary Medicines Authority

Contents

1 Name

2 Commencement

3 Authority

4 Definitions

5 Standards for chemical products................................2

1 Name

This instrument is the Agricultural and Veterinary Chemicals Code (Chemical Products) Standard 2025.

2 Commencement

This instrument commences on the day after it is registered.

3 Authority

This instrument is made under section 6E of the Schedule to the Agricultural and Veterinary Chemicals Code Act 1994.

4 Definitions

Note: A number of expressions used in this instrument are defined in section 3 of the Code including the following:

active constituent
agricultural chemical product
approved label
chemical product
substance
veterinary chemical product

In this instrument:

declared content means the concentration of an active constituent in a chemical product as specified on the approved label for that product.

Code means the Agricultural and Veterinary Chemicals Code set out in the Schedule to the Agricultural and Veterinary Chemicals Code Act 1994.

formulation type has the same meaning as in the Agricultural and Veterinary Chemicals Code Regulations 1995.

impurity means a substance other than the active constituent that is present in a chemical product (including substances that are process byproducts or degradation products).

specified active content means the permitted range from the declared content within which the concentration of an active constituent must fall when measured using a validated analytical method.

Column 1<br>Active constituent(s)	Column 2<br>Type	Column 3<br>Formulation type	Column 4<br>Specified active content	Column 5<br>Specified Impurity Levels
Malathion	Agricultural chemical product or veterinary chemical product	Emulsifiable concentrate (EC)	Declared malathion content up to and including 25 g/L: ±15%<br>Declared malathion content above 25 g/L up to and including 100 g/L: ±10%<br>Declared malathion content above 100 g/L up to and including 250 g/L: ±6%<br>Declared malathion content above 250 g/L up to and including 500 g/L: ±5%<br>Declared malathion content above 500 g/L: ±25 g/L	Malaoxon: maximum 0.1% of the measured malathion content <br>Isomalathion: maximum 0.8% of the measured malathion content <br>O,O,S-trimethylphosphorothioate (MeOOSPO): maximum 0.5% of the measured malathion content
Malathion	Agricultural chemical product or veterinary chemical product	Emulsions, oil‑in‑water (EW)	Declared malathion content up to and including 25 g/L: ±15%<br>Declared malathion content above 25 g/L up to and including 100 g/L: ±10%<br>Declared malathion content above 100 g/L up to and including 250 g/L: ±6%<br>Declared malathion content above 250 g/L up to and including 500 g/L: ±5%<br>Declared malathion content above 500 g/L: ±25 g/L	Malaoxon: maximum 0.8% of the measured malathion content <br>Isomalathion: maximum 0.6% of the measured malathion content <br>O,O,S-trimethylphosphorothioate (MeOOSPO): maximum 0.5% of the measured malathion content
Malathion	Agricultural chemical product	Ultra‑low volume liquid (UL)	<br>Declared malathion content 500 g/L and above: ±25 g/L<br>	Malaoxon: maximum 0.1% of the measured malathion content <br>Isomalathion: maximum 0.4% of the measured malathion content <br>O,O,S-trimethylphosphorothioate (MeOOSPO): maximum 0.5% of the measured malathion content <br>O,S,S-trimethylphosphorodithioate (MeOSSPO): maximum 0.01% of the measured malathion content
Malathion	Agricultural chemical product or veterinary chemical product	Dustable powder (DP)	Declared malathion content up to and including 25 g/kg: ±25%<br>Declared malathion content above 25 g/kg up to and including 100 g/kg: within -10% and +25%	Malaoxon: maximum 0.1% of the measured malathion content <br>Isomalathion: maximum 2.5% of the measured malathion content <br>O,O,S-trimethylphosphorothioate (MeOOSPO): maximum 0.5% of the measured malathion content

Column 1 Active constituent(s)

Column 2 Type

Column 3 Formulation type

Column 4 Specified active content

Column 5 Specified Impurity Levels

Malathion

Agricultural chemical product or veterinary chemical product

Emulsifiable concentrate (EC)

Declared malathion content up to and including 25 g/L: ±15% Declared malathion content above 25 g/L up to and including 100 g/L: ±10% Declared malathion content above 100 g/L up to and including 250 g/L: ±6% Declared malathion content above 250 g/L up to and including 500 g/L: ±5% Declared malathion content above 500 g/L: ±25 g/L

Malaoxon: maximum 0.1% of the measured malathion content Isomalathion: maximum 0.8% of the measured malathion content O,O,S-trimethylphosphorothioate (MeOOSPO): maximum 0.5% of the measured malathion content

Malathion

Agricultural chemical product or veterinary chemical product

Emulsions, oil‑in‑water (EW)

Malaoxon: maximum 0.8% of the measured malathion content Isomalathion: maximum 0.6% of the measured malathion content O,O,S-trimethylphosphorothioate (MeOOSPO): maximum 0.5% of the measured malathion content

Malathion

Agricultural chemical product

Ultra‑low volume liquid (UL)

Declared malathion content 500 g/L and above: ±25 g/L

Malaoxon: maximum 0.1% of the measured malathion content Isomalathion: maximum 0.4% of the measured malathion content O,O,S-trimethylphosphorothioate (MeOOSPO): maximum 0.5% of the measured malathion content O,S,S-trimethylphosphorodithioate (MeOSSPO): maximum 0.01% of the measured malathion content

Malathion

Agricultural chemical product or veterinary chemical product

Dustable powder (DP)

Declared malathion content up to and including 25 g/kg: ±25% Declared malathion content above 25 g/kg up to and including 100 g/kg: within -10% and +25%

Malaoxon: maximum 0.1% of the measured malathion content Isomalathion: maximum 2.5% of the measured malathion content O,O,S-trimethylphosphorothioate (MeOOSPO): maximum 0.5% of the measured malathion content