On 1-7 March 2024, the German Ordinance on Facilities Handling Substances That Are Hazardous to Water (AwSV) List of published water hazard class (WGK) classifications was updated. The following substances were newly assigned a WGK:

1. Cyclohexane-1,2-diaminetetraacetic acid including sodium, potassium and ammonium salts

   WGK 2 (obviously hazardous to water)

2. Aspartic acid, N,N'-(2-methyl-1,5-pentanediyl)bis-,tetraethyl ester

   WGK 1 (slightly hazardous to water)

3. Tetraethyl N,N'-(methylenedicyclohexane-4,1-diyl)bis-DL-aspartate

   WGK 2 (obviously hazardous to water)

4. Polymer of Acrylic acid, Acrylic acid n-butyl ester und Acrylic acid isooctyl ester (average molecular weight 472000 g/mol)

   WGK 2 (obviously hazardous to water)

5. Hydrocarbons, C6-20, polymers, hydrogenated (average molecular weight 1250 g/mol)

   WGK 2 (obviously hazardous to water)

6. L-Lysine, homopolymer (average MW 5000 g/mol)

   WGK 1 (slightly hazardous to water)

7. 4,4'-thiodiethylene hydrogen -2-octadecenylsuccinate

   WGK 2 (obviously hazardous to water)

8. C16-18- and C18-unsaturated Alcohols, ethoxylated, carboxymethylated, EO 10,5

   WGK 1 (slightly hazardous to water)

9. Polyurethanes, manufactured as an aqueous dispersion

   WGK 1 (slightly hazardous to water)

10. Molybdenum, N,N-bis(C11-14-branched and linear alkyl)carbamodithioate oxo thioxo complexes

    WGK 1 (slightly hazardous to water)

11. Reaction mass of 2,6-dimethylheptan-4-one and 4,6-dimethylheptan-2-one

    WGK 1 (slightly hazardous to water)