On 8-11 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. Hexanedioic acid, polymer with 2-(chloromethyl)oxirane, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 4,4′-(1-methylethylidene)bis[phenol] and oxirane, 2-propenoate, polymer with 1,6-diisocyanatohexane, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediamine, 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane (average MW 685000 g/mol)

   WGK 1 (slightly hazardous to water)

2. Sodium 3-(4-methyl-2-nitrophenoxy)propanesulphonate

   WGK 1 (slightly hazardous to water)

3. L-Aspartic acid, N,N'-1,2-ethanediylbis-, sodium salt (1:3)

   WGK 1 (slightly hazardous to water)