[GB] Proposed Mandatory Harmonised Classifications of Chemicals
In March 2025, GB proposed to the World Trade Organisation (WTO), mandatory classification and labelling of 30 hazardous chemical substances.
They are as follows:
- perboric acid, sodium salt [1];
- perboric acid, sodium salt, monohydrate [2]; perboric acid (HBO(O2)), sodium salt,
- monohydrate; sodium peroxoborate [3];
- sodium perborate [4 H272, H360FD, H331, H302, H335, H318
- Silver massive: [particle diameter ≥ 1 mm] 2 H361f, STOT RE 2 H373 (nervous system)
- Silver powder: [particle diameter > 100 nm < 1 mm] Repr.2 H361f, STOT RE 2 H373 (nervous system), H410
- Silver nano: [particle diameter > 1 nm ≤ 100 nm] Repr.2 H361f, STOT RE 2 H373 (nervous system), H410
- 1-hydroxy-4-(p-toluidino)anthraquinone (Solvent Violet 13) H317 Skin sens. 1B
- 1,2-dihydroxy-9,10-dihydroanthracene-9,10-dione (Pigment Red 83) H317 Skin sens. 1B
- 2-ethylhexanoic acid, monoester with propane-1,2-diol
- N-1-naphthylaniline; N-phenylnaphthalen-1-amine
- α,α’-propylenedinitrilodi-o-cresol
- ozone
- bixlozone (ISO); 2-(2,4-dichlorobenzyl)-4,4-dimethyl-1,2-oxazolidin-3-one;
- biphenyl-2-ol; 2-phenylphenol; 2-hydroxybiphenyl
- fenpropidin (ISO); (R,S)-1-[3-(4-tert-butylphenyl)-2- methylpropyl]piperidine
- tert-butyl 2-ethylperoxyhexanoate (TBPEH)
- pyraclostrobin
- di and trimethyl cyclohex-3-ene-1-carbaldehydes
- 1,4-dichloro-2-nitrobenzene
- reaction mass of 1,3-dioxan-5-ol and 1,3-dioxolan-4-ylmethanol (glycerol formal)
- n-hexane
- copper [specific surface area > 0.67 mm2 /mg]
- dibenzoyl peroxide; benzoyl peroxide
- N,N’-methylenediacrylamide
- sodium 3-(allyloxy)-2-hydroxypropanesulphonate
- methyl-1H-benzotriazole
- 1H-benzotriazole
- sodium peroxometaborate
- tetrairon tris(pyrophosphate); ferric pyrophosphate
- 2-phenylpropene
- tetraphosphorus trisulphide; phosphorus sesquisulphide
- pethoxamid (ISO); 2-chloro-N-(2-ethoxyethyl)-N-(2- methyl-1-phenylprop-1-enyl)acetamide
- dinitrogen oxide
Prepare for Regulatory Impact
The UK’s proposal to the WTO marks a significant step toward mandatory classification and labelling of 30 hazardous substances. Businesses handling these chemicals must begin assessing their portfolios and preparing for potential regulatory changes.
🔍 Review your substance inventory
📄 Evaluate classification and labelling obligations
⚠️ Identify products at risk of non-compliance
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