Definition and further description of Annex III to WFD

Annex III to the WFD defines HP 3 ‘Flammable’ over 6 indents: — ‘flammable liquid waste : — flammable pyrophoric liquid and solid waste : — flammable solid waste : — flammable gaseous waste : — water reactive waste : — other flammable waste : The WFD further explains that: ‘When a waste contains one or more substances classified by one of the following hazard class and category codes and hazard statement codes shown in Table 3 [see Table 10 of this document], the waste shall be assessed, where appropriate and proportionate, according to test methods. If the presence of a substance indicates that the waste is flammable, it shall be classified as hazardous by HP 3’ A waste containing substances that are classified with the hazard class, category and statement codes in Table 10 can be tested to show whether it displays that hazardous property or not. Alternatively a waste containing those substances, other than in trace amounts, can simply be assumed to be hazardous by HP 3. Hazard Class and Category Code(s) Hazard statement Code(s) Description Flam. Gas 1 H220 Extremely flammable gas Flam. Gas 2 H221 Flammable gas Aerosol 1 H222 Extremely flammable aerosol Aerosol 2 H223 Flammable aerosol Flam. Liq. 1 H224 Extremely flammable liquid and vapour Flam. Liq.2 H225 Highly flammable liquid and vapour Flam. Liq. 3 H226 Flammable liquid and vapour Flam. Sol. 1 Flam. Sol. 2 H228 Flammable solid Self-react. CD Self-react. EF Org. Perox. CD Org. Perox. EF H242 Heating may cause a fire Pyr. Liq. 1 Pyr. Sol. 1 H250 Catches fire spontaneously if exposed to air Self-heat.1 H251 Self-heating: may catch fire Self-heat. 2 H252 Self-heating in large quantities; may catch fire Water-react. 1 H260 In contact with water releases flammable gases which may ignite spontaneously Water-react. 2 Water-react. 3 H261 In contact with water releases flammable gases Where a waste contains substances assigned H220 or H221 it is possible to calculate whether or not the waste displays HP 3 (fourth indent). The calculation method is provided by ISO 10156 and should be applied in accordance with the ECHA CLP Guidance. Where a waste contains substance assigned H260 or H261, i.e. a substance which is capable of releasing a highly flammable gas at a rate in excess of 1 litre of gas per kilogram of substance per hour when water is added, it is possible to calculate the minimum concentration of the substance in the waste that would make it hazardous by HP 3 (fifth indent). Below this concentration the waste is not considered hazardous pursuant to HP 3 (fifth indent). At or above the concentration the waste is considered to be HP 3, or tested. Examples of substances and calculation are provided by the UK Guidance and are presented in the following section. A brief example for an assessment of organic peroxides according to HP 3 based on assessing HP 1 can be found in Section 1.4.7. Figure 9 sets out the determination process for HP 3 (4).

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Source: EUR-Lex (Cellar) · retrieved 2026-09-07