EN ISO 11612 explained: heat and flame protective clothing
EN ISO 11612 explained: heat and flame protective clothing
EN ISO 11612 sets minimum performance for clothing that protects against heat and flame, from brief flame contact to molten metal splash.
Updated
Quick answer
EN ISO 11612 garments carry a code string such as A1 B1 C1 F1. A1 or A2 shows limited flame spread; B is convective heat (1–3); C radiant heat (1–4); D molten aluminium (1–3); E molten iron (1–3); F contact heat (1–3). EN ISO 11612:2015 is not currently cited in the GB or EU lists, so notified bodies assess these garments directly against the PPE Regulation's essential requirements.
At a glance
| Detail | |
|---|---|
| What it covers | Flame-resistant (FR) workwear for heat and flame |
| Current edition | EN ISO 11612:2015 |
| List status | Not cited in the GB designated or EU harmonised lists as of 30 October 2026 |
| On the label | Flame pictogram with "EN ISO 11612" and its code string |
What each letter means
| Code | Protection | Levels |
|---|---|---|
| A1 / A2 | Limited flame spread | Pass |
| B | Convective heat | 1 to 3 |
| C | Radiant heat | 1 to 4 |
| D | Molten aluminium splash | 1 to 3 |
| E | Molten iron splash | 1 to 3 |
| F | Contact heat | 1 to 3 |
Shop EN ISO 11612
EN ISO 11612 questions
Can I add a logo to FR clothing?
Only with materials that keep the garment's certification. Ask us first, as the wrong transfer or thread can affect flame performance.
What is multinorm clothing?
Garments certified to several standards at once, for example EN ISO 11612, EN 1149-5 and IEC 61482-2.
Need this for a team?
We can supply and brand PPE for your whole team, delivered across the UK and Ireland.
Official sources
Standards and site rules change. Always check the current edition, the product's declaration of conformity and your own risk assessment.
- GOV.UK: Designated standards for PPE (Great Britain): https://www.gov.uk/government/publications/designated-standards-ppe
- European Commission: Harmonised standards for PPE (EU, applies in Ireland and Northern Ireland): https://single-market-economy.ec.europa.eu/single-market/goods/european-standards/harmonised-standards/personal-protective-equipment_en
- HSE: PPE at work regulations: https://www.hse.gov.uk/ppe/ppe-regulations-2022.htm
- HSA: Personal protective equipment (Ireland): https://www.hsa.ie/eng/topics/personal_protective_equipment_-_ppe/
- BSI: the UK National Standards Body (publishes BS EN standards): https://www.bsigroup.com/en-GB/about-bsi/uk-national-standards-body/
- NSAI: National Standards Authority of Ireland (publishes I.S. EN standards): https://www.nsai.ie/