Standard explainer · EN ISO 15797
Industrial laundries are not big washing machines — they're 75-degree tunnel washers and cabinet dryers that would destroy a high-street garment in a fortnight. EN ISO 15797 is the standard that proves a garment survives that process, and it's the small print behind every rental contract and most FR wash-life claims.
The standard
EN ISO 15797 defines reference industrial washing and drying procedures — high-temperature tunnel washes with industrial chemistry, followed by tumble or tunnel-finisher drying — and garments certified against it have survived those cycles with their dimensions, appearance and performance intact. For protective kit that last word is the whole point: an FR garment's wash-life claims and a hi-vis garment's colour endurance are stated against defined wash procedures, and 15797 is the industrial one. (The domestic equivalent, for home-washing claims, is ISO 6330 — the care label's world.)
Why buyers meet it: rental and laundry-service contracts effectively require 15797-capable garments — anything less falls apart in the tunnel and the contract. Direct buyers meet it as a durability signal: a garment built to survive industrial laundering is over-built for home washing in the best way, which is why our fabric guide treats the marking as a quality shorthand even for teams that will never use a tunnel washer.
The practical read
| Buyer | What 15797 means to you |
|---|---|
| Rental / laundry-service users | The garment is contract-viable — it survives the process your service uses |
| FR fleet managers | Wash-life counting is meaningful — cycles are defined, so the count is too |
| Hygiene sectors | Food and clinical laundering programmes lean on industrially-rated kit |
| Everyone else | A durability proxy: tunnel-proof construction shrugs off domestic machines |
Questions
The garment is certified (typically to EN ISO 15797) to survive industrial laundry processes — high-temperature tunnel washing and industrial drying — without losing its fit, appearance or protective performance. It's the durability grade rental services and laundry contracts require.
The care label reflects domestic washing (tested under ISO 6330); EN ISO 15797 covers industrial processes, which are hotter, more chemical and more mechanical. A garment can be home-washable but not industrial-grade — putting it through a tunnel washer anyway is how rental stock gets wrecked.
It ages any garment faster than home washing — that's why the standard exists. Garments built to 15797 tolerate it by design; garments that aren't shrink, fade, delaminate and lose print quickly. For protective kit, the laundering method must match what the garment's performance claims were tested against.
Everything decoded here is stocked as certified garments and PPE, embroidered where it makes sense.