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Understanding EN 455: an introduction to the medical glove standard

Five parts, five different questions. What each part of the European medical glove standard governs, what "EN 455 compliant" actually tells you, and what to require in a tender.

Niels Kristian BitschJune 12, 20235 min read
Understanding EN 455: an introduction to the medical glove standard – Eastwest Medico

EN 455 is the European standard for single-use medical gloves. If you are writing a tender, comparing offers, or checking whether a supplier's paperwork actually says what it appears to say, this is the standard the answer sits in.

It applies to surgical and examination gloves in latex, nitrile, vinyl and other materials, and it exists for one reason: to make sure a glove is an effective barrier against cross-contamination, and stays one for as long as its label claims.

Five parts, five different questions

The standard now runs to five parts. Each answers a distinct question, and a compliant glove needs all of them:

Part
Question it answers
Does the glove leak?
Is it the right size and strong enough?
Is it biologically and chemically safe to wear?
Is the claimed shelf life real?
What chemicals can come out of it against the skin?

A supplier who says "EN 455 compliant" without naming parts and editions has told you very little. The useful question is which parts they hold test reports for, and from which laboratory.

Editions move, and three are commonly cited wrongly. EN 455-1 has been amended twice, so the current reference is EN 455-1:2020+A2:2024 – not plain EN 455-1:2020, and not the intermediate A1:2022. EN 455-2 was revised in 2024; EN 455-2:2015 is withdrawn. EN 455-3 was revised in 2023; the 2015 edition was withdrawn in November 2025. EN 455-1:2020+A2:2024 and EN 455-2:2024 are both harmonised under the MDR by Commission Implementing Decision (EU) 2025/681, and the presumption of conformity attaches to those editions only.

Part 1: freedom from holes

Holes let microorganisms and body fluids through in both directions, so this is the first thing tested. Gloves are filled with water by a defined method and inspected for leaks.

Compliance is expressed as an Acceptable Quality Limit: 1.5 for examination gloves, 0.65 for surgical gloves.

One point is worth stating plainly, because it is routinely misread: AQL 1.5 does not mean 1.5 % of the gloves you receive will leak. It is a batch-acceptance rule. Lots are sampled to a statistical plan, and a lot whose defect rate exceeds the limit is rejected. Our guide to AQL works through what the number does and does not promise.

Part 2: dimensions and strength

Part 2 covers the physical properties that decide whether a glove survives use: length, width and the force needed to break the material.

Sizing consistency matters more than it sounds. A ward that standardises on "medium" needs medium to mean the same thing from one delivery to the next. Examination gloves run XS to XL with a minimum median length of 240 mm and a defined palm width per size; surgical gloves are specified by numeric size.

Minimum median force at break is set per glove type and material: 9.0 N for surgical gloves, 6.0 N for examination gloves in latex or nitrile, and 3.6 N for thermoplastic gloves such as vinyl. Critically, strength is tested both when new and after challenge testing – seven days at 70 °C – so the requirement holds across the glove's stated life rather than only on the day it was made.

Part 3: biological and chemical safety

Part 3 covers what the glove might do to the person wearing it, or leave behind on a patient. It was revised in 2023, and the revision matters commercially: it strengthened what a manufacturer must declare.

Three areas:

Latex proteins – water-soluble protein in natural rubber latex is the trigger for Type I allergy, so its level is measured and limited.
Chemical residues – accelerators, antioxidants, lubricants and biocides left over from manufacturing, evaluated under ISO 10993. Accelerators are the usual cause of Type IV contact dermatitis; if that is a concern in your setting, accelerator-free gloves remove it at source.
Powder – a glove must carry 2 mg or less per glove to be labelled powder-free.

Part 4: shelf life

Part 4 sets how a shelf-life claim is established, by accelerated ageing, real-time testing, or both. The maximum that may be claimed is five years from manufacture, and a claim beyond three years cannot rest on accelerated testing alone.

Shelf life is also a storage promise, not just a date: the figure holds only under the labelled conditions. Our storage guide covers what heat, humidity, light and ozone do to it.

Part 5: extractable chemical residues

The newest part, published in 2025, addresses reactions to residual chemicals in gloves. It is the part most likely to change what you can ask for, so it is worth reading on its own: understanding EN 455-5:2025.

What to require in a tender

Compliance with EN 455-1:2020+A2:2024, EN 455-2:2024, EN 455-3:2023 and EN 455-4:2009, each with its edition stated.
Test reports from an accredited laboratory, identifying product and lot.
The applicable AQL stated explicitly: 1.5 examination, 0.65 surgical.
Powder residue and, for latex, protein content, as declared figures.
The shelf-life claim, and whether it rests on accelerated or real-time data.

Our own examination and surgical gloves are supplied with this documentation as standard, verified by SGS or TÜV before shipment.

Key takeaways

EN 455 has five parts; "EN 455 compliant" is meaningless without saying which.
AQL is a batch-acceptance limit, not a permitted leak rate.
Strength and dimensions are tested after ageing, not only when new.
Powder-free means 2 mg or less per glove, and it is a measured figure.
Five years is the maximum claimable shelf life, and only under labelled storage conditions.
Niels Kristian Bitsch, managing director of Eastwest Medico ApS
Niels Kristian BitschManaging director, Eastwest Medico ApS

Seventeen years sourcing and supplying medical gloves and PPE to governments, UN agencies, NGOs and healthcare systems. Writes on glove standards, quality management and responsible sourcing for institutional buyers, working from the source standards rather than secondary summaries.

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