EN ISO 9185:2025
(Main)Protective clothing - Assessment of resistance of materials to molten metal splash (ISO 9185:2025)
Protective clothing - Assessment of resistance of materials to molten metal splash (ISO 9185:2025)
This document specifies a method for assessing the heat penetration resistance of materials intended for use in clothing to protect against large splashes of molten metal. It provides specific procedures for assessing the effects of splashes of molten aluminium, molten cryolite, molten copper, molten iron and molten mild steel.
The principle of the test method is applicable to a wider range of hot molten materials than those for which specific procedures are set out, provided that appropriate measures are applied to protect the test operator. It is important to note that good resistance of a material to a pure molten metal does not guarantee a good performance against any slag that can be present in a manufacturing process.
Schutzkleidung - Beurteilung des Materialwiderstandes gegen flüssige Metallspritzer (ISO 9185:2025)
Dieses Dokument legt ein Verfahren zur Beurteilung des Wärmedurchgangswiderstandes von Materialien fest, die zur Verwendung in Bekleidung vorgesehen sind, um gegen große Spritzer flüssigen Metalls zu schützen. Es werden Verfahren festgelegt, zur Bewertung des Effekts von Spritzern von geschmolzenem Aluminium, geschmolzenem Kryolith, geschmolzenem Kupfer, geschmolzenem Eisen und geschmolzenem unlegiertem Stahl (Baustahl).
Das Prinzip dieses Prüfverfahrens ist darüber hinaus anwendbar auf einen weiteren Bereich von erhitzten geschmolzenen Materialien als die, für die spezifische Prüfverfahren angegeben sind, vorausgesetzt, angemessene Sicherheitsmaßnahmen zum Schutz des Prüfpersonals werden angewendet. Es ist wichtig zu erwähnen, dass ein hoher Widerstand des Materials gegenüber Spritzern von reinem geschmolzenem Metall keine Garantie für eine gute Schutzleistung gegen Schlacke ist, die in einem Herstellungsprozess auftreten kann.
Habillement de protection - Évaluation de la résistance des matériaux aux projections de métal fondu (ISO 9185:2025)
Le présent document spécifie une méthode d’évaluation de la résistance au passage de la chaleur caractérisant les matériaux destinés à être utilisés dans les vêtements pour assurer une protection contre les projections importantes de métal fondu. Il fournit des modes opératoires spécifiques pour évaluer les effets des projections de métaux fondus tels que l’aluminium, la cryolite, le cuivre, la fonte et l’acier doux.
Le principe de la méthode d’essai est applicable à une plus large gamme de matériaux haute température fondus que ceux pour lesquels des modes opératoires spécifiques ont été établis, sous réserve que soient mises en œuvre des mesures appropriées pour protéger l’opérateur d’essai. Il est important de noter que la bonne résistance d’un matériau à un métal pur fondu ne garantit pas sa bonne performance vis-à-vis du laitier pouvant être présent lors du processus de fabrication.
Varovalna obleka - Ocenitev odpornosti materialov proti obrizgu staljene kovine (ISO 9185:2025)
General Information
- Status
- Published
- Publication Date
- 30-Sep-2025
- Technical Committee
- CEN/TC 162 - Protective clothing including hand and arm protection and lifejackets
- Drafting Committee
- CEN/TC 162/WG 2 - Resistance to heat and fire of protective clothing
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 01-Oct-2025
- Completion Date
- 01-Oct-2025
Relations
- Effective Date
- 19-Jan-2023
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN ISO 9185:2025 - Protective clothing: Assessment of resistance of materials to molten metal splash specifies a laboratory method to evaluate the heat-penetration resistance of materials used in protective garments against large splashes of molten metal. The standard provides specific test procedures for molten aluminium, molten cryolite, molten copper, molten iron and molten mild steel, and its principle is extensible to other molten materials with appropriate safety controls.
Key topics and technical requirements
- Test principle: Controlled pours of molten metal onto a specimen fixed on a pin frame; damage is assessed using an embossed PVC sensor film placed directly behind the specimen. The minimum mass of metal that causes damage defines the molten metal splash index.
- Specified materials: Procedures for molten aluminium, cryolite, copper, iron and mild steel; Annex B gives test conditions for these and guidance for other materials.
- Apparatus & conditioning: Requirements include a crucible and detachable holder, furnace capable of at least 100 °C above pouring temperature, temperature probes (thermocouple/optical) up to 1 650 °C, a rotating pouring device and sand tray, plus a metal support under the specimen for improved reproducibility.
- PVC sensor film calibration: Routine verification of the PVC sensor film (mass per unit area and thermal response) per Annex C - calibration is done within 30 days of testing to account for plasticizer loss and batch variability.
- Procedures & decision rules: Iterative and performance level–based testing procedures are defined (including void tests and reporting requirements). Annex A specifies objective criteria for assessing “damage” to the sensor film.
- Operator safety: The standard emphasizes protective measures and apparatus design to protect test operators handling high-temperature molten materials.
Applications and users
EN ISO 9185:2025 is intended for:
- PPE manufacturers designing and certifying garments (protective clothing, aprons, sleeves) for molten-metal environments.
- Independent test laboratories performing molten metal splash testing and performance classification.
- Safety engineers and compliance officers in foundries, steel and aluminium plants, metal‑casting, and smelting operations evaluating material selection and PPE performance.
- Regulators and procurement teams specifying protective clothing requirements for high‑temperature processes.
Practical benefits include standardized assessment of material resistance to molten metal splash, improved reproducibility using calibrated PVC sensor film and metal support, and clearer guidance for matching protective clothing to workplace hazards (foundry safety, welding, metal casting).
Related standards
- ISO 683-1 (referenced normative material standard)
- ISO 11610 (source for molten metal splash index definition)
- Relevant PPE and garment performance standards used in purchasing and certification of protective clothing
Keywords: EN ISO 9185:2025, molten metal splash testing, protective clothing, PVC sensor film, heat penetration resistance, PPE testing, foundry safety.
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Frequently Asked Questions
EN ISO 9185:2025 is a standard published by the European Committee for Standardization (CEN). Its full title is "Protective clothing - Assessment of resistance of materials to molten metal splash (ISO 9185:2025)". This standard covers: This document specifies a method for assessing the heat penetration resistance of materials intended for use in clothing to protect against large splashes of molten metal. It provides specific procedures for assessing the effects of splashes of molten aluminium, molten cryolite, molten copper, molten iron and molten mild steel. The principle of the test method is applicable to a wider range of hot molten materials than those for which specific procedures are set out, provided that appropriate measures are applied to protect the test operator. It is important to note that good resistance of a material to a pure molten metal does not guarantee a good performance against any slag that can be present in a manufacturing process.
This document specifies a method for assessing the heat penetration resistance of materials intended for use in clothing to protect against large splashes of molten metal. It provides specific procedures for assessing the effects of splashes of molten aluminium, molten cryolite, molten copper, molten iron and molten mild steel. The principle of the test method is applicable to a wider range of hot molten materials than those for which specific procedures are set out, provided that appropriate measures are applied to protect the test operator. It is important to note that good resistance of a material to a pure molten metal does not guarantee a good performance against any slag that can be present in a manufacturing process.
EN ISO 9185:2025 is classified under the following ICS (International Classification for Standards) categories: 13.340.10 - Protective clothing. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 9185:2025 has the following relationships with other standards: It is inter standard links to EN ISO 9185:2007, EN ISO/ASTM 52904:2020, EN 407:2004, EN ISO 3691-4:2023. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN ISO 9185:2025 is associated with the following European legislation: EU Directives/Regulations: 2016/425; Standardization Mandates: M/571. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN ISO 9185:2025 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2026
Nadomešča:
SIST EN ISO 9185:2007
Varovalna obleka - Ocenitev odpornosti materialov proti obrizgu staljene kovine
(ISO 9185:2025)
Protective clothing - Assessment of resistance of materials to molten metal splash (ISO
9185:2025)
Schutzkleidung - Beurteilung des Materialwiderstandes gegen flüssige Metallspritzer
(ISO 9185:2025)
Habillement de protection - Évaluation de la résistance des matériaux aux projections de
métal fondu (ISO 9185:2025)
Ta slovenski standard je istoveten z: EN ISO 9185:2025
ICS:
13.340.10 Varovalna obleka Protective clothing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 9185
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2025
EUROPÄISCHE NORM
ICS 13.340.10 Supersedes EN ISO 9185:2007
English Version
Protective clothing - Assessment of resistance of materials
to molten metal splash (ISO 9185:2025)
Habillement de protection - Évaluation de la résistance Schutzkleidung - Beurteilung des
des matériaux aux projections de métal fondu (ISO Materialwiderstandes gegen flüssige Metallspritzer
9185:2025) (ISO 9185:2025)
This European Standard was approved by CEN on 27 September 2025.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9185:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 9185:2025) has been prepared by Technical Committee ISO/TC 94 "Personal
safety -- Personal protective equipment " in collaboration with Technical Committee CEN/TC 162
“Protective clothing including hand and arm protection and lifejackets” the secretariat of which is held
by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2026, and conflicting national standards shall be
withdrawn at the latest by April 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 9185:2007.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 9185:2025 has been approved by CEN as EN ISO 9185:2025 without any modification.
International
Standard
ISO 9185
Third edition
Protective clothing — Assessment
2025-09
of resistance of materials to molten
metal splash
Habillement de protection — Évaluation de la résistance aux
projections de métal fondu
Reference number
ISO 9185:2025(en) © ISO 2025
ISO 9185:2025(en)
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 9185:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus and materials . 2
6 Conditioning . 6
7 Preparation of test specimens . 6
8 Operator safety . 7
9 Procedure . 7
9.1 Setting up the apparatus .7
9.2 Preparation of molten metal or cryolite .7
9.3 Attachment of test material to specimen holder .7
9.4 Pouring .7
9.4.1 Pouring of molten metal .7
9.4.2 Pouring of molten cryolite .7
9.4.3 Additional procedures .8
9.5 Examination .8
9.6 Determination of mass of metal poured .8
10 Testing procedures . 8
10.1 Iterative testing procedure .8
10.2 Performance level-based testing procedure .8
11 Void tests . 9
12 Test report . 9
Annex A (normative) Test conditions for certain metals and for cryolite .10
Annex B (normative) Method of test for assessment of thermal characteristics of PVC sensor
film .11
Annex C (informative) Assessment of ‘damage’ to the PVC sensor film .12
Bibliography .15
iii
ISO 9185:2025(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 94, Personal safety — Personal protective
equipment, Subcommittee SC 13, Protective clothing, in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 162, Protective clothing including hand and arm
protection and lifejackets, in accordance with the Agreement on technical cooperation between ISO and CEN
(Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 9185:2007), which has been technically
revised.
The main changes are as follows:
— reference to the new PVC sensor film (footnote 1 in 5.2);
— addition of possible use of a metal support (Figure 3, 5.10, Clause 12 and Annex A);
— addition of a performance level-based testing procedure (10.2);
— addition of Annex C, adjustments and updates in Annexes A and B.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
ISO 9185:2025(en)
Introduction
This document introduces changes intended to improve reproducibility when using a new batch of PVC
sensor film.
These changes are, principally:
— more precise definitions of damage to the PVC sensor film;
— better damage assessment criteria to determine results;
— introduction of a metal support located beneath the test specimen, for tests using all metals except
aluminium and cryolite.
A new batch of PVC sensor film was produced and is shown by thorough inter-laboratory trials to behave
comparably to the previous PVC sensor film. The new batch of PVC sensor film is now available by a new
world-wide distributor, see footnote 1 in 5.2.
v
International Standard ISO 9185:2025(en)
Protective clothing — Assessment of resistance of materials
to molten metal splash
1 Scope
This document specifies a method for assessing the heat penetration resistance of materials intended for use
in clothing to protect against large splashes of molten metal. It provides specific procedures for assessing the
effects of splashes of molten aluminium, molten cryolite, molten copper, molten iron and molten mild steel.
The principle of the test method is applicable to a wider range of hot molten materials than those for which
specific procedures are set out, provided that appropriate measures are applied to protect the test operator.
It is important to note that good resistance of a material to a pure molten metal does not guarantee a good
performance against any slag that can be present in a manufacturing process.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 683-1, Heat-treatable steels, alloy steels and free-cutting steels — Part 1: Non-alloy steels for quenching and
tempering·
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
damage
any smoothing or modification to the embossing on the front and/or back of the PVC sensor film, extending
in total for at least 5 mm across its width, or pinholing with a diameter of at least 1 mm
Note 1 to entry: Where the visual change in appearance is in discrete spots, damage occurs when the summation of
the width of each spot exceeds 5 mm across any horizontal section. For cryolite, experience indicates that damage can
be defined as less than 5 mm in width, but greater than 10 mm in length.
3.2
molten metal splash index
figure equal to the minimum mass of molten metal poured which just causes damage (3.1) to the PVC sensor film
[SOURCE: ISO 11610:2023, 6.5.40]
4 Principle
Materials are tested by pouring quantities of molten metal onto the test specimen supported at an angle to
the horizontal on a specimen holder. Damage is assessed by placing an embossed thermoplastic PVC sensor
film directly behind, and in contact with, the test specimen and noting changes to the film after pouring.
ISO 9185:2025(en)
Any adherence of the metal to the test specimen surface is also noted. Depending on the result, the test is
repeated, using a greater or smaller mass of metal, until the minimum quantity to cause damage to the film
is observed.
5 Apparatus and materials
5.1 Metals and cryolite, conforming with the specifications set out in Annex A. Other metals or substrates
appropriate to the end use.
NOTE It is advisable that coarse filings or small pieces cut from solid bar or sheet be used, because fine filings
have proved difficult to melt. A range of pouring temperatures used in industry for different metals and for cryolite is
given in Annex A.
1) 2
5.2 PVC sensor film , comprising an embossed PVC sheet, of mass per unit area (300 ± 30) g/m , which
when tested as described in Annex B shows no smoothing or modification of the embossing of the central
area at the lower temperature but which shows smoothing or modification of the central area at the higher
temperature. The procedure set out in Annex B shall be undertaken no more than 6 months before any one
day of testing in accordance with this document.
NOTE The reason for this continuous calibration of the PVC sensor film is that it is likely to change over time
because of plasticizer loss.
A new piece of PVC sensor film shall be used for each pouring.
It is advisable that the PVC sensor film be stored in a cool and dark location so as to minimize such changes.
5.3 Crucible, whose approximate external dimensions are a height of 97 mm, a top diameter of 80 mm, a
bottom diameter of 56 mm and a capacity (brim full) of 190 ml (see Figure 1).
NOTE 1 For most molten metals, including iron, a graphite impregnated material (if an induction furnace is used)
has been found suitable for the crucible.
NOTE 2 A crucible with larger dimensions can be used if the mentioned crucible dimensions are insufficient for
the necessary quantity of molten metal or cryolite. Testing performed with a crucible with larger dimensions should
lead to the same results for normal quantities of molten metal or cryolite as a crucible with the abovementioned
dimensions.
5.4 Detachable crucible holder, to enable the crucible containing the molten metal to be moved quickly
and safely from the furnace to the test apparatus.
5.5 Furnace, capable of operating at a temperature 100 °C above the pouring temperature specified in
Annex A. The furnace type may be either a muffle furnace or an induction type furnace.
NOTE Muffle furnaces are capable of holding at least four crucibles (i.e. internal furnace size is typically
135 mm × 190 mm × 780 mm), but they take several hours to melt metals such as steel, iron and copper. Induct
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