EN 746-3:1997/prA1
(Amendment)Industrial thermoprocessing equipment - Part 3: Safety requirements for the generation and use of atmosphere gases
Industrial thermoprocessing equipment - Part 3: Safety requirements for the generation and use of atmosphere gases
Industrielle Thermoprozessanlagen - Teil 3: Sicherheitsanforderungen für die Erzeugung und Anwendung von Schutz- und Reaktionsgasen
Equipements thermiques industriels - Partie 3: Prescriptions de sécurité pour la génération et l'utilisation des gaz d'atmosphère
Industrijska termoprocesna oprema - 3. del: Varnostne zahteve za pridobivanje in uporabo atmosferskih plinov
General Information
- Status
- Not Published
- Technical Committee
- CEN/TC 186 - Industrial thermoprocessing - Safety
- Drafting Committee
- CEN/TC 186/WG 3 - Controlled atmospheres - Safety requirements
- Current Stage
- 5060 - Closure of Vote - Formal Approval
- Start Date
- 20-Apr-2009
- Completion Date
- 20-Apr-2009
- Directive
- 98/37/EC - Machinery
Relations
- Effective Date
- 19-Jan-2023
- Effective Date
- 22-Dec-2008
Overview
EN 746-3:1997/prA1 (CEN) is Part 3 of the European safety standard series for industrial thermoprocessing equipment. It specifies safety requirements for the generation and use of atmosphere gases (protective and reaction gases) used with industrial furnaces and thermoprocessing installations. The prA1 document is a draft amendment (2008) updating normative references and aligning the standard with current EU Machinery Directives. (Full scope text was not provided.)
Key topics and requirements
- Safety for atmosphere gas generation and use - addresses hazards linked to producing, handling and applying atmosphere gases in thermoprocessing equipment.
- Integration with EN 746‑1 - this part complements the common safety provisions in EN 746‑1 by adding requirements specific to atmosphere gases.
- Updated normative references - the amendment replaces and updates many cited standards, for example:
- EN 88 → EN 88‑1 (pressure regulators for gas appliances; inlet pressures up to and including 500 mbar)
- EN 292 → EN ISO 12100‑1 / EN ISO 12100‑2 (basic machinery safety principles)
- Replacements to IEC/EN electrical and electroheat references such as IEC 60204‑1 (modified), EN 60519‑1 / EN 60519‑3, and IEC 60364‑4‑41 / ‑4‑43 / ‑4‑44 family.
- Risk assessment and presumption of conformity - includes informative Annexes ZA and ZB explaining how compliance contributes to Essential Requirements of EU Directives (98/37/EC and 2006/42/EC).
- Document status notes - prA1 is a draft amendment circulated for acceptance; it modifies EN 746‑3:1997 and, when adopted, becomes part of the harmonized route to conformity.
Applications and who uses it
This standard is used by:
- Manufacturers of industrial furnaces and atmosphere‑gas generation systems
- Design and process engineers specifying gas supply, regulation and safety systems
- Safety and compliance officers demonstrating conformity with EU Machinery Directives
- Installers and maintenance teams responsible for safe gas handling, pressure regulation and electrical safety
- Notified bodies and certification agencies assessing conformity for CE marking
Typical applications include controlled‑atmosphere heat treatment, annealing, carburizing, nitriding and other thermoprocessing operations where protective or reactive gases are generated, supplied or consumed.
Related standards
- EN 746 series (Parts 1–8) - common and particular safety requirements for thermoprocessing equipment
- EN 88‑1 (pressure regulators)
- EN ISO 12100‑1 / EN ISO 12100‑2 (machinery safety principles)
- IEC/EN electrical and electroheat standards (IEC 60204‑1, EN 60519 series, IEC 60364 series)
Keywords: EN 746-3, industrial thermoprocessing equipment, atmosphere gases, safety requirements, CEN, machinery directive, gas generation, pressure regulators, EN 88-1, EN ISO 12100.
Frequently Asked Questions
EN 746-3:1997/prA1 is a draft published by the European Committee for Standardization (CEN). Its full title is "Industrial thermoprocessing equipment - Part 3: Safety requirements for the generation and use of atmosphere gases". This standard covers: Industrial thermoprocessing equipment - Part 3: Safety requirements for the generation and use of atmosphere gases
Industrial thermoprocessing equipment - Part 3: Safety requirements for the generation and use of atmosphere gases
EN 746-3:1997/prA1 is classified under the following ICS (International Classification for Standards) categories: 25.180.01 - Industrial furnaces in general. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 746-3:1997/prA1 has the following relationships with other standards: It is inter standard links to EN 746-3:1997+A1:2009, EN 746-3:1997. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 746-3:1997/prA1 is associated with the following European legislation: EU Directives/Regulations: 2006/42/EC, 97/23/EC, 98/37/EC; Standardization Mandates: M/071, M/079, M/396. 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.
You can purchase EN 746-3:1997/prA1 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2009
Industrijska termoprocesna oprema - 3. del: Varnostne zahteve za pridobivanje in
uporabo atmosferskih plinov
Industrial thermoprocessing equipment - Part 3: Safety requirements for the generation
and use of atmosphere gases
Industrielle Thermoprozessanlagen - Teil 3: Sicherheitsanforderungen für die Erzeugung
und Anwendung von Schutz- und Reaktionsgasen
Equipements thermiques industriels - Partie 3: Prescriptions de sécurité pour la
génération et l'utilisation des gaz d'atmosphère
Ta slovenski standard je istoveten z: EN 746-3:1997/prA1
ICS:
25.180.01 ,QGXVWULMVNHSHþLQDVSORãQR Industrial furnaces in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
FINAL DRAFT
EN 746-3:1997
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
November 2008
ICS 25.180.01
English Version
Industrial thermoprocessing equipment - Part 3: Safety
requirements for the generation and use of atmosphere gases
Equipements thermiques industriels - Partie 3: Industrielle Thermoprozessanlagen - Teil 3:
Prescriptions de sécurité pour la génération et l'utilisation Sicherheitsanforderungen für die Erzeugung und
des gaz d'atmosphère Anwendung von Schutz- und Reaktionsgasen
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 186.
This draft amendment A1, if approved, will modify the European Standard EN 746-3:1997. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.
This draft amendment was established by CEN 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 Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 746-3:1997/prA1:2008: E
worldwide for CEN national Members.
Contents Page
Foreword.3
1 Modification to the Introduction.4
2 Modification to Clause 2, Normative references .4
3 Modification to Annex ZA .6
4 Modification to Annex ZB .7
Foreword
This document (EN 746-3:1997/prA1:2008) has been prepared by Technical Committee CEN/TC 186
“Industrial thermoprocessing - Safety”, the secretariat of which is held by DIN.
This document is currently submitted to the Unique Acceptance Procedure.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are an integral part of this
document.
The new safety requirements as stated in this document comply with the additional relevant Essential
Requirements of the new Machinery Directive 2006/42/EC complementing the existing Machinery Directive
98/37/EC.
Once this document is cited in the Official Journal of the European Community under the new Machinery
Directive 2006/42/EC and has been implemented as a national standard in at least one member state, it
confers a presumption of conformity with the new relevant Essential Requirements of that new Directive and
associated EFTA regulations.
This standard forms one part of a series safety standards covering Industrial Thermoprocessing Equipment.
The full list of parts of EN 746 is given below:
EN 746 Industrial thermoprocessing equipment
Part 1: Common safety requirements for industrial thermoprocessing equipment
Part 2: Safety requirements for combustion and fuel handling systems
Part 3: Safety requirements for the generation and use of atmosphere gases
Part 4: Particular safety requirements for hot dip galvanising thermoprocessing equipment
Part 5: Particular safety requirements for salt bath thermoprocessing equipment
Part 6: Particular Safety Requirements for Material Melting, Remelting and Liquid Phase
Maintaining Thermoprocessing Equipment
Part 7: Particular Safety Requirements for Vacuum Thermoprocessing Equipment
Part 8: Particular safety requirements for quenching equipment
EN 1547 Industrial thermoprocessing equipment — Noise test code for industrial thermoprocessing
equipment including its ancillary handling equipment
An assessment of the foreseeable risks arising from the use of the equipment was carried out when this
standard was prepared.
1 Modification to the Introduction
th
Add a 4 paragraph:
"EN 746-1 contains the common safety provisions for all types of industrial thermoprocessing equipment. This
part of the standard details in addition those extra safety requirements for the equipment listed in the scope,
which need special attention.".
2 Modification to Clause 2, Normative references
st
Replace the 1 paragraph with the following:
"The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendmen
...
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