SIST EN IEC 62990-1:2023/A11:2023

Workplace Atmospheres - Part 1: Gas detectors - Performance requirements of detectors for toxic gases

This part of IEC 62990 specifies general requirements for design, function and performance, and describes the test methods that apply to portable, transportable, and fixed equipment for the detection and concentration measurement of toxic gases and vapours in workplace atmospheres and other industrial and commercial applications. This document is applicable to continuously sensing equipment whose primary purpose is to provide an indication, alarm and/or other output function the purpose of which is to indicate the presence of a toxic gas or vapour in the atmosphere and in some cases to initiate automatic or manual protective action(s). It is applicable to equipment in which the sensor generates an electrical signal when gas is present.
This document applies to two types of equipment:
• Type HM (Health Monitoring) ‘occupational exposure’ equipment: For occupational exposure measurement, the performance requirements are focused on uncertainty of measurement of gas concentrations in the region of Occupational Exposure Limit Values (OELV). The upper limit of measurement will be defined by the manufacturer in accordance with 4.2.1.
• Type SM (Safety Monitoring) ‘general gas detection’ equipment: For general gas detection applications (e.g. safety warning, leak detection), the performance requirements are focused on alarm signalling. The upper limit of measurement will be defined by the manufacturer according to the intended use of the equipment. In general, the requirements for accuracy will be higher for Type HM equipment than for Type SM equipment. The same equipment may meet the requirements of both Type HM and Type SM. For equipment used for sensing the presence of multiple gases this document applies only to the detection of toxic gas or vapour.
This document is not applicable to equipment:
- with samplers and concentrators such as sorbents or paper tape having an irreversible indication;
- used for the measurement of gases and vapours related to the risk of explosion;
- used for the measurement of oxygen; – used only in laboratories for analysis or measurement;
- used only for process measurement purposes;
- used in the domestic environment;
- used in environmental air pollution monitoring;
- used for open-path (line of sight) area gas measurement;
- used for ventilation control in car parks or tunnels.

Arbeitsplatzatmosphäre - Teil 1: Gasmessgeräte - Anforderungen an das Betriebsverhalten von Geräten für die Messung toxischer Gase

Atmosphères des lieux de travail - Partie 1: Détecteurs de gaz - Exigences d'aptitude à la fonction des détecteurs de gaz toxiques

Zrak na delovnem mestu - 1. del: Detektorji plina - Zahteve za delovanje detektorjev strupenih plinov - Dopolnilo A11

General Information

• Status: Published
• Public Enquiry End Date: 12-Jun-2022
• Publication Date: 22-Nov-2022
• ICS: 13.040.30 - Workplace atmospheres
• ICS: 13.320 - Alarm and warning systems
• ICS: 29.260.20 - Electrical apparatus for explosive atmospheres
• Technical Committee: EXP - Product for explosive atmospheres
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 18-Oct-2022
• Due Date: 23-Dec-2022
• Completion Date: 23-Nov-2022
• Ref Project: EN IEC 62990-1:2022/A11:2022 - Workplace atmospheres - Part 1: Gas detectors - Performance requirements of detectors for toxic gases

Relations

• Amends: SIST EN IEC 62990-1:2023 - Workplace atmospheres - Part 1: Gas detectors - Performance requirements of detectors for toxic gases (IEC 62990-1:2019 + COR1:2019)
• Effective Date: 15-Jun-2021

Overview

SIST EN IEC 62990-1:2023/A11:2023 is a European standard developed by the CLC focused on gas detectors designed for toxic gases in workplace atmospheres. As a part of the IEC 62990 series, this amendment updates performance requirements, design criteria, and test methods for portable, transportable, and fixed gas detection equipment. These detectors measure the concentration of toxic gases and vapours, ensuring worker safety across industrial and commercial applications.

The standard addresses devices that continuously sense toxic gases and vapours, providing alarms and outputs to indicate hazardous conditions. It covers equipment where sensors generate electrical signals upon gas detection, applying to health monitoring and safety monitoring equipment types.

Key Topics

• Scope and Applicability

  • Applies to workplace atmospheres and other industrial settings.
  • Covers portable, transportable, and fixed gas detectors.
  • Focuses on toxic gas and vapour detection only.
  • Excludes equipment for oxygen measurement, explosion risk gases, laboratory use, environmental monitoring, ventilation control, and domestic environments.

• Equipment Types

  • Type HM (Health Monitoring): Designed for occupational exposure monitoring, emphasizing measurement accuracy near Occupational Exposure Limit Values (OELV).
  • Type SM (Safety Monitoring): Intended for general gas detection such as leak detection and alarms; requirements focus on reliable alarm signaling.
  • A single device may be certified for both Type HM and Type SM applications.

• Performance Requirements

  • Design and functional requirements aligned with industrial safety standards.
  • Higher accuracy standards for health monitoring equipment compared to safety monitoring.
  • Requirements for electromagnetic compatibility per EN 50270.
  • Software and digital technology components compliance must fulfill EN 50271 requirements.

• Testing and Verification

  • Detailed test methods to verify equipment performance under specified conditions.
  • Electromagnetic compatibility tests to ensure reliable operation in industrial environments.
  • Verification procedures for software and digital components to maintain system safety and reliability.
  • Compliance with environmental testing standards (EN 60068-2-6) for vibration and durability.
  • Protection level tests conforming to EN 60529 (IP Code).

Applications

• Workplace Safety Monitoring

  • Continuous monitoring of toxic gases to protect workers in factories, chemical plants, and mining operations.
  • Automated alarm systems to initiate protective actions in case of toxic gas presence.

• Industrial Process Safety

  • Integration in industrial facilities to detect and measure toxic gases, supporting early leak detection and maintaining safe operation conditions.

• Health Risk Management

  • Occupational exposure assessment to ensure workplace air quality meets regulatory limits, preventing long-term health issues.

• Commercial and Public Safety

  • Use in commercial zones alarm systems to mitigate risks from toxic gas exposure, enhancing public safety measures.

Related Standards

• EN 50270: Electromagnetic compatibility for gas detection apparatus.
• EN 50271: Requirements and tests related to software and digital technologies in gas detection equipment.
• EN 60068-2-6: Environmental testing for vibration resistance.
• EN 60079-0: General requirements for equipment used in explosive atmospheres.
• EN 60529: Degrees of protection provided by enclosures (IP Code).
• EN IEC 62990-1:2022: Core standard for gas detectors performance requirements, superseding earlier EN 45544 parts.

Practical Value

Adhering to SIST EN IEC 62990-1:2023/A11:2023 ensures that toxic gas detectors used in workplaces are reliable, accurate, and compliant with current safety regulations. This standard guides manufacturers and safety professionals in selecting, testing, and deploying gas detection systems that effectively prevent occupational hazards related to toxic gases. Its emphasis on software verification and electromagnetic compatibility highlights its alignment with modern digital and industrial environments, reinforcing safe and continuous toxic gas monitoring.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2023
Zrak na delovnem mestu - 1. del: Detektorji plina - Zahteve za delovanje
detektorjev strupenih plinov - Dopolnilo A11
Workplace Atmospheres - Part 1: Gas detectors - Performance requirements of
detectors for toxic gases
Arbeitsplatzatmosphäre - Teil 1: Gasmessgeräte - Anforderungen an das
Betriebsverhalten von Geräten für die Messung toxischer Gase
Atmosphères des lieux de travail - Partie 1: Détecteurs de gaz - Exigences d'aptitude à
la fonction des détecteurs de gaz toxiques
Ta slovenski standard je istoveten z: EN IEC 62990-1:2022/A11:2022
ICS:
13.040.30 Kakovost zraka na delovnem Workplace atmospheres
mestu
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62990-1:2022/A11

NORME EUROPÉENNE
EUROPÄISCHE NORM October 2022
ICS 29.260.20
English Version
Workplace atmospheres - Part 1: Gas detectors - Performance
requirements of detectors for toxic gases
Atmosphères des lieux de travail - Partie 1: Détecteurs de Arbeitsplatzatmosphäre - Teil 1: Gasmessgeräte -
gaz - Exigences d'aptitude à la fonction des détecteurs de Anforderungen an das Betriebsverhalten von Geräten für
gaz toxiques die Messung toxischer Gase
This amendment A11 modifies the European Standard EN IEC 62990-1:2022; it was approved by CENELEC on 2022-08-27. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62990-1:2022/A11:2022 E

Contents Page
European foreword . 3
1 Modification to “Introduction” . 4
2 Modification to “Scope” . 4
3 Modification to Clause 2, “Normative references” . 4
4 Modification to Clause 4, “General requirements” . 4
5 Test methods . 4
6 Addition of Annex ZA, “Normative references to international publications with their
corresponding European publications” . 5
Annex ZA (normative) Normative references to international publications with their
corresponding European publications . 6

European foreword
This document (EN IEC 62990-1:2022/A11:2022) has been prepared by CLC/SC 31-9, “Electrical
apparatus for the detection and measurement of combustible gases to be used in industrial and
commercial potentially explosive atmospheres”, of CLC/TC 31, “Electrical apparatus for potentially
explosive atmospheres”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2023-08-27
implemented at national level by publication of
an identical national standard or by
endorsement
...