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  • EN 60721-3-1:1997

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 1: Storage

    Available format(s): 

    Superseded date:  01-04-2018

    Language(s): 

    Published date:  26-03-1997

    Publisher:  European Committee for Standards - Electrical

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    1 Scope and object
    2 Normative references
    3 General
    4 Definitions
    5 Classification of groups of environmental parameters
      and their severities
    6 Sets of environmental condition class combinations
    Tables
    1 Classification of climatic conditions
    2 Classification of special climatic conditions
    3 Classification of biological conditions
    4 Classification of chemically active substances
    5 Classification of mechanically active substances
    6 Classification of mechanical conditions
    7 Sets of environmental class combinations
    Figure 1
    Annexes
    A Summary of conditions covered by the classes
    B Summary of conditions covered by the sets of class
      combinations
    C Explanation of the environmental conditions in
      tropical areas as specified in classes 1K10 and 1K11

    Abstract - (Show below) - (Hide below)

    Classifies groups of environmental parameters and their severities to which products together with their packaging, if any, are subjected when stored.

    General Product Information - (Show below) - (Hide below)

    Committee CLC/SR 104
    Development Note Supersedes HD 478.3.1. (05/2001) Redesignated as EN IEC 60721-3-1. (04/2018)
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    I.S. EN IEC 62828-1:2018 REFERENCE CONDITIONS AND PROCEDURES FOR TESTING INDUSTRIAL AND PROCESS MEASUREMENT TRANSMITTERS - PART 1: GENERAL PROCEDURES FOR ALL TYPES OF TRANSMITTERS
    CEI EN 60721-3-5 : 1998 CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 3: CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - SECTION 5: GROUND VEHICLE INSTALLATIONS
    PD CLC/TR 62685:2011 Industrial communication networks. Profiles. Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs)
    CLC/TS 62603-1:2014 Industrial process control systems - Guideline for evaluating process control systems - Part 1: Specifications
    BS EN 61204:1995 Low-voltage power supply devices, d.c. output. Performance characteristics and safety requirements
    BS EN 61760-2:2007 Surface mounting technology Transportation and storage conditions of surface mounting devices (SMD). Application guide
    CEI EN 60654-1 : 1998 INDUSTRIAL-PROCESS MEASUREMENTS AND CONTROL EQUIPMENT - OPERATING CONDITIONS - PART 1: CLIMATIC CONDITIONS
    CEI EN 61753-101-3 : 2010 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS PERFORMANCE STANDARD - PART 101-3: FIBRE MANAGEMENT SYSTEMS FOR CATEGORY U - UNCONTROLLED ENVIRONMENT
    CEI EN 61760-2 : 2008 SURFACE MOUNTING TECHNOLOGY - PART 2: TRANSPORTATION AND STORAGE CONDITIONS OF SURFACE MOUNTING DEVICES (SMD) - APPLICATION GUIDE
    EN 50470-1:2006 Electricity metering equipment (a.c.) - Part 1: General requirements, tests and test conditions - Metering equipment (class indexes A, B and C)
    I.S. EN 62586-1:2017 POWER QUALITY MEASUREMENT IN POWER SUPPLY SYSTEMS - PART 1: POWER QUALITY INSTRUMENTS (PQI)
    I.S. EN 62488-2:2017 POWER LINE COMMUNICATION SYSTEMS FOR POWER UTILITY APPLICATIONS - PART 2: ANALOGUE POWER LINE CARRIER TERMINALS OR APLC
    I.S. EN 60495:1994 SINGLE SIDEBAND POWER-LINE CARRIER TERMINALS
    BS EN 61557-8:2015 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures Insulation monitoring devices for IT systems
    BS EN 61191-1:2013 Printed board assemblies Generic specification. Requirements for soldered electrical and electronic assemblies using surface mount and related assembly technologies
    EN 50178:1997 Electronic equipment for use in power installations
    HD 637 S1:1999/corrigendum:2005 POWER INSTALLATIONS EXCEEDING 1 KV A.C.
    EN 61753-111-9:2010 Fibre optic interconnecting devices and passive components - Performance standard - Part 111-9: Sealed closures for category S - Subterranean
    EN 62586-1:2017 Power quality measurement in power supply systems - Part 1: Power quality instruments (PQI)
    EN 61753-101-3:2008 Fibre optic interconnecting devices and passive components performance standard - Part 101-3: Fibre management systems for Category U - Uncontrolled environment
    EN 60721-3-5:1997 Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 5: Ground vehicle installations
    EN 60870-2-2:1996 Telecontrol equipment and systems - Part 2: Operating conditions - Section 2: Environmental conditions (climatic, mechanical and other non-electrical influences)
    I.S. EN 61191-1:2013 PRINTED BOARD ASSEMBLIES - PART 1: GENERIC SPECIFICATION - REQUIREMENTS FOR SOLDERED ELECTRICAL AND ELECTRONIC ASSEMBLIES USING SURFACE MOUNT AND RELATED ASSEMBLY TECHNOLOGIES (IEC 61191-1:2013 (EQV))
    EN 61753-111-7:2010 Fibre optic interconnecting devices and passive components - Performance standard - Part 111-7: Sealed closures for category A - Aerial
    EN 60495:1994 Single sideband power-line carrier terminals
    BS EN 60044-1:1999 INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS
    BS EN 61753-111-7:2010 Fibre optic interconnecting devices and passive components performance standard Sealed closures for category A. Aerial
    BS EN 61753-101-3:2009 Fibre optic interconnecting devices and passive components performance standard Fibre management systems for category U. Uncontrolled environment
    EN 61800-2:2015 Adjustable speed electrical power drive systems - Part 2: General requirements - Rating specifications for low voltage adjustable speed a.c. power drive systems
    PD CLC/TS 62603-1:2014 Industrial process control systems. Guideline for evaluating process control systems Specifications
    EN 61753-111-8:2010 Fibre optic interconnecting devices and passive components - Performance standard - Part 111-8: Sealed closures for category G - Ground
    BS EN 61800-4:2003 Adjustable speed electrical power drive systems General requirements. Rating specifications for a.c. power drive systems above 1000 V a.c. and not exceeding 35 kV
    BS EN 62586-1:2017 Power quality measurement in power supply systems Power quality instruments (PQI)
    CEI EN 62488-2 : 1ED 2018 POWER LINE COMMUNICATION SYSTEMS FOR POWER UTILITY APPLICATIONS - PART 2: ANALOGUE POWER LINE CARRIER TERMINALS OR APLC
    BS EN 60068-2-27:2009 Environmental testing Tests. Test Ea and guidance. Shock
    BS EN 50178:1998 Electronic equipment for use in power installations
    CLC/TR 62685 : 2011 INDUSTRIAL COMMUNICATION NETWORKS - PROFILES - ASSESSMENT GUIDELINE FOR SAFETY DEVICES USING IEC 61784-3 FUNCTIONAL SAFETY COMMUNICATION PROFILES (FSCPS) (IEC/TR 62685:2010)
    DIN EN 61800-1 : 1999-08 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 1: GENERAL REQUIREMENTS; RATING SPECIFICATIONS FOR LOW VOLTAGE ADJUSTABLE SPEED D.C. POWER DRIVE SYSTEMS
    VDE 0160-101 : 1999-08 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - GENERAL REQUIREMENTS - RATING SPECIFICATIONS FOR LOW VOLTAGE ADJUSTABLE SPEED D.C. POWER DRIVE SYSTEMS
    EN 61557-8:2015/AC:2016-06 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems
    CEI EN 61800-1 : 2000 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 1: GENERAL REQUIREMENTS - RATING SPECIFICATIONS FOR LOW VOLTAGE ADJUSTABLE SPEED D.C. POWER DRIVE SYSTEMS
    VDE 0557-1 : 2001 LOW-VOLTAGE POWER SUPPLY DEVICES, DC OUTPUT - PERFORMANCE CHARACTERISTICS AND SAFETY REQUIREMENTS
    CEI EN 62974-1 : 1ED 2017 MONITORING AND MEASURING SYSTEMS USED FOR DATA COLLECTION, GATHERING AND ANALYSIS - PART 1: DEVICE REQUIREMENTS
    BS EN 60654-1:1993 Industrial-process measurement and control equipment. Operating conditions. Climatic conditions
    EN 62974-1:2017 Monitoring and measuring systems used for data collection, gathering and analysis - Part 1: Device requirements
    CEI CLC/TR 62685 : 2012 INDUSTRIAL COMMUNICATION NETWORKS - PROFILES - ASSESSMENT GUIDELINE FOR SAFETY DEVICES USING IEC 61784-3 FUNCTIONAL SAFETY COMMUNICATION PROFILES (FSCPS)
    I.S. EN 50470-1:2006 ELECTRICITY METERING EQUIPMENT (A.C.) - PART 1: GENERAL REQUIREMENTS, TESTS AND TEST CONDITIONS - METERING EQUIPMENT (CLASS INDEXES A, B AND C)
    CEI EN 60068-2-27 : 2012 ENVIRONMENTAL TESTING - PART 2-27: TESTS - TEST EA AND GUIDANCE: SHOCK
    CEI EN 61753-101-2 : 2007 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS PERFORMANCE STANDARD - PART 101-2: FIBRE MANAGEMENT SYSTEMS FOR CATEGORY C - CONTROLLED ENVIRONMENT
    EN 61760-2:2007 Surface mounting technology - Part 2: Transportation and storage conditions of surface mounting devices (SMD) - Application guide
    I.S. EN 61204:1996 LOW-VOLTAGE POWER SUPPLY DEVICES, D.C. OUTPUT - PERFORMANCE CHARACTERISTICS
    I.S. EN 61557-9:2015 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 9: EQUIPMENT FOR INSULATION FAULT LOCATION IN IT SYSTEMS
    UNE-EN 61557-8:2016 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems
    OVE/ONORM EN 61760-2 : 2007 SURFACE MOUNTING TECHNOLOGY - PART 2: TRANSPORTATION AND STORAGE CONDITIONS OF SURFACE MOUNTING DEVICES (SMD) - APPLICATION GUIDE
    BS EN 60044-2:1999 INSTRUMENT TRANSFORMERS - PART 2: INDUCTIVE VOLTAGE TRANSFORMERS
    BS EN 60044-7:2000 Instrument transformers Electronic voltage transformers
    S.R. CLC/TS 62603-1:2014 INDUSTRIAL PROCESS CONTROL SYSTEMS - GUIDELINE FOR EVALUATING PROCESS CONTROL SYSTEMS - PART 1: SPECIFICATIONS
    I.S. EN 61753-101-3:2008 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS PERFORMANCE STANDARD - PART 101-3: FIBRE MANAGEMENT SYSTEMS FOR CATEGORY U - UNCONTROLLED ENVIRONMENT
    BS EN 62974-1:2017 Monitoring and measuring systems used for data collection, gathering and analysis Device requirements
    UNE-EN 62974-1:2018 Monitoring and measuring systems used for data collection, gathering and analysis - Part 1: Device requirements
    NF EN 60068 2-29 : 1994 BASIC ENVIRONMENTAL TESTING PROCEDURES - PART 2: TESTS - TEST EB AND GUIDANCE: BUMP
    DIN EN 60654-1:1994-02 INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL EQUIPMENT; OPERATING CONDITIONS; PART 1: CLIMATIC CONDITIONS
    CEI EN 50470-1 : 2007 ELECTRICITY METERING EQUIPMENT (A.C.) - PART 1: GENERAL REQUIREMENTS, TESTS AND TEST CONDITIONS - METERING EQUIPMENT (CLASS INDEXES A, B AND C)
    EN 62488-2:2017 Power line communication systems for power utility applications - Part 2: Analogue power line carrier terminals or APLC
    S.R. CLC/TR 62685:2011 INDUSTRIAL COMMUNICATION NETWORKS - PROFILES - ASSESSMENT GUIDELINE FOR SAFETY DEVICES USING IEC 61784-3 FUNCTIONAL SAFETY COMMUNICATION PROFILES (FSCPS) (IEC/TR 62685:2010 (EQV))
    BS EN 50470-1 : 2006 ELECTRICITY METERING EQUIPMENT (A.C.) - PART 1: GENERAL REQUIREMENTS, TESTS AND TEST CONDITIONS - METERING EQUIPMENT (CLASS INDEXES A, B AND C)
    I.S. EN 60721-3-5:1999 CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 3: CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - SECTION 5: GROUND VEHICLE INSTALLATIONS
    EN IEC 62828-1:2018 Reference conditions and procedures for testing industrial and process measurement transmitters - Part 1: General procedures for all types of transmitters
    I.S. EN 60068-2-27:2009 ENVIRONMENTAL TESTING - PART 2-27: TESTS - TEST EA AND GUIDANCE: SHOCK
    I.S. EN 61557-8:2015 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 8: INSULATION MONITORING DEVICES FOR IT SYSTEMS
    UNE-EN 50491-2:2011 General requirements for Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) -- Part 2: Environmental conditions
    95/214868 DC : 0 PREN 50178 - ELECTRONIC EQUIPMENT FOR USE IN POWER INSTALLATIONS
    BS EN 50491-2 : 2010 GENERAL REQUIREMENTS FOR HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) - PART 2: ENVIRONMENTAL CONDITIONS
    I.S. EN 62974-1:2017 MONITORING AND MEASURING SYSTEMS USED FOR DATA COLLECTION, GATHERING AND ANALYSIS - PART 1: DEVICE REQUIREMENTS
    BS EN 61800-2:2015 Adjustable speed electrical power drive systems General requirements. Rating specifications for low voltage adjustable speed a.c. power drive systems
    I.S. EN 50491-2:2010 GENERAL REQUIREMENTS FOR HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) - PART 2: ENVIRONMENTAL CONDITIONS
    BS EN 62488-2:2017 Power line communication systems for power utility applications Analogue power line carrier terminals or APLC
    CEI EN 62586-1 : 2016 POWER QUALITY MEASUREMENT IN POWER SUPPLY SYSTEMS - PART 1: POWER QUALITY INSTRUMENTS (PQI)
    BS EN 61753-101-2:2006 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS PERFORMANCE STANDARD - PART 101-2: FIBRE MANAGEMENT SYSTEMS FOR CATEGORY C - CONTROLLED ENVIRONMENT
    CEI EN 61557-8 : 2016 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 8: INSULATION MONITORING DEVICES FOR IT SYSTEMS
    BS EN 61753-111-9:2010 Fibre optic interconnecting devices and passive components performance standard Sealed closures for category S. Subterranean
    BS EN 61753-111-8:2010 Fibre optic interconnecting devices and passive components performance standard Sealed closures for category G. Ground
    I.S. EN 61753-101-2:2006 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS PERFORMANCE STANDARD - PART 101-2: FIBRE MANAGEMENT SYSTEMS FOR CATEGORY C - CONTROLLED ENVIRONMENT
    NF EN 50491-2 : 2011 AMD 1 2017 GENERAL REQUIREMENTS FOR HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) - PART 2: ENVIRONMENTAL CONDITIONS
    CEI EN 61800-4 : 2003 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 4: GENERAL REQUIREMENTS - RATING SPECIFICATIONS FOR A/C/ POWER DRIVE SYSTEMS ABOVE 1000 V A.C. AND NOT EXCEEDING 35 KV
    I.S. EN 61760-2:2007 SURFACE MOUNTING TECHNOLOGY - PART 2: TRANSPORTATION AND STORAGE CONDITIONS OF SURFACE MOUNTING DEVICES (SMD) - APPLICATION GUIDE
    I.S. HD 637:1999 POWER INSTALLATIONS EXCEEDING 1 KV A.C.
    I.S. EN 61800-2:2015 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 2: GENERAL REQUIREMENTS - RATING SPECIFICATIONS FOR LOW VOLTAGE ADJUSTABLE SPEED A.C. POWER DRIVE SYSTEMS
    I.S. EN 61800-4:2003 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 4: GENERAL REQUIREMENTS - RATING SPECIFICATIONS FOR A.C. POWER DRIVE SYSTEMS ABOVE 1000 V A.C. AND NOT EXCEEDING 35 KV
    I.S. EN 60870-2-2:1999 TELECONTROL EQUIPMENT AND SYSTEMS - PART 2: OPERATING CONDITIONS - SECTION 2: ENVIRONMENTAL CONDITIONS (CLIMATIC, MECHANICAL AND OTHER NON-ELECTRICAL INFLUENCES)
    BS EN 61557-9:2015 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures Equipment for insulation fault location in IT systems
    EN 60044-1:1999/A2:2003 INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS
    EN 61557-9:2015/AC:2017-02 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 9: EQUIPMENT FOR INSULATION FAULT LOCATION IN IT SYSTEMS (IEC 61557-9:2014/COR2:2017)
    EN 61191-1:2013 PRINTED BOARD ASSEMBLIES - PART 1: GENERIC SPECIFICATION - REQUIREMENTS FOR SOLDERED ELECTRICAL AND ELECTRONIC ASSEMBLIES USING SURFACE MOUNT AND RELATED ASSEMBLY TECHNOLOGIES (IEC 61191-1:2013)
    EN 61753-101-2 : 2006 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS PERFORMANCE STANDARD - PART 101-2: FIBRE MANAGEMENT SYSTEMS FOR CATEGORY C - CONTROLLED ENVIRONMENT
    EN 61800-4:2003 Adjustable speed electrical power drive systems - Part 4: General requirements - Rating specifications for a.c. power drive systems above 1 000 V a.c. and not exceeding 35 kV
    EN 60068-2-27:2009 Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock
    EN 50491-2 : 2010 AMD 1 2015 GENERAL REQUIREMENTS FOR HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) - PART 2: ENVIRONMENTAL CONDITIONS
    EN 61204:1995/A1:2001 LOW-VOLTAGE POWER SUPPLY DEVICES, D.C. OUTPUT - PERFORMANCE CHARACTERISTICS (IEC 61204:1993, MODIFIED + A1:2001)
    EN 60044-2:1999/A2:2003 INSTRUMENT TRANSFORMERS - PART 2: INDUCTIVE VOLTAGE TRANSFORMERS

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60721-1:1990+AMD1:1992+AMD2:1995 CSV Classification of environmental conditions - Part 1: Environmental parameters and their severities
    EN 60721-3-0:1993 Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Introduction
    HD 478.2.1 : 200S1 CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - ENVIRONMENTAL CONDITIONS APPEARING IN NATURE - TEMPERATURE AND HUMIDITY
    IEC 60721-2-1:2013 Classification of environmental conditions - Part 2-1: Environmental conditions appearing in nature - Temperature and humidity
    IEC 60721-3-0:1984+AMD1:1987 CSV Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Introduction
    IEC 60721-3-2:1997 Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 2: Transportation
    IEC 60721-3-3:1994+AMD1:1995+AMD2:1996 CSV Classification of environmental conditions - Part 3-3: Classification of groups of environmental parameters and their severities - Stationary use at weatherprotected locations
    EN 60721-1:1995/A2:1995 CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 1: ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES
    EN 60721-3-2:1997 Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 2: Transportation
    EN 60721-3-4:1995/A1:1997 CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 3: CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - SECTION 4: STATIONARY USE AT NON-WEATHER-PROTECTED LOCATIONS
    EN 60721-3-3 : 95 AMD 2 97 CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - STATIONARY USE AT WEATHER-PROTECTED LOCATIONS
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