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  • ISO 21501-4:2007

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    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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    Determination of particle size distribution Single particle light interaction methods Part 4: Light scattering airborne particle counter for clean spaces

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Withdrawn date:  25-09-2018

    Language(s):  English

    Published date:  07-05-2007

    Publisher:  International Organization for Standardization

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    Abstract - (Show below) - (Hide below)

    ISO 21501-4:2007 describes a calibration and verification method for a light scattering airborne particle counter (LSAPC), which is used to measure the size and particle number concentration of particles suspended in air. The light scattering method described in ISO 21501-4:2007 is based on single particle measurements. The typical size range of particles measured by this method is between 0,1 m and 10 m in particle size.

    Instruments that conform to ISO 21501-4:2007 are used for the classification of air cleanliness in cleanrooms and associated controlled environments in accordance with ISO 14644-1, as well as the measurement of number and size distribution of particles in various environments.

    The following are within the scope of ISO 21501-4:2007:

    • size calibration;
    • verification of size setting;
    • counting efficiency;
    • size resolution;
    • false count rate;
    • maximum particle number concentration;
    • sampling flow rate;
    • sampling time;
    • sampling volume;
    • calibration interval;
    • test report.

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

    Development Note Together with ISO 21501-2 and ISO 21501-3, supersedes ISO 13323-1. (05/2007) Supersedes ISO/DIS 21501-4. (05/2018)
    Document Type Standard
    Publisher International Organization for Standardization
    Status Withdrawn
    Superseded By
    Supersedes

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

    PD CEN ISO/TS 12025:2015 Nanomaterials. Quantification of nano-object release from powders by generation of aerosols
    BS PD ISO/TS 12025 : 2012 NANOMATERIALS - QUANTIFICATION OF NANO-OBJECT RELEASE FROM POWDERS BY GENERATION OF AEROSOLS
    15/30314070 DC : 0 BS EN 16450 - AMBIENT AIR - AUTOMATED MEASURING SYSTEMS FOR THE MEASUREMENT OF THE CONCENTRATION OF PARTICULATE MATTER (PM10; PM2,5)
    BS ISO 11057:2011 Air quality. Test method for filtration characterization of cleanable filter media
    18/30333968 DC : 0 BS ISO 8573-4 - COMPRESSED AIR - CONTAMINANT MEASUREMENT - PART 4: PARTICLE CONTENT
    I.S. EN 16450:2017 AMBIENT AIR - AUTOMATED MEASURING SYSTEMS FOR THE MEASUREMENT OF THE CONCENTRATION OF PARTICULATE MATTER (PM10; PM2,5)
    BS EN ISO 14644-2:2015 Cleanrooms and associated controlled environments Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration
    BS EN ISO 29462:2013 Field testing of general ventilation filtration devices and systems for in situ removal efficiency by particle size and resistance to airflow
    BS EN ISO 16890-2:2016 Air filters for general ventilation Measurement of fractional efficiency and air flow resistance
    UNE-EN ISO 16890-2:2017 Air filters for general ventilation - Part 2: Measurement of fractional efficiency and air flow resistance (ISO 16890-2:2016)
    UNE-EN ISO 14644-1:2016 Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness by particle concentration (ISO 14644-1:2015)
    UNI EN ISO 29461-1 : 2013 AIR INTAKE FILTER SYSTEMS FOR ROTARY MACHINERY - TEST METHODS - PART 1: STATIC FILTER ELEMENTS
    ISO 11057:2011 Air quality — Test method for filtration characterization of cleanable filter media
    PD CEN/TS 16450:2013 Ambient air. Automated measuring systems for the measurement of the concentration of particulate matter (PM10; PM2,5)
    I.S. EN ISO 16890-2:2016 AIR FILTERS FOR GENERAL VENTILATION - PART 2: MEASUREMENT OF FRACTIONAL EFFICIENCY AND AIR FLOW RESISTANCE (ISO 16890-2:2016)
    I.S. EN 779:2012 PARTICULATE AIR FILTERS FOR GENERAL VENTILATION - DETERMINATION OF THE FILTRATION PERFORMANCE
    16/30284668 DC : 0 BS ISO 29464 - CLEANING OF AIR AND OTHER GASES - TERMINOLOGY
    PREN ISO 14644-1 : DRAFT 2010 CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS - PART 1: CLASSIFICATION OF AIR CLEANLINESS BY PARTICLE CONCENTRATION
    UNI CEN/TS 16450 : 2013 AMBIENT AIR - AUTOMATED MEASURING SYSTEMS FOR THE MEASUREMENT OF THE CONCENTRATION OF PARTICULATE MATTER (PM10; PM2,5)
    BS EN 16450:2017 Ambient air. Automated measuring systems for the measurement of the concentration of particulate matter (PM10; PM2,5)
    DIN EN 16450 E : 2017 AMBIENT AIR - AUTOMATED MEASURING SYSTEMS FOR THE MEASUREMENT OF THE CONCENTRATION OF PARTICULATE MATTER (PM10; PM2,5)
    DIN EN ISO 29462:2013-11 Field testing of general ventilation filtration devices and systems for in situ removal efficiency by particle size and resistance to airflow (ISO 29462:2013)
    DD ISO/TS 21220:2009 Particulate air filters for general ventilation. Determination of filtration performance
    UNE-EN ISO 29462:2014 Field testing of general ventilation filtration devices and systems for in situ removal efficiency by particle size and resistance to airflow (ISO 29462:2013)
    VDI 3491 Blatt 1:2016-07 Measurement of particles - Methods for generating test aerosols - Principles and overview
    UNE-EN 16450:2017 Ambient air - Automated measuring systems for the measurement of the concentration of particulate matter (PM10; PM2,5)
    16/30326493 DC : 0 BS EN ISO 14644-3 - CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS - PART 3: TEST METHODS
    CEN ISO/TS 12025:2015 Nanomaterials - Quantification of nano-object release from powders by generation of aerosols (ISO/TS 12025:2012)
    ISO 29464:2017 Cleaning of air and other gases Terminology
    DIN EN ISO 14644-2:2016-05 CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS - PART 2: MONITORING TO PROVIDE EVIDENCE OF CLEANROOM PERFORMANCE RELATED TO AIR CLEANLINESS BY PARTICLE CONCENTRATION (ISO 14644-2:2015)
    DIN EN ISO 14644-1:2016-06 CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS - PART 1: CLASSIFICATION OF AIR CLEANLINESS BY PARTICLE CONCENTRATION (ISO 14644-1:2015)
    DIN EN ISO 16890-2 E : 2017 AIR FILTERS FOR GENERAL VENTILATION - PART 2: MEASUREMENT OF FRACTIONAL EFFICIENCY AND AIR FLOW RESISTANCE (ISO 16890-2:2016)
    DIN EN ISO 29461-1:2014-03 Air intake filter systems for rotary machinery - Test methods - Part 1: Static filter elements (ISO 29461-1:2013)
    UNE-EN ISO 14644-2:2016 Cleanrooms and associated controlled environments - Part 2: Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration (ISO 14644-2:2015)
    UNE-EN 779:2013 Particulate air filters for general ventilation - Determination of the filtration performance
    DIN EN ISO 16890-2:2017-08 Air filters for general ventilation - Part 2: Measurement of fractional efficiency and air flow resistance (ISO 16890-2:2016)
    EN ISO 14644-2:2015 Cleanrooms and associated controlled environments - Part 2: Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration (ISO 14644-2:2015)
    I.S. EN ISO 29462:2013 FIELD TESTING OF GENERAL VENTILATION FILTRATION DEVICES AND SYSTEMS FOR IN SITU REMOVAL EFFICIENCY BY PARTICLE SIZE AND RESISTANCE TO AIRFLOW (ISO 29462:2013)
    ISO 29461-1:2013 Air intake filter systems for rotary machinery Test methods Part 1: Static filter elements
    UNI EN ISO 29462 : 2013 FIELD TESTING OF GENERAL VENTILATION FILTRATION DEVICES AND SYSTEMS FOR IN SITU REMOVAL EFFICIENCY BY PARTICLE SIZE AND RESISTANCE TO AIRFLOW
    UNI EN 779 : 2012 PARTICULATE AIR FILTERS FOR GENERAL VENTILATION - DETERMINATION OF THE FILTRATION PERFORMANCE
    09/30182868 DC : 0 BS ISO 29463-2 - HIGH-EFFICIENCY FILTERS AND FILTER MEDIA FOR REMOVING PARTICLES FROM AIR - PART 2: AEROSOL PRODUCTION, MEASURING EQUIPMENT AND PARTICLE-COUNTING STATISTICS
    ISO 29463-2:2011 High-efficiency filters and filter media for removing particles in air — Part 2: Aerosol production, measuring equipment and particle-counting statistics
    10/30152865 DC : DRAFT DEC 2010 BS EN ISO 14644-1 - CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS - PART 1: CLASSIFICATION OF AIR CLEANLINESS BY PARTICLE CONCENTRATION
    DIN ISO 11057:2012-05 Air quality - Test method for filtration characterization of cleanable filter media (ISO 11057:2011)
    16/30348371 DC : 0 BS ISO 14644-12 - CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS - PART 12: SPECIFICATIONS FOR MONITORING AIR CLEANLINESS BY NANOSCALE PARTICLE CONCENTRATION
    BS ISO 29464:2017 Cleaning of air and other gases. Terminology
    ISO 29463-5:2011 High-efficiency filters and filter media for removing particles in air Part 5: Test method for filter elements
    BS EN 779:2012 Particulate air filters for general ventilation. Determination of the filtration performance
    11/30211680 DC : 0 BS EN ISO 29462 - FIELD TESTING OF GENERAL VENTILATION FILTRATION DEVICES AND SYSTEMS FOR IN-SITU REMOVAL EFFICIENCY BY PARTICLE SIZE AND RESISTANCE TO AIRFLOW
    ISO 16890-2:2016 Air filters for general ventilation — Part 2: Measurement of fractional efficiency and air flow resistance
    ISO/TS 12025:2012 Nanomaterials Quantification of nano-object release from powders by generation of aerosols
    ISO 14644-1:2015 Cleanrooms and associated controlled environments Part 1: Classification of air cleanliness by particle concentration
    ISO/TS 21220:2009 Particulate air filters for general ventilation Determination of filtration performance
    UNE-EN ISO 29461-1:2014 Air intake filter systems for rotary machinery - Test methods - Part 1: Static filter elements (ISO 29461-1:2013)
    BS EN ISO 14644-1:2015 Cleanrooms and associated controlled environments Classification of air cleanliness by particle concentration
    10/30211683 DC : 0 BS EN ISO 29461-1 - AIR INTAKE FILTER SYSTEMS FOR ROTARY MACHINERY - TEST METHODS - PART 1: STATIC FILTER ELEMENTS
    14/30268894 DC : 0 BS EN ISO 16890-2 - AIR FILTERS FOR GENERAL VENTILATION - PART 2: MEASUREMENT OF FRACTIONAL EFFICIENCY AND AIR FLOW RESISTANCE
    I.S. EN ISO 14644-2:2015 CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS - PART 2: MONITORING TO PROVIDE EVIDENCE OF CLEANROOM PERFORMANCE RELATED TO AIR CLEANLINESS BY PARTICLE CONCENTRATION (ISO 14644-2:2015)
    I.S. EN ISO 14644-1:2015 CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS - PART 1: CLASSIFICATION OF AIR CLEANLINESS BY PARTICLE CONCENTRATION (ISO 14644-1:2015)
    EN ISO 16890-2:2016 Air filters for general ventilation - Part 2: Measurement of fractional efficiency and air flow resistance (ISO 16890-2:2016)
    EN ISO 14644-1:2015 Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness by particle concentration (ISO 14644-1:2015)
    ONORM EN ISO 29461-1 : 2014 AIR INTAKE FILTER SYSTEMS FOR ROTARY MACHINERY - TEST METHODS - PART 1: STATIC FILTER ELEMENTS (ISO 29461-1:2013)
    EN 779:2012 Particulate air filters for general ventilation - Determination of the filtration performance
    EN ISO 29462:2013 Field testing of general ventilation filtration devices and systems for in situ removal efficiency by particle size and resistance to airflow (ISO 29462:2013)
    13/30261893 DC : 0 BS EN ISO 14644-12 - CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS - PART 12: CLASSIFICATION OF AIR CLEANLINESS BY NANOSCALE PARTICLE CONCENTRATION
    S.R. CEN ISO/TS 12025:2015 NANOMATERIALS - QUANTIFICATION OF NANO-OBJECT RELEASE FROM POWDERS BY GENERATION OF AEROSOLS (ISO/TS 12025:2012)
    S.R. CEN/TS 16450:2013 AMBIENT AIR - AUTOMATED MEASURING SYSTEMS FOR THE MEASUREMENT OF THE CONCENTRATION OF PARTICULATE MATTER (PM10; PM2,5)
    DIN EN 16450:2015-10 (Draft) AMBIENT AIR - AUTOMATED MEASURING SYSTEMS FOR THE MEASUREMENT OF THE CONCENTRATION OF PARTICULATE MATTER (PM10; PM2,5)
    EN ISO 29461-1:2013 Air intake filter systems for rotary machinery - Test methods - Part 1: Static filter elements (ISO 29461-1:2013)
    BS EN ISO 29461-1:2013 Air intake filter systems for rotary machinery. Test methods Static filter elements
    ISO 14644-2:2015 Cleanrooms and associated controlled environments Part 2: Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration
    ISO 29462:2013 Field testing of general ventilation filtration devices and systems for in situ removal efficiency by particle size and resistance to airflow
    I.S. EN ISO 29461-1:2013 AIR INTAKE FILTER SYSTEMS FOR ROTARY MACHINERY - TEST METHODS - PART 1: STATIC FILTER ELEMENTS (ISO 29461-1:2013)
    EN 16450:2017 Ambient air - Automated measuring systems for the measurement of the concentration of particulate matter (PM10; PM2,5)
    CEN/TS 16450:2013 Ambient air - Automated measuring systems for the measurement of the concentration of particulate matter (PM10; PM2,5)
    DIN EN 779:2012-10 PARTICULATE AIR FILTERS FOR GENERAL VENTILATION - DETERMINATION OF THE FILTRATION PERFORMANCE

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

    ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
    ISO 9276-1:1998 Representation of results of particle size analysis — Part 1: Graphical representation
    ISO 14644-2:2015 Cleanrooms and associated controlled environments Part 2: Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration
    ISO/IEC Guide 99:2007 International vocabulary of metrology Basic and general concepts and associated terms (VIM)
    ISO 14644-1:2015 Cleanrooms and associated controlled environments Part 1: Classification of air cleanliness by particle concentration
    ISO 27891:2015 Aerosol particle number concentration — Calibration of condensation particle counters
    ISO 15900:2009 Determination of particle size distribution Differential electrical mobility analysis for aerosol particles
    ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
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