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number concentration

number concentration, Total:38 items.

In the international standard classification, number concentration involves: Particle size analysis. Sieving, Air quality, Physics. Chemistry.

British Standards Institution (BSI), number concentration

BS ISO 27891:2015 Aerosol particle number concentration. Calibration of condensation particle counters
BS PD CEN/TS 16976:2016 Ambient air. Determination of the particle number concentration of atmospheric aerosol
23/30436644 DC BS ISO 19430. Determination of particle size distribution and number concentration by particle tracking analysis (PTA)
BS ISO 8672:2014 Air quality. Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy. Membrane filter method
BS EN 16966:2018 Workplace exposure. Measurement of exposure by inhalation of nano-objects and their aggregates and agglomerates. Metrics to be used such as number concentration, surface area concentration and mass concentration
BS EN ISO 28439:2011 Workplace atmospheres. Characterization of ultrafine aerosols/nanoaerosols. Determination of the size distribution and number concentration using differential electrical mobility analysing systems
BS ISO 16000-42:2023 Indoor air - Measurement of the particle number concentration by condensation particle counters

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, number concentration

GB/T 42660-2023 Calibration of aerosol particle number concentration condensation nuclei particle counters

International Organization for Standardization (ISO), number concentration

ISO/DIS 19430 Determination of particle size distribution and number concentration by particle tracking analysis (PTA)
ISO/TR 23016-3:2021 Fine bubble technology - Agricultural applications - Part 3: Guidelines for the minimum viable number concentration of ultrafine bubbles for promoting the germination of barley seeds
ISO/FDIS 16000-42 Indoor air — Part 42: Measurement of the particle number concentration by condensation particle counters
ISO 16000-42:2023 Indoor air — Part 42: Measurement of the particle number concentration by condensation particle counters

Association of German Mechanical Engineers, number concentration

VDI 3867 Blatt 1-2009 Measurement of particulate matter in ambient air - Determination of the particle number concentration and number size distribution of aerosols - Fundamentals
VDI 3867 Blatt 6-2012 Measurement of particles in ambient air - Determination of the particle number concentration and number size distribution of aerosols - Electrical Low Pressure Impactor (ELPI)

Occupational Health Standard of the People's Republic of China, number concentration

GBZ/T 192.6-2018 Determination of dust in the air of workplaces - Part 6: Ultrafine particles and total fine particle concentration

Korean Agency for Technology and Standards (KATS), number concentration

KS I ISO 8672-2006(2017) Air quality－Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy(Membrane filter method)
KS I ISO 28439:2013 Workplace atmospheres ― Characterization of ultrafine aerosols/ nanoaerosols ― Determination of the size distribution and number concentration using differential electrical mobility analysing systems

Lithuanian Standards Office , number concentration

LST ISO 8672:2001 Air quality. Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy. Membrane filter method
LST EN ISO 28439:2011 Workplace atmospheres - Characterization of ultrafine aerosols/nanoaerosols - Determination of the size distribution and number concentration using differential electrical mobility analysing systems (ISO 28439:2011)

CEN - European Committee for Standardization, number concentration

PREN 16897-2015 Workplace exposure - Characterization of ultrafine aerosols anoaerosols - Determination of number concentration using condensation particle counters
EN 16966:2018 Workplace exposure - Measurement of exposure by inhalation of nano-objects and their aggregates and agglomerates - Metrics to be used such as number concentration@ surface area concentration and mass concentration

German Institute for Standardization, number concentration

DIN EN 16966:2019 Workplace exposure - Measurement of exposure by inhalation of nano-objects and their aggregates and agglomerates - Metrics to be used such as number concentration, surface area concentration and mass concentration
DIN EN 16897:2017 Workplace exposure - Characterization of ultrafine aerosols/nanoaerosols - Determination of number concentration using condensation particle counters
DIN EN 16897:2017-09 Workplace exposure - Characterization of ultrafine aerosols/nanoaerosols - Determination of number concentration using condensation particle counters; German version EN 16897:2017
DIN EN 16966:2019-01 Workplace exposure - Measurement of exposure by inhalation of nano-objects and their aggregates and agglomerates - Metrics to be used such as number concentration, surface area concentration and mass concentration; German version EN 16966:2018
DIN EN ISO 28439:2011-07 Workplace atmospheres - Characterization of ultrafine aerosols/ nanoaerosols - Determination of the size distribution and number concentration using differential electrical mobility analysing systems (ISO 28439:2011); German version EN ISO 28439:2011
DIN ISO 16000-42:2022-01 Indoor air - Part 42: Measurement of the particle number concentration by Condensation Particle Counters (ISO/DIS 16000-42:2021); Text in German and English / Note: Date of issue 2021-12-10

Association Francaise de Normalisation, number concentration

NF X43-602*NF EN 16966:2018 Workplace exposure - Measurement of exposure by inhalation of nano-objects and their aggregates and agglomerates - Metrics to be used such as number concentration, surface area concentration and mass concentration
NF X43-223*NF EN 16897:2017 Workplace exposure - Characterization of ultrafine aerosols/nanoaerosols - Determination of number concentration using condensation particle counters
NF EN 16897:2017 Exposition sur les lieux de travail - Caractérisation des aérosols ultrafins/nanoaérosols - Détermination de la concentration en nombre à l'aide de compteurs de particules à condensation
NF EN 16966:2018 Exposition sur les lieux de travail - Mesurage de l'exposition par inhalation de nano-objets et de leurs agrégats et agglomérats - Métriques à utiliser telles que concentration en nombre, concentration en surface et concentration en masse
NF EN ISO 28439:2011 Air des lieux de travail - Caractérisation des aérosols ultrafins/nanoaérosols - Détermination de la distribution granulométrique et de la concentration en nombre à l'aide de systèmes d'analyse différentielle de mobilité électrique

European Committee for Standardization (CEN), number concentration

EN 16897:2017 Workplace exposure - Characterization of ultrafine aerosols/nanoaerosols - Determination of number concentration using condensation particle counters

ES-UNE, number concentration

UNE-EN 16897:2017 Workplace exposure - Characterization of ultrafine aerosols/nanoaerosols - Determination of number concentration using condensation particle counters (Endorsed by Asociación Española de Normalización in October of 2017.)
UNE-EN 16966:2022 Workplace exposure - Measurement of exposure by inhalation of nano-objects and their aggregates and agglomerates - Metrics to be used such as number concentration, surface area concentration and mass concentration

Danish Standards Foundation, number concentration

DS/EN ISO 28439:2011 Workplace atmospheres - Characterization of ultrafine aerosols/nanoaerosols - Determination of the size distribution and number concentration using differential electrical mobility analysing systems

AENOR, number concentration

UNE-EN ISO 28439:2011 Workplace atmospheres - Characterization of ultrafine aerosols/nanoaerosols - Determination of the size distribution and number concentration using differential electrical mobility analysing systems (ISO 28439:2011)

RU-GOST R, number concentration

GOST R ISO 28439-2015 Workplace atmospheres. Characterization of ultrafine aerosols/nanoaerosols. Determination of the size distribution and number concentration using differential electrical mobility analysing systems