SIST ISO 4226:2013 PDF

Air quality - General aspects - Units of measurement

Title (English):

SIST ISO 4226:2013

Air quality - General aspects - Units of measurement

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 7
Publication date:: March 18, 2013
ICS:: 01.060
Technical committee:: KAZ - Air quality

Document language:

enru

Delivery time:1–7 days

Price:44 €

Description (English):

ISO 4226:2008 lays down the units to be used when reporting results of air quality measurements.

Technical details

SKU: SIST ISO 4226:2013

Abstract

Overview

SIST ISO 4226:2013 is an international standard published by the International Organization for Standardization (ISO) that specifies the units of measurement for air quality reporting. This third edition replaces earlier versions and provides standardized units to ensure consistency and comparability of air quality measurement results worldwide. The standard is essential for professionals involved in environmental monitoring, air pollution assessment, and related scientific research.

By establishing a harmonized set of units, SIST ISO 4226:2013 supports accurate communication and data exchange across borders and disciplines, enabling reliable comparison of air quality data between countries and agencies.

Key Topics

Standardized Units for Air Quality Data SIST ISO 4226:2013 specifies precise units for reporting various air quality parameters including gas concentrations, particle measurements, and meteorological data.
Units for Gases and Vapours
- Volume or mass fraction: Percent (%)
- Volume fraction of gaseous pollutants: Cubic centimetre per cubic metre (cm³/m³), cubic millimetre per cubic metre (mm³/m³)
- Molar fractions: Millimole per mole (mmol/mol), micromole per mole (µmol/mol), nanomole per mole (nmol/mol)
- Mass concentration: Milligram per cubic metre (mg/m³), microgram per cubic metre (µg/m³), nanogram per cubic metre (ng/m³), picogram per cubic metre (pg/m³)
- Diffusion coefficients: Centimetre squared per second (cm²/s), centimetre squared per minute (cm²/min)
Units for Particulate Matter
- Mass concentration: mg/m³, µg/m³, ng/m³, pg/m³
- Particle size: Micrometre (µm), nanometre (nm)
- Atmospheric dustfall: Gram per square metre per day (g/(m²·d)), milligram per square metre per day (mg/(m²·d))
- Deposition rate and velocity: µg/(m²·s), cm/s
- Number concentration of biological or other particles: Reciprocal cubic metre (m⁻³), reciprocal cubic decimetre (dm⁻³)
Specifications for Gas State
- Temperature: Kelvin (K), degree Celsius (°C)
- Pressure: Pascal (Pa), kilopascal (kPa)
- Relative humidity: Percent (%)
Meteorological Parameters
- Wind speed: Metre per second (m/s)
- Wind direction: Degrees (°)
- Precipitation intensity: Millimetre per day (mm/d), millimetre per hour (mm/h)
- Irradiance: Watt per square metre (W/m²)
- Atmospheric pressure: Hectopascal (hPa), kilopascal (kPa)
- Absolute humidity and mixing ratio: Gram per cubic metre (g/m³), gram per kilogram (g/kg)
- Visibility: Kilometre (km)
Time and Location Units
- Time: Second (s), minute (min), hour (h), day (d)
- Geographic coordinates: Degree (°), minute ('), second (")
- Universal Transverse Mercator (UTM) coordinates: Metre (m)
- Altitude: Metre (m)
Guidance Notes
- Usage of abbreviations such as ppm or ppb is discouraged.
- Concentrations expressed on a mass/volume basis require specification of ambient temperature, pressure, and humidity.
- Wind direction is reported as degrees clockwise from true north.

Applications

Environmental Monitoring Agencies SIST ISO 4226:2013 enables standardized reporting of air pollutants, ensuring data quality for regulatory compliance and public health studies.
Scientific Research Researchers use the standard units for consistency in air quality experiments, facilitating reliable comparison and replication of results.
Industrial Emission Monitoring Industries monitoring emissions can adopt ISO 4226 to report pollutant concentrations in legally accepted units.
Air Quality Modeling and Forecasting Uniform units improve the integration and validation of air quality models supporting policy making and urban planning.
International Data Exchange Facilitates harmonization and comparison of air quality information in cross-border environmental studies and agreements.

Related Standards

ISO 1000 - Provides general guidance on the International System of Units (SI), complementing ISO 4226 by specifying unit multiples and recommendations.
ISO 31-0 - Establishes general principles for quantities and units, important for understanding the foundation of ISO 4226’s unit system.
ISO/TC 146 Subcommittee SC 4 - The technical committee responsible for air quality standards development including measurement methods and reporting.

Adhering to SIST ISO 4226:2013 ensures clarity, consistency, and precision in air quality measurement reporting, supporting effective environmental management and scientific research worldwide. For more information and access to the full document, visit ISO official website.

Related standards

Mentioned in the description and other SIST standards

Abstract

Overview

Key Topics

Standardized Units for Air Quality Data SIST ISO 4226:2013 specifies precise units for reporting various air quality parameters including gas concentrations, particle measurements, and meteorological data.
Units for Gases and Vapours
- Volume or mass fraction: Percent (%)
- Volume fraction of gaseous pollutants: Cubic centimetre per cubic metre (cm³/m³), cubic millimetre per cubic metre (mm³/m³)
- Molar fractions: Millimole per mole (mmol/mol), micromole per mole (µmol/mol), nanomole per mole (nmol/mol)
- Mass concentration: Milligram per cubic metre (mg/m³), microgram per cubic metre (µg/m³), nanogram per cubic metre (ng/m³), picogram per cubic metre (pg/m³)
- Diffusion coefficients: Centimetre squared per second (cm²/s), centimetre squared per minute (cm²/min)
Units for Particulate Matter
- Mass concentration: mg/m³, µg/m³, ng/m³, pg/m³
- Particle size: Micrometre (µm), nanometre (nm)
- Atmospheric dustfall: Gram per square metre per day (g/(m²·d)), milligram per square metre per day (mg/(m²·d))
- Deposition rate and velocity: µg/(m²·s), cm/s
- Number concentration of biological or other particles: Reciprocal cubic metre (m⁻³), reciprocal cubic decimetre (dm⁻³)
Specifications for Gas State
- Temperature: Kelvin (K), degree Celsius (°C)
- Pressure: Pascal (Pa), kilopascal (kPa)
- Relative humidity: Percent (%)
Meteorological Parameters
- Wind speed: Metre per second (m/s)
- Wind direction: Degrees (°)
- Precipitation intensity: Millimetre per day (mm/d), millimetre per hour (mm/h)
- Irradiance: Watt per square metre (W/m²)
- Atmospheric pressure: Hectopascal (hPa), kilopascal (kPa)
- Absolute humidity and mixing ratio: Gram per cubic metre (g/m³), gram per kilogram (g/kg)
- Visibility: Kilometre (km)
Time and Location Units
- Time: Second (s), minute (min), hour (h), day (d)
- Geographic coordinates: Degree (°), minute ('), second (")
- Universal Transverse Mercator (UTM) coordinates: Metre (m)
- Altitude: Metre (m)
Guidance Notes
- Usage of abbreviations such as ppm or ppb is discouraged.
- Concentrations expressed on a mass/volume basis require specification of ambient temperature, pressure, and humidity.
- Wind direction is reported as degrees clockwise from true north.

Applications

Environmental Monitoring Agencies SIST ISO 4226:2013 enables standardized reporting of air pollutants, ensuring data quality for regulatory compliance and public health studies.
Scientific Research Researchers use the standard units for consistency in air quality experiments, facilitating reliable comparison and replication of results.
Industrial Emission Monitoring Industries monitoring emissions can adopt ISO 4226 to report pollutant concentrations in legally accepted units.
Air Quality Modeling and Forecasting Uniform units improve the integration and validation of air quality models supporting policy making and urban planning.
International Data Exchange Facilitates harmonization and comparison of air quality information in cross-border environmental studies and agreements.

Related Standards

ISO 1000 - Provides general guidance on the International System of Units (SI), complementing ISO 4226 by specifying unit multiples and recommendations.
ISO 31-0 - Establishes general principles for quantities and units, important for understanding the foundation of ISO 4226’s unit system.
ISO/TC 146 Subcommittee SC 4 - The technical committee responsible for air quality standards development including measurement methods and reporting.

SIST ISO 4226:2013 PDF

Technical details

Abstract

Overview

Key Topics

Applications

Related Standards

Related standards

Abstract

Overview

Key Topics

Applications

Related Standards

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