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GB/T 31159-2014Terminology of atmospheric aerosol observation (English PDF)

大气气溶胶观测术语

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 3, 2014

Implementation date

January 1, 2015

Scope

GB/T 31159-2014 is the English-translated version of 大气气溶胶观测术语.

GB/T 31159-2014 is the Chinese standard "Terminology of atmospheric aerosol observation". Its scope clause reads: This standard defines the term atmospheric aerosol and its sampling, measurement and analysis and other aspects.

This standard applies to atmospheric research, business, education and other activities in the field of science, other fields may also be implemented by reference. Its clauses include basic concepts.

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Document preview — GB/T 31159-2014

National Standard of the People's Republic of China

ICS: 07.060
Classification: A 47

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Introduction
1 Scope
2 Basic Concepts
3 Category
4 3 Physical Characteristics
5 chemical constituents
6 Sampling
7 physical properties measurement
8 7 measure the chemical composition
References

1 Scope

This standard defines the term atmospheric aerosol and its sampling, measurement and analysis and other aspects.

This standard applies to atmospheric research, business, education and other activities in the field of science, other fields may also be implemented by reference.

2 Basic Concepts

2.1 Atmospheric aerosols

Liquid or solid particles dispersed in the atmosphere, forming a relatively stable suspension system.

2.2 Atmospheric aerosol particles

Atmospheric particulate matter particulatematter, PM Solid and liquid particles suspended in the atmosphere.

2.3 Particle size

Atmospheric aerosol particle size measurement.

Note. usually expressed in equivalent diameter or equivalent radius.

2.4 Size spectra

Particle size distribution particlesizedistribution

Characteristics (number, surface area, volume, mass, etc.) of atmospheric aerosol particles change with particle size.

2.5 Stokes diameter

And the characterization of particles having a diameter of the same density and gravitational fall velocity of spherical particles.

2.6 Aerodynamic diameter

The characterization of the particles have the same velocity, the density of the diameter of 1g/cm3 of spherical particles.

2.7 Volume equivalent diameter

dve

The characterization of the particles have a diameter of spherical particles of the same volume.

2.8 Surface area equivalent diameter

dse

The characterization of the particles have a diameter of spherical particles of the same surface area.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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