GB/T 6167-2026 Test methods for the performance of airborne particle counter English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 6167-2026
Test methods for the performance of airborne particle counter
尘埃粒子计数器性能试验方法
Issue date: 2026-01-28 Implementation date: 2027-02-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Requirements
5 Test Methods
Annex A (Informative) Principle, composition and typical application scenarios of airborne particle counters
Annex B (Normative) Storage of standard particles and preparation of their dilution fluids
Annex C (Normative) Requirements for the test apparatus for particle counter performance
Annex D (Informative) Comparative method test
Bibliography
Test method for performance of airborne particle counter
1 Scope
This document specifies the requirements for airborne particle counters and describes the corresponding test methods.
This document is applicable to the performance testing and verification of airborne particle counters.
2 Normative References
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB 17323-1998, Bottled purified water for drinking
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
airborne particle counter
instrument for measuring the size and number of particles suspended in air or other gases, based on the principle of single-particle light scattering
NOTE 1: The particle size measured by this type of instrument is the optical equivalent diameter of the suspended particles. The typical particle size measurement range is 0.1 μm to 10.0 μm. It is mainly used for cleanliness testing of clean rooms and associated controlled environments, performance testing of air filters and filter media, and measurement of particle number concentration and particle size distribution in other ambient air. For its basic information, see Annex A.
NOTE 2: Hereinafter referred to as "particle counter".
3.2
standard particle
spherical monodisperse particles with known particle size and refractive index, and uniform particle size, used for performance testing of particle counters, whose mean particle size is traceable to the international length standard, with a geometric standard deviation of less than 1.15
3.3
test aerosol
aerosol used for testing the performance of particle counters, which is a gaseous dispersion system formed by standard particles dispersed in clean air
3.4
pulse height analyzer; PHA
instrument for analyzing the distribution of electrical pulse heights
3.5
particle size channel
particle size channel displayed by the particle counter
3.6
particle size resolving power
capability of a particle counter to distinguish particles of different sizes
3.7
error of particle concentration distribution versus size
measurement error of a particle counter when measuring the percentage of particles of different sizes in an aerosol
3.8
counting efficiency
ratio of the particle number concentration measured by the particle counter to the particle number concentration measured by the reference instrument for the same test aerosol
3.9
false count
particle count value still measured by the particle counter when the air sample to be tested contains no particles within the instrument's measurement range
3.10
counting response rate
capability of a particle counter to accurately reflect changes in the sampled count concentration when switching between different count concentration levels
3.11
upper limit of particle number concentration
maximum particle number concentration that a particle counter can accurately measure
3.12
coincidence loss
error in particle number concentration of a particle counter caused by multiple particles simultaneously passing through the sensing zone and/or due to circuit resolution time limitations, resulting in the particle counter misinterpreting the combined signal of multiple particles as a single particle
4 Requirements
4.1 Sampling time
The timing error of a particle counter during continuous sampling for 5 min shall not exceed ±1 s.
4.2 Sampling flow rate
The relative error of the sampling flow rate of a particle counter shall not exceed ±5 %.
4.3 Particle size parameters
4.3.1 Particle size setting error
The particle size setting error of a particle counter shall not exceed ±10 %.
4.3.2 Particle size resolving power
The particle size resolving power of a particle counter shall not exceed 15 %.
4.3.3 Error of particle concentration distribution versus size
When using 0.4 μm standard particles, the error of particle concentration distribution versus size of a particle counter shall not exceed 15 %; when using 0.6 μm standard particles, the error of particle concentration distribution versus size of a particle counter shall not exceed -30 %.
4.4 Counting efficiency
When using standard particles corresponding to the minimum particle size channel, the counting efficiency of a particle counter shall be (50 ± 20) %; when using standard particles corresponding to 1.5 to 2 times the minimum particle size channel, the counting efficiency of a particle counter shall be (100 ± 10) %.
4.5 False count
When a particle counter continuously samples air containing no particles within the instrument's measurement range, considering the upper limit value under the 95 % confidence probability of the Poisson distribution, the result shall not exceed 1 particle/5 min.
4.6 Counting response rate
When switching from sampling high particle number concentration gas to clean gas, the counting response rate of a particle counter shall not exceed 0.5 %.
4.7 Upper limit of particle number concentration
The upper limit of particle number concentration of a particle counter shall not be less than 90 % of the nominal value.
Standard
GB/T 6167-2026 Test methods for the performance of airborne particle counter (English)
Standard No.
GB/T 6167-2026
Status
to be valid
Language
English
File Format
PDF
Word Count
10000 words
Translation Price(USD)
300.0
Implemented on
2026-12-1
Delivery
via email in 1~5 business day
Detail of GB/T 6167-2026
Standard No.
GB/T 6167-2026
English Name
Test methods for the performance of airborne particle counter
GB/T 6167-2026 Test methods for the performance of airborne particle counter English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 6167-2026
Test methods for the performance of airborne particle counter
尘埃粒子计数器性能试验方法
Issue date: 2026-01-28 Implementation date: 2027-02-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Requirements
5 Test Methods
Annex A (Informative) Principle, composition and typical application scenarios of airborne particle counters
Annex B (Normative) Storage of standard particles and preparation of their dilution fluids
Annex C (Normative) Requirements for the test apparatus for particle counter performance
Annex D (Informative) Comparative method test
Bibliography
Test method for performance of airborne particle counter
1 Scope
This document specifies the requirements for airborne particle counters and describes the corresponding test methods.
This document is applicable to the performance testing and verification of airborne particle counters.
2 Normative References
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB 17323-1998, Bottled purified water for drinking
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
airborne particle counter
instrument for measuring the size and number of particles suspended in air or other gases, based on the principle of single-particle light scattering
NOTE 1: The particle size measured by this type of instrument is the optical equivalent diameter of the suspended particles. The typical particle size measurement range is 0.1 μm to 10.0 μm. It is mainly used for cleanliness testing of clean rooms and associated controlled environments, performance testing of air filters and filter media, and measurement of particle number concentration and particle size distribution in other ambient air. For its basic information, see Annex A.
NOTE 2: Hereinafter referred to as "particle counter".
3.2
standard particle
spherical monodisperse particles with known particle size and refractive index, and uniform particle size, used for performance testing of particle counters, whose mean particle size is traceable to the international length standard, with a geometric standard deviation of less than 1.15
3.3
test aerosol
aerosol used for testing the performance of particle counters, which is a gaseous dispersion system formed by standard particles dispersed in clean air
3.4
pulse height analyzer; PHA
instrument for analyzing the distribution of electrical pulse heights
3.5
particle size channel
particle size channel displayed by the particle counter
3.6
particle size resolving power
capability of a particle counter to distinguish particles of different sizes
3.7
error of particle concentration distribution versus size
measurement error of a particle counter when measuring the percentage of particles of different sizes in an aerosol
3.8
counting efficiency
ratio of the particle number concentration measured by the particle counter to the particle number concentration measured by the reference instrument for the same test aerosol
3.9
false count
particle count value still measured by the particle counter when the air sample to be tested contains no particles within the instrument's measurement range
3.10
counting response rate
capability of a particle counter to accurately reflect changes in the sampled count concentration when switching between different count concentration levels
3.11
upper limit of particle number concentration
maximum particle number concentration that a particle counter can accurately measure
3.12
coincidence loss
error in particle number concentration of a particle counter caused by multiple particles simultaneously passing through the sensing zone and/or due to circuit resolution time limitations, resulting in the particle counter misinterpreting the combined signal of multiple particles as a single particle
4 Requirements
4.1 Sampling time
The timing error of a particle counter during continuous sampling for 5 min shall not exceed ±1 s.
4.2 Sampling flow rate
The relative error of the sampling flow rate of a particle counter shall not exceed ±5 %.
4.3 Particle size parameters
4.3.1 Particle size setting error
The particle size setting error of a particle counter shall not exceed ±10 %.
4.3.2 Particle size resolving power
The particle size resolving power of a particle counter shall not exceed 15 %.
4.3.3 Error of particle concentration distribution versus size
When using 0.4 μm standard particles, the error of particle concentration distribution versus size of a particle counter shall not exceed 15 %; when using 0.6 μm standard particles, the error of particle concentration distribution versus size of a particle counter shall not exceed -30 %.
4.4 Counting efficiency
When using standard particles corresponding to the minimum particle size channel, the counting efficiency of a particle counter shall be (50 ± 20) %; when using standard particles corresponding to 1.5 to 2 times the minimum particle size channel, the counting efficiency of a particle counter shall be (100 ± 10) %.
4.5 False count
When a particle counter continuously samples air containing no particles within the instrument's measurement range, considering the upper limit value under the 95 % confidence probability of the Poisson distribution, the result shall not exceed 1 particle/5 min.
4.6 Counting response rate
When switching from sampling high particle number concentration gas to clean gas, the counting response rate of a particle counter shall not exceed 0.5 %.
4.7 Upper limit of particle number concentration
The upper limit of particle number concentration of a particle counter shall not be less than 90 % of the nominal value.
