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GBZ/T 276-2016 (GBZ/T276-2016)

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GBZ/T 276-2016: PDF in English (GBZT 276-2016)
GBZ/T 276-2016
NATIONAL OCCUPATIONAL HEALTH STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 13.100
C 52
Fit Test Panels for Self-inhalation Air-purifying
Respiratory Protective Equipment
ISSUED ON: NOVEMBER 4, 2016
IMPLEMENTED ON: MAY 1, 2017
Issued by: National Health and Family Planning Commission of the
People’s Republic of China
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative References ... 4 
3 Terms and Definitions ... 4 
4 Binary Fit Test Panel for Adults ... 5 
Appendix A (normative) A Statement of Correct Application of This Standard . 7 
Fit Test Panels for Self-inhalation Air-purifying
Respiratory Protective Equipment
1 Scope
This Standard stipulates the fit test panels for the design and inspection of self-
inhalation air-purifying respiratory protective equipment.
This Standard is applicable to the design, selection and inspection of self-inhalation
air-purifying respiratory protective equipment.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 5703 Basic Human Body Measurements for Technological Design
GB/T 18664-2002 Selection, Use and Maintenance of Respiratory Protective
Equipment
3 Terms and Definitions
The following terms and definitions are applicable to this document.
3.1 Self-inhalation Air-purifying Respiratory Protective Equipment
Self-inhalation air-purifying respiratory protective equipment refers to air-purifying
respiratory protective article that overcomes resistance of components through the
wearer’s respiration.
3.2 Bizygomatic Breadth
Bizygomatic breadth refers to the straight-line distance between the left and the right
zygomatic points.
3.3 Face Length / Nasion-menton
Face length / nasion-menton refers to the distance between the nasion and the chin
point.
3.4 Fit Test
Fit test refers to the method for testing the suitability of a certain type of sealing
respiratory protective equipment for specific users.
3.5 Face-seal Check
Face-seal check refers to a method of tightness inspection performed by the user of
respiratory protective equipment to ensure that sealing face mask is worn in the correct
position.
4 Binary Fit Test Panel for Adults
4.1 Principle of Fit Test Panel
The indicators of fit test panel are face length / nasion-menton and bizygomatic breadth.
The measurement of face length / nasion-menton and bizygomatic breadth is shown
in GB/T 5703. In accordance with the two indicators: face length / nasion-menton and
bizygomatic breadth of adults, divide them into 10 facial types, number them by #1 ~
#10. The coverage of the fit test panel is above 95%, and the coverage of the various
facial types is larger than 2%.
4.2 Range of Facial Types
In terms of head-face binary fit test panel, the range of bizygomatic breadth is 127.5
mm ~ 158.5 mm; the range of face length / nasion-menton is 96.5 mm ~ 132.5 mm.
4.3 Method of Fit Test Panel
Binary fit test panel for adults complies with the actually measured face length / nasion-
menton and bizygomatic breadth. See Figure 1 for facial types.
4.4 Application of Fit Test Panel
When performing fitness test of self-inhalation air-purifying respiratory protective
equipment, select testers that meet the various facial types in the sub-column of Figure
1. Please refer to Appendix A for the method of application. Individuals may base on
the facial types to select a corresponding model of self-inhalation air-purifying
respiratory protective equipment. Before use, the wear tightness inspection shall be
performed, then, the fitness test shall be conducted, so as to guarantee the effect of
self-inhalation air-purifying respiratory protective equipment.
......
 
(Above excerpt was released on 2020-04-11, modified on 2021-06-07, translated/reviewed by: Wayne Zheng et al.)
Source: https://www.chinesestandard.net/PDF.aspx/GBZT276-2016