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GBZT276-2016 PDF English

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GBZT276-2016: Fit test panels for self-inhalation air-purifying respiratory protective equipment
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GBZ/T 300.61   GBZ/T 300.68   GBZ/T 276   GBZ/T 280   

GBZ/T 276-2016: Fit test panels for self-inhalation air-purifying respiratory protective equipment


---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBZT276-2016
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. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

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