This standard specifies the terms and definitions, classification, grading, marking, technical requirements, testing method, product instructions and packaging of PM2.5 protective mask.
This standard is applicable to masks that are worn by the public in daily life to avoid taking in PM2.5 in the air.
This standard is not applicable to masks to protect against intake of harmful gases and steam, or dust masks used in oxygen-deficient environment, for escape, firefighting, medical purposes or other vocations.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GBZ l-2010 Hygienic Standards for the Design of Industrial Enterprises
GB/T 2912.1 Textiles - Determination of Formaldehyde - Part 1: Free and Hydrolized Formaldehyde (Water Extraction Method)
GB 3095-2012 Ambient Air Quality Standard
GB/T 5703 Basic Human Body Measurements for Technological Design
GB/T 7573 Textiles - Determination of pH of Aqueous Extract
GB 15979 Hygienic Standard for Disposable Sanitary Products
GB/T 17592 Textiles - Determination of the Banned Azo Colourants
GB/T 18664-2002 Selection, Use and Maintenance of Respiratory Protective Equipment
GB/T 23344 Textiles - Determination of 4-Aminoazobenzene
HJ 633-2012 Technical Regulation on Ambient Air Quality Index (on trial)
HJ 653-2013 Specifications and Test Procedures for Ambient Air Quality Continuous Automated Monitoring System for PM10 and PM2.5
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
mist
tiny droplet suspending in the air
[Definition 3.1.18, GB/T 18664-2002]
3.2
haze
a kind of meteorological phenomena formed by the fume dust suspending in the air
Foreword i 1 Scope 2 Normative References 3 Terms and Definitions 4 Classification, Grading and Marking 5 Technical Requirements 6 Testing Method 7 Product Instruction and Packaging Annex A (Informative) Directions on Selection and Application Annex B (Informative) Major Dimensions of Test Head Models
