The testing standard is YY/T 0969-20 13 Disposable Mask. The test items mainly include appearance, structure and size, nose clip, mask belt, bacterial filtration efficiency, ventilation resistance, microbial indicators, residue and biological evaluation. Among them, microbial indicators mainly detect the total number of colonies, coliforms, Pseudomonas aeruginosa, Staphylococcus aureus, soluble streptococci and fungi. Biological evaluation items include cells, skin irritation, delayed hypersensitivity, etc.
2, medical surgical mask detection
The testing standard is YY/T 0469-20 1 1 Using Surgical Masks, and the testing items include the requirements of air tightness, particle filtration efficiency, filter particle type, bacterial filtration efficiency and permeability.
3, medical protective mask testing
The testing standard is Technical Requirements for Protective Masks for Masks GB19083-2010; The test items include air tightness, particle filtration efficiency, filter particle type, bacterial filtration efficiency, air permeability, surface moisture resistance, flame retardancy and gas barrier, and no breathing valve is allowed.
4. Detection of common N95 masks
The testing standard is GB2626-2006 "Protective Articles Self-filtering Anti-particulate Respirator", such as flame retardancy, leakage rate, expiratory resistance, gas resistance, dead space and air tightness.
5, PM2.5 protective mask detection
The testing standards are T/CTCA/KOOC-0/-20/KOOC-0/5pm2.5 protective mask and Taj/KOOC-0/00/KOOC-0/-20/KOOC-0/5pm2.5 protective mask. The detection items mainly include apparent detection, formaldehyde, pH value, temperature and humidity pretreatment, ammonia dye that can decompose cancer, microbial indicators, filtration efficiency, total leakage rate, respiratory resistance, connecting force between mask belt and main body, dead space and so on.
6, knitted mask detection
The testing standard is FZ/T 73049-20 14 knitted mask. The test items mainly include appearance quality, internal quality, pH value, formaldehyde content, decomposable carcinogenic aromatic amine dye content, fiber content, soaping color fastness, water color fastness, saliva color fastness, rubbing color fastness, perspiration color fastness, air permeability and odor.
CW-HPC600A handheld laser dust particle counter is a high-sensitivity laser dust particle counter which integrates handheld and desktop printing. Its patented design not only leads the international similar products in sensitivity, resolution and stability of sensor technology. More unique multi-functional integrated design, meet and facilitate the needs of users. It can measure the quantity and distribution of particles in the environment in real time and accurately. Various measurement parameters can be set, such as automatic real-time display, granularity selection, timing, delay and automatic repeated measurement, time and date setting, data storage and printing, counting over-limit alarm lamp function, etc.