NIOSH 42CFR-84过滤效率,呼吸阻力测试要求
1、zui高可允許粉塵穿透值 Maximum Penetration:
產品規格 Filters 吸氣流量在 Inhalation Flow
at 85+/-2 LPM
使用測試煙霧
Test Aerosol
N95 安規:5% 鹽霧NACL 2% Sodium Chloride
P95 安規:5% DOP R95 安規:5% DOP
1-this standard fits to mask with or without valve.
2-refer to 42 CFR PART 84 (84.180 OF PAGE 30382)
3-P test must keep on till the dust reach to 200+/-5mg, thefiltration efficiency is still within the standard.
5-refer to 42 CFR PART 84 (84.180,84.181 OF PAGE30382,30382)
2、測試可允許流量阻抗壓差(DELTA P)Initial Maximum Flow Resistance :
產品規格 Filters 吸氣阻抗(流量在85+/-2 LPM)
Inhalation Resistance 呼氣阻抗(流量在85+/-2 LPM) ExhalationResistance
N95 安規:35mmH2O 以下MAX. 安規:25mmH2O以下MAX.
P95 安規:35mmH2O 以下MAX. 安規:25mmH2O以下MAX.
R95 安規:35mmH2O以下MAX. 安規:25mmH2O以下MAX.
1.this standard fits to mask with or without valve.
2.Refer to 42 CFR PART 84 (84.180 OF PAGE 30381,30382)
3 1 mmH2O=10 PA=0.1 MBAR