ANSI / AAMI PB 70:12 classification of barrier performance of surgical gowns,
other protective apparel, surgical drapes and drape accessories.
Level1 |
Test |
Liquid Challenge |
Result |
Expect Barrier Effectiveness |
1 |
AATCC 42 Impact Penetration2 |
Water |
≤ 4.5 g |
Minimal water resistance (some resistance to water spray) |
2 |
AATCC 42 Impact Penetration |
Water |
< 1.0 g |
Low water resistance (resistant to water spray and some resistance to water penetration under constant contact with increasing pressure) |
AATCC 127 Hydrostatic Pressure3 |
Water |
≥ 20 cm |
3 |
AATCC 42 Impact Penetration |
Water |
< 1.0 g |
Moderate water resistance (resistant to water spray and some resistance to water penetration under constant contact with increasing pressure) |
AATCC 127 Hydrostatic Pressure |
Water |
≥ 50 cm |
4 |
ASTM F1670 Synthetic Blood Penetration Test (for surgical drapes) |
Surrogate Blood |
No penetration at 2 psi (13.8 kPa) |
Blood and viral penetration resistance (2 psi) |
ASTM F1671 Viral Penetration Test (for surgical and isolation gowns) |
Bacteriophage Phi-X174 |
No penetration at 2 psi (13.8 kPa) |
1 In order of increasing protection.
2 American Association of Textile Chemists and Colorists (AATCC) 42 Water resistance: Impact penetration test determines the ability of a material to resist water penetration under spray impact [AATCC 2000].
3 AATCC 127 Water resistance: hydrostatic pressure test determines the ability of a material to resist water penetration under constant contact with increasing pressure [AATCC 1998]
Item # JAB-LGDG-IML