CHEMICAL PERMEATION / PENETRATION TESTING ASTM F1001 Recommended List of Chemicals Fpr Evaluating Protective Clothing Materials (ASTM F739) Chemical Penetration Testing (ASTM P903)
Challenge Chemical
Average Normalized Breakthrough Time (minutes)
Average Permeation Rate (ug/cm2/minute)
Penetration Results
Acetone
8
0.62
PASS
Acetonitrile
<4
8.7
PASS
Ammonia
4
4.5
N/T
1,3-Butadiene
8
11.9
N/T
Carbon Disulfide
<4
<50
PASS
Chlorine Gas
6
2.3
N/T
Dichloromethane
4
0.59
PASS
Diethylamine
4
9.5
PASS
N,N-Dimethylformamide
8
2.1
PASS
Ethyl Acetate
4
2.3
PASS
Ethylene Oxide
<4
359
N/T
n-Hexane
4
6.3
PASS
Hydrogen Chloride
30
>50
N/T
Methanol
<4
2.23
PASS
Methyl Chloride
4
0.38
N/T
Nitrobenzene
4
16
PASS
Sodium Hydroxide
ND
ND
PASS
Sulfuric Acid
ND
ND
PASS
Tetrachloroethylene
8
10
PASS
Tetrahydrofuran
<4
<50
PASS
Toluene
48
25
PASS
Breakthrough Time is taken between the first contact of the chemical with outer layer of the fabric and its direction on the inside. Permeation rate is the constant rate of permeation that occurs after chemical breakthrough occurs and all factors affecting the permeation have reached their equilibrium state.
COMPARATIVE COMPOSITE DATA SHEET
Property
Method
POSI-WEARTM
Tyvek® Grade 1422A
Weight (oz/yd2)
ASTM D-1910
1.71
1.15
Thickness (mils)
ASTM 1777*64
10
5
Tensile Strength (lbs.) MD
ASTM D-1682
34
17
Tensile Strength (lbs.) CD
Grab
19
18
Tensile Strength (lbs.in) MD
ASTM D-1682
10
7
Tensile Strength (lbs.in) CD
Strip
6
9
Trapezoid Tear
ASTM D-2263
>10
5
Trapezoid Tear (lbs.) CD
>7
6
Bond Strength (lbs.) MD
IST 110*2*82
Min. 1.0
Not Applicable
Bond Strength (lbs.) CD
Min. 1.0
Not Applicable
Hydrostatic Head (cms)
>100
<75
Moisture Vapor Trans.
ASTM F-1249
Not Applicable
LOW
Resistance to Penetration by Liquids (2 psi)
ASTM ES-21
PASS
Not Applicable
Posi-WearTM test data taken from POLY-BOND, INC. labs and independent test labs.
Posi-WearTM is manufactured from the material POLY-SAFE, which is manufactured by POLY-BOND, INC.
