RS1050 1050 gm/m2 rubber coating RS1500 1500 gm/m2 rubber coating
Chemical Permeation and Biological Penetration Tests for DUI RS1050 and RS1500 Vulcanized Rubber Drysuit Materials
Diving in contaminated or potentially contaminated environments is a necessity for commercial, police, fire, rescue or military divers. These environments may contain chemical and/or biological risk factors. To assist the diving supervisor in planning such dives, the following testing was done on DUI’s RS1050 and RS1500 suits by Texas Research Institute (TRI). These results are only intended as a guide and are to be used as such to determine the suitability of a suit for each anticipated exposure.
The tests were done on new suit material. Aging, abrasion, cuts, or previous exposures to hazards may deteriorate the performance of the suits material.
The suit should be used in conjunction with a suitable glove and ring system to protect the hands. To protect the head, a helmet yoke with helmet system should be used or an attached dry hood with a full facemask in lower risk environments.
The Chemical Testing was performed as follows:
Tests were carried out ACROSS THE SEAM, as this is potentially the weak link in any suit. It has been the experience of the TRI that seams in all types of martial (not just dive suits) often exhibits flaws during chemical permeation testing.
The Bacteriophage Test was carried out as fellows:
ASTM
|
EN369
|
Average Normalized
Breakthrough Time
(Min)
0.1 µg/cm2*min
|
Average Normalized
Breakthrough Time
(Min)
0.1 µg/cm2*min
|
|||||
% Con | % Max Water Solubility | DUI RS1050 | DUI RS1500 | DUI RS1050 | DUI RS1500 | |
Acetone | 10 | 100 | >480 | >480 | >480 | >480 |
Acetonltrile | 10 | 100 | >480 | >480 | >480 | >480 |
Ammonia Solution | 10 | 100 | >480 | >480 | >480 | >480 |
Carbon Disulfide | 100 | 0.2 | <3 | 6 | <5 | 10 |
Clichloromethane | 100 | 1.3 | 9 | 17 | 12 | 19 |
Diethylamine | 10 | 82 | >480 | >480 | >480 | >480 |
Dimethylformamide | 10 | 100 | >480 | >480 | >480 | >460 |
Ethyl Acetate | 8.7 | 8.7 | 172 | 251 | 369 | >480 |
Hexane | 0.014 | 0.014 | 412 | 420 | >480 | >480 |
Methanol | 10 | 100 | >480 | >480 | >480 | >480 |
Sodium Hydroxide | 10 | 50 | >480 | >480 | >480 | >480 |
Sulfuric Acid | 10 | 100 | >480 | >480 | >480 | >480 |
Tetrachloroethylene | 0.015 | 0.015 | 102 | 48 | 197 | 59 |
Tetrahydrofuran | 10 | 100 | 231 | 179 | 446 | 344 |
Toluene | 0.05 | 0.05 | 371 | 129 | >480 | 338 |
ASTM Oil No.1 | 100 | Not Sol. | >480 | >480 | >480 | >480 |
ASTM Oil No-3 | 100 | Not Sol. | >480 | >480 | >480 | >400 |
Liquid B 70% lsooctane | ||||||
30% Toluene | 100 | Not Sol. | 53 | 56 | 65 | 71 |
Liquid C 50% lsooctane | ||||||
50% Toluene | 100 | Not Sol. | 26 | 45 | 31 | 52 |
Liquid F 80% Paraffin oil | ||||||
20% Methylnaphthalene | 100 | Not Sol. | >480 | >480 | >480 | >480 |
JPB Jet Fuel | 100 | Not Sol. | 195 | 285 | 360 | >480 |
This data was derived from testing in accordance with ASTM Standard F739-96 and ENN369. These tests were performed under laboratory conditions. DUI neither warrants or guarantees protection provided by the use of this material against the tested chemical. The user should determine the applicability of test conditions when assessing the suitability of material for actual anticipated exposure.
CHIEMICAL PERMEATION TEST RESULTS (MATERIAL)
ASTM
|
Average Normalized
Breakthrough Time (Min)
0.1 µg/cm2*min
|
||||
Chemical | % Conc. | % Max Water Solubility | DUI RS1050 | DUI RS1500 |
Carbon Disulfide | 100 | 0.2 | 7 | 7 |
Dichloromethane | 100 | 1.3 | 9 | 12 |
Ethyl Acetate | 8.7 | 8.7 | 52 | 116 |
Tetrachloroethylene | 0.015 | 0.015 | >260 | >480 |
Tetrahydrofuran | 10 | 100 | 112 | 137 |
Toluene | 0.05 | 0.05 | >180 | 189 |
Liquid C 50% lsooctane | ||||
50% Toluene | 100 | Not. Sol. | 21 | 29 |
JP8 Jet Fuel | 100 | Not. Sol. | 95 | 101 |
EN369
|
Average Normalized
Breakthrough Time (Min)
0.1 µg/cm2*min
|
||||
Chemical | % Conc. | % Max Water Solubility | DUI RS1050 | DUI RS1500 |
Carbon Disulfide | 100 | 0.2 | 7 | 9 |
Dichloromethane | 100 | 1.3 | 9 | 15 |
Ethyl Acetate | 8.7 | 8.7 | 52 | 234 |
Tetrachloroethylene | 0.015 | 0.015 | >260 | >480 |
Tetrahydrofuran | 10 | 100 | 112 | 206 |
Toluene | 0.05 | 0.05 | >180 | >480 |
Liquid C 50% lsooctane | ||||
50% Toluene | 100 | Not. Sol | 21 | 32 |
JP8 Jet Fuel | 100 | Not. Sol | 95 | 128 |
This date was derived from testing in accordance with ASTM Standard F739-96 and EN389. These tests were performed under laboratory conditions. DUI neither warrants nor guarantees protection provided by the use of this material against the tested chemical. The user should determine the applicability of test conditions when assessing the suitability of material for actual anticipated exposure.
BACTERIOPMAGE TEST ASTM F1671 (MATERIAL SEAMS)The viral penetration test method ASTM 1671 is used to assess the effectiveness of materials used in protective clothing for protecting the wearer against contact with blood-borne pathogens using a surrogate microbe suspended in a body fluid simulated under conditions of continuous liquid contact. Protective clothing material pass/fail determinations are based upon detection of viral penetration.
Exposure to biological fluids containing viruses which cause HEPATITIS 8 (HBV), HEPATITIS C (HBC), and ACQUIRED IMMUNE DEFICIENCY SYSDROME (HIV) can pose significant risks to health and life. This test method has been specifically defined for modeling viral penetration by these three viruses transmitted in blood and other potentially infectious body fluids.
The material is challenged for a specified time and pressure sequence with a nutrient broth containing Phi-Xl74 bacteriophage which is not pathogenic to humans, but which does infect bacteria. After the challenge time is complete the inside surface of the material is washed with sterile nutrient broth to collect any bacteriophage which may have penetrated the material barrier. The solution is then assayed using E-coil C bacteria in agar media to determine the presence of bacteriophage. This is indicated by the formation of plaques (measured in plaque forming units (PFUs) in the bacterial lawn of agar media. Plaques are the visible clear areas in the E-coil C bacterial lawn where the bacteria have been destroyed by bacteriophage injection and cell breakup. ANY EVIDENCE OF VIRAL PENETRATION FOR TEST SPECIMEN CONSTITUTES FAILURE.
BLOGICAL PENETRATION TEST RESULTS |
Cell | Collection Side Assay (PFU/ML) | DUI RS1050 | DUI RS1500 | Results |
Blank | <1 | < | < | Pass |
1 | <1 | < | < | Pass |
2 | <1 | < | < | Pass |
3 | <1 | < | < | Pass |
These tests were performed under laboratory conditions. DUI neither warrants nor guarantees protection by this material and assumes no liability for the use of this material with the biological agent. The user should determine the applicability of test conditions when assessing suitability of the material for actual anticipated exposure.
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