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DATE: October 25, 1995
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TEST METHOD: ASTM D-1308:
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Standard Test Method for Effect of Household Chemicals on Clear and Pigmented Finishes.
(Chemical soak test modified for evaluation with various concentrations of hydrogen peroxide
immersion solutions. See Appendix for specific test procedure. Solutions were changed regularly
to maintain concentration of H2O2.)
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COATING SYSTEM:
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Plant applied PROTECTO 401 CERAMIC EPOXY internally lined ductile iron
pipe (DIP) cut into 3 inch x 4 inch coupons.
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TEST DURATION and CONDITIONS:
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1080 hours (45 days), Room temperature, panels submerged 50% to provide liquid and
vapor phase testing.
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Coupons, cut from mill applied epoxy coated pipe, were subjected to specific 1080 hour (45 day), room temperature partial submersion in a series of
concentrations of hydrogen peroxide H2O2).
The results are tabulated below.
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CHEMICAL SYSTEM
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RESULTS
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1 % H2O2
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135/136
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Pass:
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Coating unaffected, no undercutting or loss of adhesion; Some corrosion to back of coupon and from un
protected hole drilled in top of coupon.
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5% H2O2
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126/131
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Pass:
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Coating unaffected, no undercutting or loss of adhesion; Some corrosion to back of coupon and from
unprotected hole drilled in top of coupon.
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10% H2O2
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123/125
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Pass:
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Coating unaffected; Some corrosion to back of coupon and from un-protected hole drilled in top of coupon.
Corrosion to metal at un-protected areas of coupon.
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25% H2O2
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121/122
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Pass:
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Coating unaffected; Some corrosion to back of coupon from un-protected hole drilled in top of coupon.
Corrosion to metal at un-protected areas of coupon.
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50% H2O2
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119/120
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Pass:
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Coating unaffected; Some corrosion to back of coupon and from un-protected hole drilled in top of coupon.
Corrosion to metal at un-protected areas of coupon.
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CERTIFIED
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_________________
Dr. George Mills
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Date: 24 October 1995
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