chemical spills and test results » scientific laboratory equipment testing

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DURATOP EPOXY COUNTERTOPS

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FUME HOODS

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Conceptual Lab Layout

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CHEMICAL and STAIN RESISTANCE TESTS

RESISTOP LABORATORY GRADE COUNTERTOPS

TEST PROCEDURES: In accordance with NEMA LD3-2000 test methodology, the following reagents were placed in contact with laboratory grade 1" (25.4mm) thick panel,under a 1" (25.4 mm) diameter watch glass for 24 hours in duration, at room temperature, prior to evaluation for effect. The effects of staining are color and pattern dependent. RESISTOP laboratory grade solid phenolic core panels also meet SEFA 8-1998 testing requirements.

Listed below is a summary of test results for the most commonly used chemical and staining agents.

CHEMICALS
TEST RESULT
ACETIC ACID 98%
NO EFFECT
AQUA REGIA
GOOD
CHROMIC ACID 60%
EXCELLENT
FORMIC ACID 90%
NO EFFECT
FORMIC ACID 98%
NOT TESTED
HYDROCHLORIC ACID 37%
FAIR
HYDROFLUORIC ACID 48%
FAIR
NITRIC ACID 30%
GOOD
NITRIC ACID 65%
POOR
PHOSPHORIC ACID 85%
NO EFFECT
SULFURIC ACID 77%
EXCELENT
SULFURIC ACID 97%
FAIR
CAUSTIC SODA 20%
NOT TESTED
SILVER NITRATE 10%
EXCELLENT
POTASSIUM IODIDE 10%
NOT TESTED
HYDROGEN PEROXIDE 30%
NO EFFECT
POTASSIUM PERMANGANATE 10%
NOT TESTED
SODIUM HYDROXIDE - SATURATED
NO EFFECT
IODINE (TINCTURE OF)
NO EFFECT
SULFURIC ACID 77% + NITRIC 70%
EXCELLENT

SOLVENTS
TEST RESULTS
ACETONE
NO EFFECT
ETHANOL
NO EFFECT
TOLUENE
NO EFFECT
TRICHLOROETHYLENE
NO EFFECT

RATING SCALE / KEY:

NO EFFECT: NO DETECTABLE STAIN, LOSS OF GLOSS OR CHANGE IN WORK SURFACE MATERIAL.
EXCELLENT: SLIGHT STAIN OR LOSS OF GLOSS, BUT NO CHANGE IN FUNCTION OR SMOOTHNESS OF THE SURFACE MATERIAL.
GOOD: A CLEARLY DISCERNIBLE STAIN OR LOSS OF GLOSS, BUT NO CHANGE TO THE FUNCTION OR SMOOTHNESS OF THE SURFACE MATERIAL.
FAIR: UNACCEPTABLE STAINING OR DISCERNIBLE DETERIORATION OR ETCHING OF THE SURFACE MATERIAL.
POOR: SEVERE STAIN OR MODERATE DETERIORATION, PITTING, CRATERING OR ETCHING OF THE SURFACE MATERIAL.

CARE AND MAINTENANCE: A regular schedule of maintenance is the most effective means of prolonging the surface life of lab grade work surfaces. Chemical spills should be cleaned immediately to prevent or greatly reduce the effects caused by long exposure of chemicals left on the work surfaces. Resistop surfaces should be cleaned with warm water, non-detergent soap, and/or with liquid glass polish. Rinse with clean water and wipe dry with a clean cloth. The use of steel wool and any abrasive cleaners should be avoided. We reserve the right to disclaim any responsibility for surface damage resulting from tradesmen or failure of the end user to provide periodic regular care and maintenance.