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| Performance |
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 Method
A
For
volatile chemicals. A cotton ball, saturated with the
test chemical, was placed in a one ounce bottle
(10mm x 75mm test tube or similar container). The container
was inverted on the test material surface for a period
of 24 hours. Temperature of test: 23° +/-2° C
(73° +/-4° F). This method was used for the
organic solvents.
Method B
For non-volatile
chemicals. Five drops (1/4cc) of the test chemical
were placed on the test material
surface. The chemical was covered with a watch glass
(25mm) for a period of 24 hours. Temperature of test:
23° +/-2° C (73° +/-4° F). This method
was used for all chemicals listed below other than
the solvents.
Evaluation
After 24 hour exposure, exposed
areas were washed with water, then a detergent solution
and
finally with isopropyl alcohol. Materials were then
rinsed with distilled water and dried with a cloth.
Samples are numerically rated as follows:
1 No
Effect - No detectable change in the material surface.
2 Excellent - Slight detectable change in color
or gloss but no change in function or life of the surface.
3 Good - A clearly discernible change in color or gloss
but no significant impairment of surface life
or function.
4 Fair - Objectionable change in appearance
due to dis-coloration or etch, possibly resulting in
deterioration
of function over an extended period of time.
5 Failure
- Pitting, cratering or erosion of the surface. Obvious
and significant deterioration.
| Inorganic
Acids - Corrosive |
Black |
Platinum |
Pearl |
Green |
Blue |
| Chromic Acid (CrO3) 40% |
2 |
2 |
2 |
1 |
3 |
| Hydrochloric Acid (HCl) 10% |
1 |
1 |
1 |
1 |
1 |
| Hydrochloric Acid (HCl) 37% |
1 |
1 |
1 |
1 |
1 |
| Nitric Acid (HNO3) 40% |
1 |
1 |
1 |
1 |
1 |
| Nitric Acid (HNO3) 70% |
2 |
2 |
2 |
2 |
2 |
| Sulfuric Acid (H2SO4) 40% |
1 |
1 |
1 |
1 |
1 |
| Sulfuric Acid (H2SO4) 96% |
5 |
5 |
5 |
5 |
5 |
| Organic
Acids - Corrosive |
Black |
Platinum |
Pearl |
Green |
Blue |
| Acetic Acid (CH3CO2H) -5% |
2 |
2 |
2 |
1 |
1 |
| Acetic Acid (CH3CO2H) -Glacial |
2 |
1 |
1 |
1 |
1 |
| Citric Acid (C6H8O7) -1% Oleic |
1 |
1 |
1 |
1 |
1 |
| Acid (C18H34O2) Phenol |
1 |
1 |
1 |
1 |
1 |
| Solution (C6H5OH) -5% |
1 |
1 |
1 |
1 |
1 |
| Alkaline
Solutions - Corrosive |
Black |
Platinum |
Pearl |
Green |
Blue |
| Ammonium Hydroxide (NH4OH) -10% |
1 |
1 |
1 |
1 |
1 |
| Potassium Hydroxide (KOH) -15% |
1 |
1 |
1 |
1 |
1 |
| Sodium Carbonate Sol (Na2CO3)
-20% |
1 |
1 |
1 |
1 |
1 |
| Sodium Hydroxide Sol (NaOH)
-60% |
1 |
1 |
2 |
1 |
2 |
| Sodium Hypochlorite Sol (NaOCl)
-4% |
1 |
1 |
1 |
1 |
1 |
| Organic
Solvents |
Black |
Platinum |
Pearl |
Green |
Blue |
| Acetone (CH3COCH3) |
3 |
2 |
2 |
2 |
2 |
| Benzene (C6H6) |
2 |
2 |
2 |
2 |
2 |
| Carbon Tetrachloride (CCl4) |
1 |
1 |
1 |
1 |
1 |
| Diethyl Ether (CH3CH2OCH2CH3) |
1 |
1 |
1 |
1 |
1 |
| Dimethyl Formamide (HCON[CH3]2) |
1 |
1 |
1 |
1 |
1 |
| Ethyl Acetate (CH3CO2C2H5) |
2 |
2 |
2 |
2 |
2 |
| Ethyl Alcohol (CH3CH2OH) -95% |
1 |
1 |
1 |
2 |
1 |
| Ethylene Dichloride (ClCH2CH2Cl) |
1 |
1 |
1 |
1 |
1 |
| Heptane (CH3[CH2]5CH3) |
1 |
1 |
1 |
1 |
1 |
| Isooctane (C8H18) |
1 |
1 |
1 |
1 |
1 |
| KerosenE |
1 |
1 |
2 |
1 |
1 |
| Methyl Alcohol (CH3OH) |
1 |
1 |
1 |
1 |
1 |
| Sodium Hypochlorite Sol (NaOCl)
-4% |
1 |
1 |
1 |
1 |
1 |
| Organic
Compounds |
Black |
Platinum |
Pearl |
Green |
Blue |
| Aniline (C6H5NH2) |
2 |
1 |
1 |
2 |
1 |
| Mineral Oil |
1 |
1 |
1 |
1 |
1 |
| Olive Oil |
1 |
1 |
1 |
1 |
1 |
| Soap Solution -1% |
1 |
1 |
1 |
1 |
1 |
| Transformer Oil |
1 |
1 |
1 |
1 |
1 |
| Turpentine |
2 |
1 |
1 |
1 |
2 |
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Chemical
Resistance