HOW TO USE THIS CHART
The following chart provides an indication of the ability of plastic stock
shape materials manufactured by Nytef Plastics, Ltd. to resist degradation
caused by chemical attack. This information should be used only as a guide.
Any material that is to be used in a chemical environment should be tested
in the actual application prior to production. All of the data is provided
for chemical contact at room temperature (73êF/23êC). The chemical resistance
of plastic materials will often decrease substantially as temperature
A: No attack to minor degradation. Physical property degradation 10% or
less. Slight changes in color may occur. Slight surface crazing may be
present after extended exposure. Suitable for use under virtually all
B: Significant attack. Physical property degradation 40% or less. May
involve substantial changes in color. Significant surface crazing may
be present. Suitable for short-term exposure or long-term exposure under
C: Substantial attack. Physical property degradation in excess of 40%.
Substantial crazing and cracking may occur after extended exposure. Suitable
for very short-term or intermittent exposure only.
D: Plastic material degrades and/or dissolves quickly. Not to be used
under any circumstances.Concentrations:
Aqueous: Aqueous (water) solution. Concentration is by weight (usually
Saturated: Saturated aqueous solution.
Concentrated: Concentrated aqueous solution.
If the concentration is not given, the test was conducted with a full-strength