A = No Attack, possibly slight absorption. Negligible effect on mechanical properties.
B = Slight attack by absorption. Some swelling and a small reduction in mechanical likely.
C = Moderate attack of appreciable absorption. Material will have limited life.
D = Material will decompose or dissolve in a short.
Aq. = Aqueous Solution
CONC = Concentrated Aqueous Solution
SAT = Saturated Aqueous Solution
* = No data available
Where Aqueous Solutions are Shown the concentration as a weight % is given.