GRADES AND EQUIVALENTS
(and a word of explanation)
The grades shown on the left of the table are those that have been used in the industry for many years. However, being alphabetic, they do not lend themselves well to computerized searches. As a result, most of the industry is in the process of converting to the numeric scale shown on the right. For your convenience, our descriptions show both values. However, in the spirit of technological compromise and for the convenience of our computer, our search engine uses the numeric values on the right.