51.687 U.S. No. 2 Russet.§ 51.687 U.S. No. 2 Russet.
The requirements for this grade are the same as for U.S. No. 2 except that not less than the number of fruits required in § 51.689, Tables I and II, shall have more than one-half of their surface, in the aggregate, affected by discoloration.