Terrence M. Scanlon won 9-to-7 Senate Commerce Committee approval yesterday for a full term as chairman of the Consumer Product Safety Commission.

Scanlon, who heads the commission on an interim basis while awaiting Senate confirmation, has been sharply criticized by consumer groups that charged him with misusing his office for personal and antiabortion activities.

A General Accounting Office probe found most of the charges against Scanlon lacked foundation, though committee Chairman John C. Danforth (R-Mo.) said some instances of using commission staff for personal business were found. However, Danforth said the incidents did not appear to be systematic or abusive.

Nonetheless, Sen. Bob Packwood (R-Ore.) voted against Scanlon at the committee meeting, saying he did not feel Scanlon had been straightforward with the committee.

Committee staffers were unsure when the Senate will take up the nomination.

Joining Danforth in voting in favor of Scanlon were Sens. Barry Goldwater (R-Ariz.); Larry Pressler (R-S.D.); Slade Gorton (R-Wash.); Ted Stevens (R-Alaska); Robert W. Kasten Jr. (R-Wis.); Paul S. Trible (R-Va.); Daniel K. Inouye (D-Hawaii) and Donald W. Riegle Jr. (D-Mich.).

Joining Packwood in voting against Scanlon were Sens. Nancy Landon Kassebaum (R-Kan.); Ernest F. Hollings (D-S.C.); Wendell H. Ford (D-Ky.); J. James Exon (D-Neb.); Albert Gore Jr. (D-Tenn.) and John D. Rockefeller IV (D-W.Va.).