The Collaborative International Dictionary of English v.0.48:

Standardize \Stand"ard*ize\ (-[imac]z), v. t. (Chem.)
   To reduce to a normal standard; to calculate or adjust the
   strength of, by means of, and for uses in, analysis.
   [1913 Webster]

WordNet (r) 3.0 (2006):

standardize
    v 1: cause to conform to standard or norm; "The weights and
         measures were standardized" [syn: standardize,
         standardise]
    2: evaluate by comparing with a standard [syn: standardize,
       standardise]

Moby Thesaurus II by Grady Ward, 1.0:

54 Moby Thesaurus words for "standardize":
   adjust, arrange, array, assimilate to, balance, chart, codify,
   cool off, coordinate, damp, deploy, dispose, equalize, equilibrize,
   even, fix, flatten, form, formalize, grade, harmonize, hierarchize,
   homogenize, lay out, level, line up, make uniform, marshal,
   methodize, normalize, order, organize, pacify, plan, quiet, rank,
   rationalize, regiment, regularize, regulate, routinize, set up,
   settle, smooth, stabilize, stereotype, structure, symmetrize,
   synchronize, systematize, tranquilize, tune, tune up, uniformize