00386nam a2200133Ia 4500001000500000005001700005008004100022020001500063082001500078100002300093245004400116260002600160650006600186598320261006003915.0120911s9999    xx            000 0 und d  a0442234597  a602.87 RAT  aRatliff, Thomas A.  aThe laboratory quality assurance system  aVan Nostrand Reinhold  aTesting laboratories-quality control- handbooks, manuals,etc.