000			01588nam a2200229Ia 4500
003			NULRC
005			20250520102736.0
008			250520s9999 xx 000 0 und d
020			_a9780875530130
040			_cNULRC
050			_aQD 142 .S73 2012
245		0	_aStandard methods for the examination of water and wastewater / _cAmerican Public Health Association, American Water Works Association and Water Environment Federation.
250			_aTwenty-second edition
260			_aWashington, D.C : _bAmerican Water Works Association, _cc2012
300			_a1 volume (various pagings) : _bcolor illustrations, portrait, color plates ; _c29 cm.
365			_bUSD332.5
504			_aIncludes bibliographical references and index.
505			_aIntroduction -- Physical and aggregate properties -- Metals -- Inorganic nonmetallic constituents -- Aggregate organic constituents -- Individual organic compounds -- Radioactivity -- Toxicity -- Microbiological examination -- Biological examinations.
520			_a"The signature undertaking of the Twenty-Second Edition was clarifying the QC practices necessary to perform the methods in this manual. Section in Part 1000 were rewritten, and detailed QC sections were added in Parts 2000 through 7000. These changes are a direct and necessary result of the mandate to stay abreast of regulatory requirements and a policy intended to clarify the QC steps considered to be an integral part of each test method. Additional QC steps were added to almost half of the sections."--Pref. p. iv.
650			_aWATER ANALYSIS
942			_2lcc _cBK
999			_c14245 _d14245