Record Display for the EPA National Library Catalog
RECORD NUMBER: 536 OF 560| Main Title | Ultraviolet microbiological water treatment systems | |||||||||||
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| Publisher | NSF International, | |||||||||||
| Year Published | 1991 | |||||||||||
| Report Number | ANSI/NSF 55-1991 | |||||||||||
| OCLC Number | 26791759 | |||||||||||
| Subjects | Water--Purification--Biological treatment--Standards | |||||||||||
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| Collation | 1 v. (various pagings) : ill. ; 28 cm. | |||||||||||
| Notes | At head of title: ANSI/NSF International (NSF) Standard 55-1991." "Approved by the American National Standards Institute, Inc., August 14, 1991." "American national standard." "ANSI/NSF 55-1991." |