49300-18 DR/2010 SPECTROPHOTOMETER INSTRUMENT MANUAL © Hach Company, 1996, 1997, 1998, 1999. All rights reserved. Printed in the U.S.A. hm/dk 5-1-97-3ED ap/dk rev 5, 9/99…
23130-18 Digesdahl® Digestion Apparatus Models 23130-20, -21 Instrument Manual © Hach Company, 1989-91, 1995-97, 199 9. All rights reserved. Printed in the U.S.A. hm/ct…