Mettler is instrumental

ization needed. Avoids the lengthy. Kjeldahl method. Complies with ERA and OSHA regulations. Cuts opera- ting/sampling costs 25% to 75%. Increases pla...
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Mettler is instrumental in getting accurate lab results fast.

METTLER/PAAR DIGITAL DENSITY METERS

CALORIMETRIC T H E R M A L ANALYZER

METTLER/HERAEUS NITROGEN ANALYZER

Measure density or specific gravity of l i q u i d s o r gases w i t h o u t t i m e consuming, tedious procedures. Mettler density meters w i l l d o it i n s e c o n d s , even w i t h u n s k i l l e d t e c h n i c i a n s . No need t o d e t e r m i n e w e i g h t , v o l u m e or t e m p e r a t u r e . Therefore, you eliminate a major s o u r c e of errors. Measure i n range of 0 t o 4 g / c m 3 , f r o m - 1 0 ° C t o + 60°C. A v a i l a b l e in t h r e e m o d e l s . CIRCLE 142 ON READER SERVICE CARD

Features c a l o r i m e t r i c r e p r o d u c i b i l ity of ± 0 . 5 % a n d 0.016 m i l l i c a l o r i e s per second per inch sensitivity. Covers range from - 1 7 0 ° C to +550°C w i t h t e m p e r a t u r e measurem e n t p r e c i s i o n of ± 0 . 1 ° C . N o i s e level is less t h a n ± 1 m i c r o c a l o r i e per s e c o n d . M o d u l a r d e s i g n makes e x p a n s i o n of s y s t e m c o n v e n i e n t .

Gives rapid results in determining nitrogen and protein content. Operator able to perform 50 to 60analyses per day. No calibration or standardization needed. Avoids the lengthy Kjeldahl method. Complies with EPA and OSHA regulations. Cuts operating/sampling costs 25% to 75%. Increases plant productivity and profitability.

MELTING/SOFTENING POINT DETERMINATIONS

Mettler FP series of m o d u l a r i n s t r u ments d e t e r m i n e s exact melting ranges using polarized light t h e r m a l m i c r o s c o p y . Provides extremely fast response over t h e - 2 0 ° C to +300°C range. T h e r m a l events are digitally d i s p l a y e d . Replaces o l d ASTM m e t h o d and Wiley melting point m e t h o d . CIRCLE 145 O N READER SERVICE CARD

CIRCLE 143 ON READER SERVICE CARD

CIRCLE 1 4 4 O N READER SERVICE CARD

A U T O M A T I C TITRATION SYSTEM

All t h e a u t o m a t i c t i t r a t i o n c a p a b i l ity y o u need is in this system. Fixed end p o i n t t i t r a t i o n , t i t r a t i o n c u r v e or first derivative r e c o r d i n g , pH stat r e c o r d i n g , manual fixed i n c r e ment titration and manual titration.

Easy t o operate. S i m p l e p r o g r a m m i n g c o n t r o l s . Meets a l l p o t e n t i ometric needs for aqueous and n o n a q u e o u s t i t r a t i o n s as w e l l as specific ion applications. CIRCLE 146 ON READER SERVICE CARD

Mettler®

Mettler Instrument Corporation · Box 100 · Princeton, NJ 08540

ANALYTICAL CHEMISTRY, VOL. 48, NO. 7, JUNE 1976 · 597 A