Matheson has what it takes

Gloucester, Massachusetts 019 50/ Joliet, Illinois 60434. La Porte, Texas 77571 /Cueamonga, ... 6056 Heusenstamm, West Germany. CIRCLE 140 ON READER ...
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Really Good Gas Calibration Standards Take 25 Years To make really good gas standards for instrument calibration you need knowledge, experience, and technique. Matheson has been making accurate calibration mixtures and analyzing them to maintain the highest standards of accuracy since long before the advent of gas chromatography.

Difficult mixtures...the kind no one else can make...take time. Matheson makes sure they're right. Of course, Matheson can supply the simple 2- and 3-component mixtures, too. We supply them quickly and economically with the same care, precision, and accuracy used to make the more complex mixtures. For instrument calibration around the world, Matheson mixtures are the quality standard. So remember, if it's worth calibrating, it's worth Matheson accuracy. For important information on calibration mixtures, use the Reader Service No.

A continuing research program supports this experience and has provided valuable information on the techniques necessary to prepare accurate, stable, economic gas mixtures. To achieve this, we use both steel and aluminum cylinders combined with a variety of internal cylinder preparations. You can rely on Matheson technology to pick the right combination to meet your needs.

Matheson has w h a t it takes t o deliver accurate gas m i x t u r e s on time,

Matheson Lyndhurst, N.J. 07071

East R u t h e r f o r d , N.J. O 7 0 7 . i / M o r r o w , G e o r g i a :i02(>0 G l o u c e s t e r , Massachusetts 0 1 9 3 0 / J o l i e t , Illinois 604 54 La Porte, Texas 77571 / C u c a m o n g a , C a l i f o r n i a 91710 N e w a r k , C a l i f o r n i a 9 4 5 6 0 / B r i d g e p o r t , N.J. 08014 D o r s e y , M a r y l a n d 21 2 2 7 / W h i t b y , O n t a r i o , C a n a d a L1Ν 5R9 E d m o n t o n , A l b e r t a , C a n a d a T5B 4 K 6 / B 2431 O e v e l , B e l g i u m 6056 H e u s e n s t a m m , W e s t G e r m a n y

CIRCLE 140 O N READER SERVICE CARD ANALYTICAL CHEMISTRY,

VOL. 50, NO.

1, J A N U A R Y

1978