Now take a good cold look with Stone DTA AUTO OFF START COOL PROGRAMAUTO COOL TO HEAT ΔΤ=Ι.52
AMMONIUM
NITRATE
SAMPLE: APPROX 1-2 mg. ENCAPSULATED RATE:IO°C/MIN
AUTO HEAT TO COOL
-150
-100
-50
0
50
100
150
200
DEGREES, CENTIGRADE
All components of a Stone instrument have been carefully selected to provide only the best and most consistent results from the patented ring thermocouples (US 3298220) to the exceptional temperature programmer and amplifier. This attention to detail plus the continuing range of new accessories will insure that "DTA to the Stone standard" will always be the ulti mate choice.
For full information on the LB 202 series instruments and accessories including an all-new derivative computer module contact: The Robert L. Stone Company 6500 Tracor Lane Austin, Texas 78721 AC 512, 926-2800 SEE THE H5 FOR THE FIRST TIME AT THE PITTSBURGH
Only the Stone system can give you this COMPLETELY AUTOMATIC PROGRAMS FOR HEATING, COOLING, AND RECYCLING • between any temperature limits from -150°C to 300°C. • at any programmed rate from 0.5°C to 30°C/min. • at any pressure from 10~2 torr to 250 psig. • plus the full Stone sensitivity of 0.002°C },er recorder chart division. A whole new technology in DTA comes with t h e Stone H-5 subambient accessory (patent pending). Vital new information is now revealed in polymers, food products, biochemicals and many materials. The L B 202 series instruments always give the ulti mate in smooth thermograms with m a x i m u m reso lution in sensitivity. Now the same high performance comes complete with the world's first fully auto matic subambient DTA system for operation between -150°C and 300°C.
An analytical TRACOR instrument by
TM AA-115
CONFERENCE
see ACS Laboratory Guide for All Products/Sales Office Circle No. 81 on Readers' Service Card
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