You need this catalog if you are a user of optical crystals
LABORATORY
ABELS
THAT REALLY STICK
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'Rapidly replacing old and expensive labeling programs — Laboratory tested tapes and labels can be ap plied conveniently and ine*pensively, at ο time saving rate.
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Proven to withstand all tempera tures ranging from —70° to 4 - 5 5 0 " and varying conditions of moisture and humidity, they are scientifically produced with odticsives that really stick.
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This new catalog by Optovac presents definitive data on optical crystals. It is not a re-write of previously available material, but a reference source of useful data for optical designers, spectroscopists and other users. Among the included topics are crystal fabrication techniques, crystal comparison and selection data, optical maser crystals and research crystals. Available free on request.
literature.
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OPTOVAC,
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INC.
MASSACHUSETTS
Circle No. 81 on Readers' Service Cam Circle No. 71 on Readers' Service Card
Superb DTA Thermogram necessary for STONE'VMjmo^i complete interpretation SO"C
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ISO
200
250
The resolution and sensitivity recorded in t h i s Stone DTA t h e r m o g r a m p r o v i d e s necessary i n f o r m a t i o n for i n t e r p r e t a t i o n available f r o m no o t h e r s o u r c e .
STONE THERMAL ANALYTICAL SYSTEMS
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All Stone e q u i p m e n t is of m o d u l e design t o e x t e n d appli cability t o m o s t every conceivable m a t e r i a l a n d t e c h n i q u e . . . .Write: Dr. Robert L. Stone: ROBERT L. STONE CO., 3316 Westhill Drive . Austin 4, Texas
ANALYTICAL CHEMISTRY
400
INTRA XTAL M E L T I N G -
Circle No. 90 on Readers' Service Card
146 A
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Laboratories c o n s i d e r i n g t h e use of a n y t h e r m a l analysis s y s t e m a r e i n v i t e d to c o n s u l t w i t h our scientists for r e c o m m e n d a t i o n in m a t c h i n g e q u i p m e n t a n d accessory m o d u l e s to specific laboratory needs. T h e Stone Analytical S y s t e m s i n c l u d e : T e m p e r a t u r e Gradient F u r n a c e . X-Ray D i f f r a c t o m e t e r Furnace. TGA a n d DTA A p p a r a t u s w i t h a c o m p l e t e l i n e of i n t e r c h a n g e a b l e sample holder modules.
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