NEW EQUIPMENT & MATERIALS
"For Scientisis Everywhere"
BURRELL
New STANTON THERMO-RECORDING BALANCE Heats, Weighs and Records
Simultaneously
"Heat to constant weight" is accomplished easily in research or for process control. Fcaturcs include automatic electric weight loading, vvear resistant knives, sapphire planes and full airdamping. STANTON THERMO-RECORDING BALANCE Model TR-1 Electric weight loading, twin electronic recorder and standard furnace with simple program control. A cam, %vhich can be modified, provides uniform rate of heating. Sensitivity 1 mg. Burrell Cat. No. 2-569-41
4,550.00
Price lisled h F.O.B. Pittsburgh, Pa.
Othcr moâels availabh—for thermo-recording or rtcorăing only—stnsitivities 1 mg. or 0.1 mg. Ask for Bulletin No. 329
BURRELL Scientific
Apparafus
CORPORATION and Laboratory
Supplies
2 2 2 3 Fifth A v e n u e , Pittsburgh 1 9 , Pennsylvania For further information, circle number 120 A-1 on Readers' Service Cârd, page 117 A
ATLAS-OMETERS Now used throughout industry for the development and quality control in manufacturing of products subject to deterioration by sunlight, moisture, and temperature fluctuation. Standard testing programs have been adopted in many industries for positive assurance of the prod ucts' resistance to sunlight and weathering. Hero are a few industries using Fade-Ometers and Weather-Ometers for quality control of their products:
FADE-OMETER
Clothing Manufacturers Ink Manufacturers Plastics and Coated Fabrics Electrical Manufacturers DyestufFs and Chemicals Automotive Industry Consulting Laboratories Window Shades Woolens and Worsteds Wall Paper Manufacturers Rugs and Carpets Soap and Toiletries U. S. Government Rubber Painf, Varnish, Dry Colors Paper Mills
More API Standard Hydrocarbons T h r e e h y d r o c a r b o n s h a v e been a d d e d to the list of A P I s t a n d a r d samples b r i n g i n g the list of available c o m p o u n d s to 248. T h e three a r e : 1 -methyl-2-H-propyl-benzene 1 -methyl- 3-n-propyl-benzene 1,4-di-ter
