NEW BOOKS In 1962, Biochemical Sections will not have an index of its own, though a separate index may be developed later. Users can depend on the whole CA author, subject, and formula indexes. Subscription prices are as follows: ACS members, for personal use only, $12.50; nonmember individuals, for personal use only, $25.00; colleges and universities, $25.00; all others, $115.00. Special rates are available for multiple subscriptions.
A new category, nonmember individual, recognizes the needs of individuals who may not be ACS members but who need CA-Biochemical Sections for their own personal use. ISA Recommended Practices
Six new Recommended Practices, issued to foster uniformity in instrumentation techniques, terminology, and design, have been published by the
Standards and Practices Department of the Instrument Society of America, Penn-Sheraton Hotel, Pittsburgh 19, Pa. Recommended Practices (RPs), such as the six just issued, are developed by ISA committees staffed with leading authorities who reflect the interests of instrument users, manufacturers, and technical personnel. From inception of an R P until issuance, five years are frequently expended for preparation. To date, ISA has published a total of 33 Recommended Practices. The new RPs, which are available from ISA, are: ISA-RP16.5. Installation, Operation, Maintenance Instructions for Glass Tube Variable Area Meters (Rotameters). (ISA members 75$ ; nonmembers $1.25.) ISA-RP16.6. Methods and Equipment for Calibration of Variable Area Meters (Rotameters). (ISA members 75$; nonmembers $1.25.)
Chemically inert, non-toxic
ISA-RP20.2. Specification Forms for Resistance Bulbs, Gauge Glasses & Cocks, Pressure & Temperature Switches, Level Switches, Steam Traps & Drainers, and Miscellaneous Instruments. (ISA members $1; nonmembers $1.50.)
Glass-clear for visual control
ISA-RP23.1. Miniature Recorder Chart Ranges. (ISA members 50$ ; nonmembers 75$.)
TYGON
Tough, flexible, easy to couple
_
m _
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ISA-RP26.4. Dynamic Response Testing of Process Control Instrumentation. Part IV-Closed Loop Actuators for Final Control Elements. (ISA members 75$; nonmembers $1.25.) ISA-RP31.1 Terminology and Specifications for Turbine-Type Flow Transducers (Volumetric). (ISA
flexible plasticmembers 50$; nonmembers 75$.) /
Meets every lab. tubing test
TUBING U. S. Government Publications The following publications are available from the Office of Technical Services, Washington 25, D. C. A
Tygon is α registered Trade Mark of The U. S. Stoneware Co.
U. S. S T O N E W A R E AKRON 9 , O H I O
37-4-E
Circle No. 161 on Readers' Service Card
84 A
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ANALYTICAL CHEMISTRY
High-Speed Electromechanical Shutter. AD 260765. U. S. Naval Ordnance Laboratory. 60 pages. 1961. $1.50.
This 60-page report describes an electromechanical shutter with submillisecond open time, designed to control
