NEW LITERATURE
Water temperature. Bulletin describes temperature recording accessory for use with Stevens Type A Recorder. Sensor can be placed in water or other liquid up to 100 ft from recorder. Leupold & Stevens, Inc. 91 Sludge press. New brochure describing sludge press capable of raising sludge consistencies from 3% to as much as 50% in one operation. Brochure describes unique twin-roll unit which automatically compensates for feed rate, freeness, and consistency to dewater organic sludge to constant cake dryness. Ingersoll-Rand Environmental Div. 92 Exhaust purifier. Bulletin announces availability of OC-50 exhaust purifiers for propane-fueled lift-truck engines. Bulletin also contains information on other exhaust purifiers for engines powered by leaded, low-lead or white gasoline, or diesel fuel. Oxy-Catalyst, Inc. 93 Engineering services. New 7-part package entitled "Mission Possible" describes engineering capabilities and services and gives full particulars and background of engineering staff. Company specializes in engineered systems for chemical processing and pollution control, with emphasis on distillation and extraction. Chem-Pro Equipment Corp. 94 Diffraction pattern. Brochure describes diffraction pattern sampling techniques and application. Technique uses laser-lens combination to perform sophisticated Fourier transform computation. Applications include precision measurements, pollution monitoring, particle analysis, image analysis. flaw detection, and automatic inspection systems. Recognition Systems, Inc. 95 Waste water clarifier. Bulletin describes compact single, advanced water treatment system for pollution abatement. Simultaneously removes both floatable and setlleable pollutants in about I/d the retention time of the conventional dissolved gas flotation unit and l/,22 of the retention time of settling tanks. Rheem Superi96 or, Div. of Rheem Mfg. Co. 362
EnvironmentalScience & Technology
Fish stupifier. Highly concentrated, liquid chemical stupifies fish and is nontoxic to man or other marine organisms. Allows collection of marine specimens without polluting the water with long-lived chemicals. Blue 97 Spruce Co. Process control. Brochure presents latest pneumatic instruments for process control which includes remote mounted controllers and panelmounted units designed for use in centralized control rooms. The Foxboro Co. 98
Sampler. Bulletin describes portable liquid sampler with wide versatility. Capacity ranges from 10 to 2000 cm3/min. The Clarkson Co. 104 Data sheet. Data sheet describes high-speed laboratory rotor mill for discrete and continuous grinding of solid wastes, garbage, landfill, sewage, etc. Mill grinds to micron-size particles without the use of Dry Ice or liquid nitrogen. Geoscience Instruments Inc. 105
Catalog. New catalog describes Teflon glass laboratory ware joints designed to replace standard taper ground glass joints. Glaseal Products 99
Services. Brochure details capabilities of company which include consultation, collection and analysis, data reduction and interpretation, and recommendations for abatement or control programs. Environmental Research Group, Inc. 106
Filtration. Bulletin illustrates line of cartridge filters, rotary vacuum filters, filter plates and frames, filter cartridges, automatic filter stations, high-volume filters, and temperatureresistant fabrics. Technical Fabricators, Inc. 100
Instrument line. Brochure explains firm's complete product line of pollution control and analysis, process control instruments. Great Lakes Instrument Co. 107
Environmental services. Brochure lists consulting services of company including water quality data collection programs, environmental systems analysis, and alternative methods of sewage disposal. Enviroquality 101
Sodium bicarbonate markets. Illustrated brochure tells industry's myriad uses of sodium. Brochure contains wealth of data on properties and uses which could suggest additional ways for improving existing products. Church & Dwight Co., Inc. 108
Control valves. Bulletin briefly describes and illustrates product offerings in field of automatic control valves and accessories for the process industries. ITT-Hammel Dahl/ Conoflow 102 NO, monitor. Bulletin details operating features of stack/vehicular chemiluminescent NO-NOx monitor. Same bulletin includes information of atmospheric ozone monitor. REM Scientific, Inc. 103
Need more information about any items? If so, just circle the appropriate numbers on one of the reader service cards bound into the back of this issue and mail in the card. NO stamp is necessary.
Personnel training. Total package approach to power plant personnel training outlined in new brochure. Company's approach provides integrated on-site training center housing classrooms, one or more simulated control rooms, video tapes and audiovisual equipment, self-teaching equipment and, optionally, a training reactor. NUS Corp. 109 Air filtration. Booklet discusses elements to be considered in choosing an appropriate air filtration unit and provides data to aid in selection of proper fabric for collecting various kinds of effluent dust. Brochure covers properties of high-temperatureresistant nylon applicable to air-filtration market. Du Pont Co. 110
Scrubbers. New two-color brochure covers line of Venturi, tray- and spray-cyclonic scrubbers. Includes flow diagrams of typical installations and applications to air pollution control in various fields. Swemco Inc. 111 Environmental control systems. Information folder on environmental control systems contains various pieces of literature pertaining to Johns-Manville products, systems, and services designed to help control air and water pollution. Folder contains directory to company's environmental engineering department. Johns-Manville Inc. 112 Chemical handbook. Two-hundredpage handbook of chemicals gives molecular formula, molecular weight, and important physical properties for over, 100 lipids, pesticides, amino acids, carbohydrates, hydrocarbons, amphetamines, barbiturates and other chemicals of biological interest. Supelco, Inc. 113 Polymers. Technical literature describes use of Hercules CMC and Natrosol hydroxyethyl cellulose to provide rheology and water retention in pigmented latex coatings for paper and paperboard. Literature includes six-page reprint from most recent issue of the "Hercules Chemist" discussing broad aspects of research program to determine effectiveness of polymers in paper coating. Hercules. Inc. 114
No correction for temperature or pressure 15 Ranges : 0-5 sccm to 0-200 scfm Linear: 0-100% of range t?h% Output: 0-5 volt dc
TRANSDUCERS Rugged, with no moving parts Suitable for corrosive gases Low pressure drop: 4"-10" H2O
Cooling tower control. Illustrated fullcolor bulletin tells of systems for automatically controlling chemical treatment of cooling tower water to keep tower free from scale and corrosion and provide a fail-safe backup function. Engineered control system eliminates haphazard manual control, time-consuming corrections, inadequate bleed-off, overaccumulation of solids, and overtreatment of recirculating water. Metropolitan Refining Co., Inc. 115 Standards publication. First issue of "Duke Standards Chronicle" is 4page periodical devoted to the subject of calibration and reference standards available to Ia borator ies . First issue features asbestos fiber standards, surface area standards, and fine particle standards, among others. Duke Standards Co. 116 Biodegradable plastics. Series of independent test reports on biodegradable plastics is available from company. Bio-Degradable Plastics, I nc. 117 Data package. Data package on continuous-duty monitors and controllers for pH and ORP contains application drawings. engineering data, technical and dimensional specifica-
NIM Frame Mounts ControllerTotalizer-Flowmeter
OPT1ONS tures," detailing applications of steel plates to various engineering prob-
Automatic Flow Controller Digital Readout-TotalizerRecorder Single or Double Point Alarm NIM Type of Construction Request Catalog 500D. Write, or call, for full information:
WTELEDYNE HASTINGS-RAYDIST P. 0. Box 1275, Hampton, Va. 23361 Telephone (703) 723-6531 Circle No. 11 on Readers' Service Card
Volume 7, Number 4, April 1973
363
