NEW LITERATURE DIGEST
Total organic carbon analyzer. A 4page folder describes Model 634-900 total organic carbon analyzer for liquid samples. According to the company the unit features direct readout, automatic operation, solid state design, 3-minute analysis time, and strip chart recording outlet for attachment of a recorder, if desired. Laboratory Equip78 ment Corp. Solids-liquid separation. Filter Facts, a factsheet issued periodically, highlights recovery of copper, a filter plate, and a filter for centrifugation in its June issue. T. Shriver & Co., Inc. 79 Instruments. An illustrated 20-pagz catalog lists a variety of instruments for the detection of gaseous and liquid pollutants. as well as valves, pumps, alarms. impingers, regulators. and other laboratory equipment valuable in environmental quality control. Union Industrial Equipment Corp. 80 Corrosion resistant equipment. Catalog C advertises chemical resistant equipment such as exhaust hoods, fans, tank heaters, tanks and liners, ducts and stacks, fume scrubbers, plastic pipes and fittings, and special flooring materials. Heil Process Equipment Corp. 81 Dust/fume collectors. Catalog No. 2.1 on swirl-orifice dust and fume collectors and catalog No. 3.1 on vertical rotor dust and fume collectors are available. United Sheet Metal Co., Inc. 82 New quarterly index. ISA Instrumentation Index, the first issue of which appeared in May 1967, is available by subscription. Instrument Society of 83 A merica . 666 Environmental Science and Technology
Air pollution. A i r Pollution: The Facts is an 8-page folder setting forth some thoughts on the sources, harmful effects, and methods of controlling air pollution. National Tuberculosis Asso84 ciation. Activated carbon filters. Catalog SD1000 is an illustrated 4-page folder describing an activated carbon filter with 12 removable carbon cartridges. Steffey Metal Products, Inc. 85 Sulfur recovery. Clean Air-Pure Sulf u r is a full-color, %page brochure that gives the design and operating details of sulfur recovery units designed to control air pollution from hydrogen sulfide gas. Petrochemical plants, oil refining and processing plants. and other process industry installations are described in the publication, too. Ford, Bacon & Davis Texas, Inc. 86 Thermogravimetric analysis. Bulletin 10-560-100 describes a modular system for micro-thermogravimetric analysis, which the makers claim is easily adapted for differential thermal analysis and derivative thermogravimetric 87 analysis. Fisher Scientific Co. Gas chromatography: integration methods. The July issue of Previews and Reviews highlights analog to digital conversion (integration) for quantitative gas chromatography. A simple ball and disc integrator, manual methods. and an electronic digital integrator are discussed. Varian Aerograph. 88 pH electrodes. A 12-page, illustrated product bulletin presents a line of pH electrodes and buffer solutions. Fisher 89 Scientific Co.
Specific ion meter. Model 401 portable specific ion meter is described in a 3-page folder. The meter has zero drift, photomodulator circuitry, and a tautband mirror scale to eliminate parallax. The instrument provides direct readout of ion activities as well as conventional pH and millivolt measurements. Orion Research, Inc. 90 Vortex burners. Bulletin 129 illustrates and describes short flame, high-heatrelease burners for use in air heaters, furnaces, dryers, kilns, incinerators. and submerged combustion equipment. Heat release rates range from 1.3 to 60 million B.t.u./hr. Thermal Research & Engineering Corp. 91 Liquid filters and separator/filters. Bulletin 290.1 lists with specifications a complete line of filters used to remove solid matter suspended in liquids. Bulletin 390.1 details the complete line of filters for liquid/liquid separations. Each includes applications, and 4izing and selection procedures. Fram Corp. 92 Flow finder. A ?-page bulletin (D-100) describes a low-flow indicator for determining whether small amounts of water are leaking through a plumbing system. The Flow Finder enables water utilities to show their customers that undetected leaks may be contributing to high water bills. 93 Badger Meter Mfg. Co. Recovery systems. A comprehensive program for the purchase or leasing of complete vapor or liquid chemical waste recovery systems is presented in bulletin 767. Mercury Chemical Corp. 94
