V O L U M E 2 4, NO. 7, JULY
21 A
1952
HAZE in liquids CM work for you!
NEW USES FOR A N OLD NUISANCE PRODUCT CLARITY
BACTERIOLOGY
CHEMICAL ANALYSIS
Haze measurements give quick and precise evaluations of filter efficiency, show which filters are most effective for your process, when they should be cleaned or replaced. In the production of whiskey, beer, wine, and other beverages, where clarity is important, Nephelometry* has become a vital tool of product control and cost reduction for the country's largest producers. By measuring haze, bacteriologists can accurately follow even the very early stages of bacterial growth in liquid media, evaluate the effects of nutrients or inhibitors, quickly detect contamination in sealed ampules. Leptospira, Actinomyces Bovis, Tubercle Bacilli, Staphylococcus Aureus, E. Coli and many other organisms are being studied successfully with great savings in time, and with increased precision. Utility Companies and other operators of high-pressure boiler systems monitor the effectiveness of feed water pretreatment, hold Calcium content below 0.2 ppm by Nephelometry*. Dairy Producers measure butter-fat in Cottage Cheese; Pharmaceutical makers measure the clarity of vitamins and antibiotic suspensions.
Nephelometry can work for you, to improve your product, sharpen process control, reduce operating costs. Ask for information about Coleman Photo-Nephelometers, and the Coleman Nephelos System. * N e p h e l o m e t r y ; f r o m the G r e e k " N e p h e l o " (Cloud). The measurement of haze or cloudiness in fluids
COLEMAN Nepho-Colorimeter AND
Photo-Nephelometer
Model 7—ask for Bulletin B-213
Model 9—ask for Bulletin B-215
COLEMAN
I N S T R U M E N T S · Dept.A.
MAYWOOD, ILLINOIS
