PRESSURE MEASUREMENT latran SOLUTIONS New Sanitary Pressure Transmittei^ with easily cleaned flush diaphragm minimizes bacterial buildup Problem: WKMT' How to monitor system pressure or flow in processes requiring sanitary operating conditions such as pharmaceuticals, food and beverage. Solution: Viatran developed an all stainless steel, completely sealed, flush diaphragm transmitter that can be cleaned with steam or chemicals while in-place. The unit also may be removed easily for cleaning. Product: MODEL “50” SERIES SANITARY PRESSURE MINIATURE TRANSMITTER External zero and span adjustment available in the Sanitary series— ^ optional. FU^OiAPHRAGM MNWnZES AREAS FOR BACTERIAL GROWTH Catf our Sales En^neerlng HOTUNE... 716-773-1700 latran CORPORATION 300 INDUSTRIAL DRIVE'GRANO ISLANO, NY 14072»TWX: 710-260-1353 Please circle No. 222 on your Reader Service Page If you’re looking for a way to increase your dairy laboratory’s efficiency, take a look at Nasco’s Whirl-Pak" bags with bar codes. Bar-coded bags make sample identifica¬ tion and recording easy. Nasco has the capabilities of printing bar codes on Whirl-Paks, or you have the option of printing your own bar code labels. If you're looking to automate your lab. Nasco can direct you to, or provide you with all the equipment necessary for a totally automated lab. For information on scanners, racks, multiplexers, printers and other milk testing equipment, call us. Send for your FREE copy of our Sampling Equipment Catalog No. 215. Call or write Dept. WL-867. 'OdCO Free Phone Order Service Fori Atkinson. Wl 53538 1-800-558-9595 Ext. 236 Modesto. CA 95352 Please circle No. 116 on your Reader Service Page DAIRY AND FOOD SANITATIONIJULY 1986 \ lAMFES Sustaining Members Accurate Metering Systems, inc. Foss Food Technology Corporation Nasco International 1705 Carmen Dr. 10355 West 70th St. 901 Janesville Ave. Elk Grove VIg, IL 60007 Eden Prairie, MN 55344 Fort Atkinson, Wisconsin 53538 AHe-Laval, hie. FRM Chem, Inc. National Maatitia Council Agri-Group P.O. Box 207 1840 Wilson Blvd. 11100 North Congress Avenue Washington, MO 63090 Arlington, VA 22201 Kansas City, MO 64153 National Milk Producers Federation Alpha Chemical Services, Inc. GAF 1361 Alps Road 1840 Wilson Blvd. P.O. Box 431 Wayne, NJ 07470 Arlington, VA 22201 Stoughton, MA 02072 National Sanitation Foundation Anderson Chemical Co. Gerber Products Co. 445 State St. P.O. Box 1468 Box 1041 Fremont, Ml 49412 Ann Arbor, Ml 48106 Litchfield, MN 55355 Norton Co. Angenics, Inc. Gibco Laboratories, Inc. P.O. Box 350 100 Inman St. 231 Sutton Street Akron, Ohio 44309 Cambridge, MA 02139 No. Andover, MA 01845 Oxold USA, Inc. Associated Milk Producers, Inc. Gist-Brocades USA 9017 Red Branch Rd. 830 N. Meacham Rd. P.O. Box 241068 Columbia, MD 21045 Schaumburg, IL 60195 Charlotte. NC 28224 Penicillin Aaaaya, Inc. Babson Bros. Co. Henkel Corp. 36 Franklin St. 2100 S. York Road 300 Brookside Ave. Malden, MA 02148 Oak Brook, Illinois 60521 Ambler, PA 19002 The Pillabury Company BBL Microbiology Systems H. B. Fuller Co. 311 Second St., S.E. P.O. Box 243 Monarch Chemicals Div. Minneapolis, MN 55414 Cockeysville, MD 21030 3900 Jackson St. NE Rexham Machinery Group Bio-Lab, bic. Minneapolis, MN 55421 5501 N. Washington Blvd. PO Box 1489 IBAbic. Sarasota, FL 34243 Decatur, GA 30031 27 Providence Rd. Selberling Associates, Inc. Borden, Inc. Millbury, MA 01527 11415 Main St. Dairy & Services Div. Kendall Co. Roscoe, IL 61073 16855 Northchase One Federal St. SmKhKIine Animal Health Products Houston, TX 77060 Boston, MA 02101 CLN Industries, Inc. P.O. Box 2650 Klenzade Division 700 Biilings, Suite F West Chester, PA 19380 Economics Laboratory, Inc. Denver, CO 80011 The Steams Tech. Textile Co. 3050 Metro Drive Dairymen, Inc. 100 Williams St. Suite 208 10140 Linn Station Road Cincinnati, OH 45215 Bloomington, MN 55420 Louisville, KY 40223 3M/Medlcal-Surglcal Dhr. Maryland & Virginia Milk Prod. Assn., Inc. Darigold 225-5S-01 P.O. Box 9154 Rosslyn Station 635 Elliott Ave. W. 3M Center Arlington, Virginia 22209 Seattle, WA 98109 St. Paul, MN 55144-1000 Dean Foods MM America Dairyman, Inc. Universal Milking Machine Div. 1126 Kilbum Ave. P.O. Box 1837 SSS Universal Coops, Inc. Rockford, IL 61101 800 W. Tampa Dairy Equipment Dept. Diversey/Wyandotte Springfield, MO 65805 P.O. Box 460 1532 Biddle Ave. Nalge Co. Minneapolis, MN 55440 Wyandotte, Ml 48192 P.O. Box 365 Walker Stainless Equipment Co. Eastern Crown, bic. Rochester, NY 14602 601 State St. P.O. Box 216 New Lisbon, Wl 53950 Vernon, N.Y. 13476_ Dairy and Food Sanitation (ISSN«273-2866) is 0701. Note: Single copies of reprints are not 0701, 515-232-6699. published monthly by the International Associa¬ available from this address; address reprint re¬ Membership Dues: Membership in the Associa¬ tion of Milk, Food and Environmental Sanitarians. quests to principal author. tion is available to individuals only. Direct dues Inc., executive offices at PO Box 701, 502 E. Lin¬ Business Matters: Corresponderxn regardmg are $28.00 per year and include a subscription coln Way, Ames, lA 50010. Printed by Heuss business matters should be addressed to Kathy to Dairy aiKl Food Sanitation. Direct dues and Printing, Inc., 911 Second St, Ames. lA 50010. R. Hathaway, lAMFES, PO Box 701, Ames, lA both journals are $50.00. Affiliate and Interna¬ Sacond-daaa postage paid at Amaa, lA Post- 500100701. tional Membership include both journals for $50, niMlw; MkkMS chsnQM to lAMFES, Subscription Rates: $60.00 per volume, one plus affiliate dues. Studerrt membership is $14.00 502 E. Lincoln Way, Amaa, lA 500104)701. volume per year, January through December. per year, with verification of student status, and Manuecrlpta: Corrasporxlence regarding mami- Single copies $6.00 each. No cancellations ac¬ includes Dairy arx) Food Sanitation. No cancella¬ scripis and other reading material should be ad- cepted. tions accepted. dreased to Kathy Hathaway, PO Box 701, Ames, Sustaining Mambacahip: A sustaining member¬ Ctakwa: Notice of failure to receive copies must lA 500104)701. 515-232-6699. ship in lAMFES is available to companies at a be reported within 30 days domestic, 90 days “Instnicllona to Contributors’' can be obtained rate of $300 per year, which includes $100 credit foreign. AM corresponderxM regarding changes of from the editor. toward an ad in the “anrHial meeting issue" of address and dues must be sent to lAMFES, Inc., Ordare for Reprints: All orders should be sent the Journal, the July issue. For more information, PO Box 701, Ames. lA 50010-0701. 515-232- to lAMFES. Inc., PO Box 701, Ames. lA 50010- contact lAMFES, PO Box 701, Ames. lA 50010- 6699. 278 DAIRY AND FOOD SANITATIONmSlN 1986 lAMFES Dairy and Food Sanitation OFFICERS AND EXECUTIVE BOARD CONTENTS Vol. 6 No. 7 July, 1986 PresMant, SIDNEY BARNARD, 9 Borland Lab, Pennsylvania State University, Univer¬ sity Park, PA 16802. PresMent-Eiect, ROY GINN, Dairy Quality Control Inst., 2353 No. Rice St., Room 110, St. Paul, MN 55113. ARTICLES: VIce-PrMideiit, LEON TOWNSEND, Milk Control Branch, Bureau for Health Ser¬ vices, 275 East Main St., Frankfort, KY Plumbing Cross Connections In Food 40601. Service Facilities .280 Secretary, ROBERT GRAVANI, 8A Stock¬ Charlie Hall, Sr. and Homer C. Emery ing Hall, Cornell University, Ithaca, NY 14853. Past-President, ARCHIE C. HOLLIDAY, Evaluation of Automated Time Temperature VA Dept, of Ag., 1100 Bank St., Room 511, Richmond, VA 23219. Monitoring System In Measuring Afflliate Council Chrpn., HELENE Freshness of UHT Milk.285 UHLMAN, 1532 W. 4th Place, Hobart, IN 46342. Robert Zall, Joseph Chen and S. C. Fields NEWS AND EVENTS .291 EDITORS • Ron Case New lAMFES Secretary KATHY MOORE HATHAWAY, Editor and • Microwave Oven Safety Brochure Now Available Executive Manager, Box 701, Ames, Iowa 50010 • Growth Hormone May Increase Milk Production SUZANNE TRCKA, Associate Editor, Box 701, Ames, Iowa 50010 ****and more**** HENRY ATHERTON, Technical Editor, University of Vermont, Carrigan Hall, Bur¬ lington, VT 05405. NEW PRODUCT NEWS 295 FOOD SCIENCE FACTS.298 EDITORIAL BOARD • Cockroaches K. ANDERSON. H. V. ATHERTON .... .Buiiington, VT K. J. BAKER. FOOD AND ENVIRONMENTAL HAZARDS TO S. BARNARD . ... University Park, PA HEALTH.300 H. BENGSCH . .Springfield, MO F. BODYFELT. J. BRUHN. NEW MEMBERS.303 J. BURKETT. .Sioux City, lA J. CHAMBERS . _West Lafayette, IN W. CLARK . .Chicago, IL W. W. COLEMAN .... St Paul, MN SYNOPSIS OF PAPERS FOR THE 0. D. COOK. .Rockville, MD lAMFES ANNUAL MEETING.305 R. DICKIE . F. FELDSTEIN . Culpeper, VA R. FUQUA. .Mt. JuHeL TN ANNUAL MEETING REGISTRATION FORMS.308 J. GERBERICH. .Eau Claire, Wl P. HARTMAN . C. HINZ. Le Roy, NY BUSINESS EXCHANGE.310 C. JELUNGS. D. JOLLEY . W. LAGRANGE . JFP ABSTRACTS.316 J. LITTLEFIELD. J. MIRANDA . D. NEWSLOW. D. PEPER. .Sioux City, lA MEMBERSHIP APPLICATION FORM .320 M. PULLEN. SL Paul, MN J. REEDER. D. ROLUNS . READER SERVICE PAGE .321 R. SANDERS . P. C. VASAVADA ..., .River Falls. Wl E. 0. WRIGHT.. .Bella Vista, AR CALENDAR.324 DAIRY AND FOOD SANITATION/JULY 1986 279 Dairy and Food Sanitation, Vol. 6, No. 7, Pages 280-284 (July 1986) CopyrigN®. lAMFES, P.O. Box 701, Amos. lA 50010 Plumbing Cross Connections In Food Service Facilities Charlie Hall, Sr. Charlie Hall and Associates, Inc. Garland, Texas Homer C. Emery, Ph.D. Brooke Army Medical Center Environmental Science Officer Fort Sam Houston, Texas 78234 INTRODUCTION As a public health official, the hazards may be found in the follow¬ Sanitarian should be a key individual ing general situations: in cross connection control programs, 1. Hazards where sewage and waste There would be little debate about especially in food processing and water may enter the potable water injecting toxic chemicals into a com¬ food service facilities. Since the revi¬ system. munity water distribution system or sion of the USPHS Food Service 2.