Instrumentation, Analytical
| Action Mfg. & Supply Inc. |
| Applied Membranes, Inc. |
| Aquanetics Sys., Inc. |
| Arizona Instrument Corp. |
| Capital Controls Co., Inc. |
| Deltatrak, Inc. |
| Engineering Specialties |
| GLI Int'l. |
| GEM Biomedical / MGM Instruments |
| H F Scientific, Inc. |
| Hanna Instruments, Inc. |
| Horner Discus Int'l. Inc. |
| Hudson Corp. of Texas |
| Hydro-Check Sys., Inc. |
| IBR, Inc. |
| Keytech Water Mgmt. |
| Myron L Co. |
| Orbeco Analytical Sys., Inc. |
| OREC, An Osmonics Co. |
| Palintest |
| Rosemont Analytical, Uniloc Div. |
| Ryan Herco Prod. Corp. |
| Sprite Ind., Inc. |
| Taylor Tech., Inc. |
| Thornton Assoc., Inc. |
| Tintometer Ltd. |
| Visual Inspection Tech., Inc. |
| Waters Equip. |
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