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Hydrometers and Thermometers by

CERTIFICATION SERVICES

GREERS FERRY GLASS WORKS, INC.
P.O. Box 161     Hwy. 25
Quitman, Arkansas 72131
(501) 589-2947  *  FAX (501) 589-2285
gfgw@hotmail.com

Welcome to our web site gfglass.com

    gfglass  is glad that you have chosen to visit our web site. We have been manufacturing hydrometers and thermometers for industries like yours since 1907. Besides helping you find the instruments you need;  we hope that this site will also supply important information about the use and care of your thermometers, hydrometers and refractometers.

We have a full line of catalogues that we can send you at your request, and trained people available to answer your questions in selecting the proper thermometer, hydrometer or refractometer for your application. To get more information or to place an order; please contact us at the numbers listed above.

| Home | API Hydrometers | ASTM Density Hydrometers | ASTM Specific Gravity Hydrometers |
| ASTM Thermometers | Baume Hydrometers | Brix Balling Hydrometers | Brix Refractometers | Cases |
| Centrifuge Tubes  | Certification Services | Cylinders | Data Loggers | Data Logger Software |
| Data Logger Specifications | Dial Thermometers | Digital Refractometers | Digital Thermometers |
| HiTemp102 Temperature Recorder | HiTemp102PR Pressure and Temperature Recorder |
| HiTemp102RH Temperature and Humidity Recorder | Hydrometer Conversion Tables | Hydrometers |
| Introduction | Laboratory Thermometers | Lbs/Gal | LPG Hydrometers |
| Minimum Maximum & Food Thermometers | Non-Mercury Thermometers |
| Optical Brix Refractometers | Optical Refractometers | Plastic Hydrometers | Pocket Thermometers |
| Process101 Current Recorder | Products | Proof Tralle Hydrometers | Proper use |
| PRTemp101 Pressure & Temperature Recorder | Pulse101 Pulse Recorder |
| Quevenne & Propylene Glycol Hydrometers | Refractometers | Refractometer Selection Guides |
| RFTemp101 Temperature Transmitter | RHTemp101 Temperature & Humidity Recorder | Salt Hydrometers |
| SAMA Thermometers | Sets Hydrometer | Specific Gravity Hydrometers Applications |
| Shock101 Shock Recorder | Soil Hydrometer | Specific Gravity Hydrometers | Tank Gauging Thermometers |
| TC4000 Temperature Recorder | Temp100 Temperature Recorder | Temp101 Temperature Recorder |
| Temperature Converter | Thermometers | Thermometers Armor | True-Tempe | Twaddle Hydrometers |
| Viscometers | Volt101 Voltage Recorder |
Thermo Fisher Scientific Inc