Lab Watch Glasses

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Watch Glasses

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  • DWK Life Sciences (Kimble)

    Concave circular glass used as an evaporation surface for liquids, to cover beakers, or to hold solids when being weighed. Fire-polished edge 1.2 mm minimum thickness Diameter tolerance ±1 mm Manufactured from 90 expansion soda-lime glass conforming to USP Type III requirements

  • Environmental Express

    41mm ribbed watch glass fits all 50mL digestion vessels. Polypropylene construction is naturally free of contaminants. Ribbed design allows partial reflux during digestion. Watch glass has a center stem to aid in handling. Pack of 1000 caps.

  • Meets EPA requirements for methods 3005, 3010, 3020 Fast, easy clean-up Save time, trouble and expense! No need to spend extra time and money having cane sealed to regular watch glasses in order to meet EPA specifications. 100% reliable molded-in ribs cannot pop off, eliminating the need to make…

  • Dynalon

    Product Dimensions (l x w x h) : 0x2.354x0.366in Watch Glass. Polypropylene . 60 mm diameter. Provided with a stable base and made of chemically resistant polypropylene. Will withstand temperatures up to 120ºC. May also be used as beaker covers.

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    United Scientific Supplies

    For covering boiling solutions Fire-polished edges concave shape Can be used on funnels, dishes and jars

  • United Scientific Supplies

    Made from soda lime glass (1.8 mm thick), fine ground and flame polished edges.

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    Saint Gobain

    Chemware® Teflon® TFE Unbreakable in oridinary use Surface is not wetted by water and is nonadherent to most materials Smooth finish resists contamination Can be used at temperatures from -265 to 315°C. Listings indicate watch glass diameter.

  • Unique ribbed watch glasses are designed to fit DigiTUBEs (catalog number 010-500-261) and Teflon® tubes (catalog number 010-500-066) to help promote gentle refluxing. Manufactured using virgin polypropylene with ultra low metal content.

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    Walter Stern

    Concave Clear Annealed Glass Covers Used To Return Condensation to beakers Fired-Polished Edges

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