These unglazed white porcelain streak plates are 1” x 2” in size and are for use in hardness testing of rocks and minerals.

High-quality dark blue cobalt glass filter is used in sodium and potassium salt flame tests. When a flame is viewed through this filter, the color orange is blocked so that a violet-colored flame is visible. Sold as packs of 6.

Desiccators include on three 16mm high feet. Glazed on top surface. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat tested in our factory. Glaze - No…

Color-reaction or spot plates, glazed except for bottom surface. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat tested in our factory. Glaze - No…

Plates made of clear fling glass, 2mm thick, with fine polished edges.

Clear polystyrene plate features deep uniform wells and include lids. Each well has an alpha-numeric marking. Non-sterile plates are individually wrapped in a plastic bag. The 24-well plate measures 5" long x 3-1/4" wide x 7/8" high. Flatbottomed wells are 5/8" deep and approximately 10mm in…

Streak, unglazed, for use by mineralogists. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat tested in our factory. Glaze - No softening occurs up to…

These unglazed black streak plates are 1” x 2” in size and are for use in hardness testing of rocks and minerals.

Includes large hole in center and additional 6 to 10 holes depending on plate size. Glazed on one side. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat…

Clear polystyrene plate features 24 each 5/8"

The product is made of medical grade PP with flatness of the upper surface being controllable within 0.25mm and is easy for film sealing.

These economical white plastic plates are suitable for most applications in which glass or porcelain plates are used; however, they are not recommended for strong solvents such as acetone or xylene. Each plate measures 112 x 92mm, Supplied in a pack of 12. 6 or 12 cavities, each cavity is 2cm…