The gral is made from high strength porcelain. The firing processes at 1,300 ° C with hardness between 6 and 8 mols (57.5 on the Rockwell 45 scale), a generic value for all Chiarotti Porcelana. Enamelling or vitrification by immersion with adhesion of + or – 0.2 mm. Used in grinding and grinding of chemicals and others. It accompanies pistil, with wooden handle or totally in porcelain. It should never be used in temperatures above 80 ° C.
Gral for Low Degrees
Chiarotti also manufactures grains for low temperature -180 ° C, much used for analysis with nitrogen.
All grays accompany pistil with porcelain handle, enamelled on the handle, according to the measures below. Can also be purchased separately.
Pistils with wooden handle, giving perfect handling and ergometry. Available in several sizes and custom.
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- Measurements of all products are approximate, considering the retraction of each mass in the manufacturing process.
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