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Back to GLOSSARY OF TERMS

Halmovy window

A hole in the furnace through which floats are introduced

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Halmosa (Foam)

The layer of bubbles on the surface of the glass

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Free process (cylindrical method)

A method of producing flat glass in which a freebie (cylinder) is formed from a portion of glass melt by blowing, which is then cut lengthwise, again heated and smoothed in a furnace

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Chemical laboratory glass

Glass with high chemical and thermal stability, suitable for processing on a glass blower; used in the manufacture of chemical laboratory glassware, instruments and apparatus of the chemical industry

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Chemical durability

Resistance to glass chemical attack of various reagents

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Cold glass

Glass that is processed at room temperature

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Chrome glass

A kind of stained glass opal glass green, stained with chromium oxides

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Crystal glass (lead glass, crystal)

Colorless glass with a high degree of transparency, containing a significant amount of lead oxide

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Art glass

Stained-glass windows, smalt mosaics, art vessels, architectural details, decorative compositions, sculptures (small forms), lamps, artificial jewels (jewelry)