silicon dioxide

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Related to Crystalline silica: Amorphous silica

silicon dioxide

n.
Silica.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.silicon dioxide - a white or colorless vitreous insoluble solid (SiO2)silicon dioxide - a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
cristobalite - a white mineral consisting of silica; found in volcanic rocks
quartz - a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities
chert - variety of silica containing microcrystalline quartz
flint - a hard kind of stone; a form of silica more opaque than chalcedony
lechatelierite, quartz, quartz glass, vitreous silica, crystal - colorless glass made of almost pure silica
oxide - any compound of oxygen with another element or a radical
silex - a pure form of finely ground silica
tridymite - a mineral form of silica
Translations
piidioksidi
References in periodicals archive ?
Crystalline silica is found in granite, sandstone, quartzite, various other rocks and sand.
The company is also expected under the permit to meet the state's limit for respirable crystalline silica emissions.
26, California's Environmental Protection Agency's Office of Environmental Health Hazard Assessment (OEHHA) issued a safe use determination (SUD) to NPCA for crystalline silica in interior flat latex paints containing six percent crystalline silica, or less, with diatomaceous earth as the sole source of crystal line silica, under California's Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65).
Silicosis is a potentially fatal and typically chronic fibrotic lung disease caused by occupational exposure to respirable crystalline silica dust (1).
The recently finalized workplace exposure standard for crystalline silica poses significant challenges to the metalcasting industry.
In a unified front, concrete, cement and aggregate interests question the scientific basis, worker benefit claims, enforcement feasibility and compliance costs at the heart of the Occupational Safety and Health Administration's Notice of Proposed Rulemaking On Occupational Exposure to Respirable Crystalline Silica.
The Occupational Safety and Health Administration's (OSHA) Notice of Proposed Rulemaking (NPRM) for Occupational Exposure to Respirable Crystalline Silica was published on Sept.
The request was based on the identification of high exposures to crystalline silica and deficiencies in the respiratory protection program at a worksite where an employee who worked as an abrasive blaster had died with accelerated silicosis in 1992[2].
Implemented to eliminate the loss of life and illnesses caused by silica-related diseases, panelists highlighted the potential liability and legal ramifications associated with the handling of respirable crystalline silica in construction applications.
The IQMS362 operates free of a dust cloud, meeting the OSHA Silica Permissible Exposure Limit (PEL) of 50 micrograms of respirable crystalline silica per cubic meter of air ([micro]g/m3), averaged over an eight-hour day.
The data can guide the development and, key word, implementation of engineering controls to reduce your workers' exposures to respirable crystalline silica.
Overexposure to respirable crystalline silica or man-made vitreous fiber may cause serious chronic or delayed lung disease or cancer.