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 ?
22, 2019, the Occupational Safety and Health Administration (OSHA) released a set of Frequently Asked Questions (FAQs) concerning the agency's final rule regulating occupational exposure to respirable crystalline silica in general industry.
Occupational exposure to respirable crystalline silica occurs when cutting, sawing, drilling, and crushing of concrete, brick, ceramic tiles, rock, and stone products.
OSHA's Small Entity Compliance Guide for the Respirable Crystalline Silica Standard for General Industry and Maritime, discusses methods of compliance, such as using engineering and work practice controls, assessing exposure levels, respirator use, medical surveillance, and written exposure plans.
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 new OSHA Respirable Crystalline Silica Rule was published in March of 2016.
* Designing silicone formulations with a 3M fused silica filler that maintains physical properties and addresses OSHA's 2016 final ruling regarding silicosis hazards of crystalline silica
Crystalline silica exposure has been a workplace health concern in some industries for a long time.
Silicosis is a preventable occupational lung disease caused by the inhalation of respirable crystalline silica dust and can progress to respiratory failure and death (1).
However it's often the case that during the course of construction techniques, such as cutting or grinding concrete and drilling in enclosed spaces, the broken down silica forms into respirable crystalline silica (RCS).
The topcoat is comprised of the cured or fused product of a coating powder of one or more resin component of one or more toughened epoxy resin, from 0.1 to 5 parts per hundred parts resin (phr) of one or more wax and from 75 phr to 200 phr of one or more extenders wherein the one or more extenders is selected from the group consisting of barium sulfate, titanium dioxide, iron oxides, crystalline silica (quartz), calcium metasilicate, soda lime glass spheres, magnesium silicate, nepheline syenite, muscovite mica, diatomaceous earth, kaolin clay and calcium carbonate.
I have worked with many families over the years who have suffered as a result of asbestos exposure, but a little known threat is beginning to emerge in the form of crystalline silica exposure.
However, a study by the National Institute of Occupational Safety and Health (NIOSH) found that workers at 11 hydraulic fracturing sites in five states were exposed to high levels of crystalline silica dust.