- Crystalline, also referred to as “crystals,” “THC crystals,” or “diamonds,” is a cannabis concentrate that comes in a solid state. It resembles coarse sugar, the kind typically used for decorating sugar cookies or glittering the tops of baked fruit pies.
- Crystalline and Amorphous Solids Crystalline Solids. By definition, a crystalline solid, also simply known as a crystal, is a solid material whose basic constituents such as atoms, ions, and molecules are arranged in a highly ordered and well-defined microscopic structure, known as a crystal lattice.
- CRYSTALLINE October 15th - January 3rd To wrap up this unprecedented year, we’re transforming our three locations into unique expressions of Pantone’s Color of the Year 2020: Classic Blue. From earth to water to air, each location will present a distinct, elemental experience related to the unique qualities of the color.
Most people chose this as the best definition of crystalline: Being, relating to, or co. See the dictionary meaning, pronunciation, and sentence examples. Though in life it remains perfectly fluid, yet, upon exposure to the air, after death, it soon begins to concrete; sending forth beautiful crystalline shoots, as when.
Silica, Crystalline
Silica, Crystalline Menu Workers' Rights
Overview
OSHA is currently analyzing comments submitted to a Request for Information to determine if revisions to Table 1 may be appropriate. See the Unified Regulatory Agenda for details.
- Small Entity Compliance Guides
- Sample Training Powerpoints
- NewNational Emphasis Program – Respirable Crystalline Silica
- NewInspection Procedures for the Respirable Crystalline Silica Standards
Crystalline silica is a common mineral found in the earth's crust. Materials like sand, stone, concrete, and mortar contain crystalline silica. It is also used to make products such as glass, pottery, ceramics, bricks, and artificial stone.
Respirable crystalline silica – very small particles at least 100 times smaller than ordinary sand you might find on beaches and playgrounds – is created when cutting, sawing, grinding, drilling, and crushing stone, rock, concrete, brick, block, and mortar. Activities such as abrasive blasting with sand; sawing brick or concrete; sanding or drilling into concrete walls; grinding mortar; manufacturing brick, concrete blocks, stone countertops, or ceramic products; and cutting or crushing stone result in worker exposures to respirable crystalline silica dust. Industrial sand used in certain operations, such as foundry work and hydraulic fracturing (fracking), is also a source of respirable crystalline silica exposure. About 2.3 million people in the U.S. are exposed to silica at work.
Workers who inhale these very small crystalline silica particles are at increased risk of developing serious silica-related diseases, including:
- Silicosis, an incurable lung disease that can lead to disability and death;
- Lung cancer;
- Chronic obstructive pulmonary disease (COPD); and
- Kidney disease.
To protect workers exposed to respirable crystalline silica, OSHA has issued two respirable crystalline silica standards: one for construction, and the other for general industry and maritime.
OSHA is currently analyzing comments submitted to a Request for Information to determine if revisions to Table 1 may be appropriate. See the Unified Regulatory Agenda for details.
Crystalline Solid Definition
- Small Entity Compliance Guides
- Sample Training Powerpoints
- NewNational Emphasis Program – Respirable Crystalline Silica
- NewInterim Enforcement Guidance for the Respirable Crystalline Silica In General Industry/Maritime Standard