Kaolin
Kaolin has a TLV (threshold limit value) of 2.0 milligrams per cubic meter of air breathed. By comparison iron oxide is considered a safe-to-use material at 5.0, tin oxide is 2.0, barium carbonate is 0.5, quartz is 0.1-0.05.
Some books cite the presence of some free silica in kaolin as a silicosis hazard; however, other sources and regulatory bodies recognize no known hazards and consider it a nuisance dust. Unlike ball clay, kaolin normally only contains small amounts of quartz (e.g. 1%).
Like many clays, data sheets often caution against slipping on a slippery aqueous suspension if it gets spilled on the floor!
ALLERGIES: It isn't possible to be allergic to an inert mineral like clay. However, molds, mildews, and other organisms that can make their home in clay, along with their byproducts, can cause a problem. In Bound Links
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The future of ceramic recipe, material and physical testing record keeping is here.
Maintain your recipe database on-line
- Login to a private account or work with others in a group account (e.g. university).
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- Easy to import your existing data.
- As many side-by-side recipes as you want.
- Many ways to search and classify glaze and body recipes.
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- Standard reports and mix ticket reports with last-minute-totalling; variations report as if they are a complete recipe.
- Video tutorials, help system, contact form on every page, dedicated messaging and support ticket systems.
- It is an industrial-strength database system (unlimited capacity, fast, reliable, scalable).
Imports many file formats
- Glaze recipe formats supported: HyperGlaze, GlazeGhem, GlazeMaster, Matrix, INSIGHT XML recipes (single and multiple), INSIGHT SQLite DB files.
- Assign a batch number to imports, and later search by batch.
- Assign multiple typecodes to imported glaze and body batches (to classify) and search on these later.
- Prepend character sequences to glaze recipe names during import.
- Import the pictures and pair them to their corresponding records automatically.
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Perfect for Education
- Ceramic study programs can now accumulate material, recipe and testing data year-after-year, students can login and together build a valuable ceramic glaze and body knowledge resource.
- Students already have internet connected devices, computers are not even needed in the class.
- The Reference Manager gives you quick access to the Digitalfire Ceramic Reference Database.
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