A muffle furnace may be used, if desired, and its use is recom- mended for the final ignition at 800 ± 25°. Sulfate in Reagents STANDARD SULFATE SOLUTION—Dissolve 181.4 mg of potas- sium sulfate (dried at 105° for 2 hours) in water to make 1000 mL. This solution contains the ...
with alumina above 1600°C. Depending on the purity and density, zirconia is used in refractory tubes or cylinders, industrial crucibles, analytical labware, sensors, wear components, refractory cements, thermocouple protection tubes, furnace muffles, liners, and high temperature heating element...
The carbonaceous residue is reduced to an ash by heating in a muffle furnace at 775°C, cooled and weighed. Alternative test methods: JIS K 2272, ISO 6245 Typical specifications: Diesel: Max 0.001 - 0.01 wt% Benzene What: Test method covering the following con...
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