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Firestain is a layer of oxides that is visible on the surface of objects made of metal alloys containing copper when the object is heated, as by a jeweler heating a ring to apply solder during a repair. On copper-containing alloys of gold or of silver (such as sterling silver), it presents as a red or purple stain.
The Scoville scale is a measurement of pungency (spiciness or "heat") of chili peppers and other substances, recorded in Scoville heat units (SHU). It is based on the concentration of capsaicinoids , among which capsaicin is the predominant component.
The Scoville heat unit scale is outdated, objective and shouldn't be encouraged as being the way to determine heat in peppers. The official American Spice Trade Association (ASTA) method for determining heat of peppers is the HPLC (High Performance Liquid Chromotography) HPLC determines the amount of capsaicin in parts per million and then this ...
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The strength of Blair's hottest product, "Blair's 16 Million Reserve", is 16 million Scoville units (Tabasco, in comparison, is 2,500 to 5,000 [3] Scoville units). It contains only capsaicin crystals, and is the hottest possible capsaicin-based sauce. Only 999 bottles of "Blair's 16 Million Reserve" were produced, each one signed and numbered ...
Rate-of-Rise (ROR) heat detectors operate on a rapid rise in element temperature of 6.7 to 8.3°C (12.1 to 14.9°F) increase per minute, irrespective of the starting temperature. This type of heat detector can operate at a lower temperature fire condition than would be possible if the threshold were fixed.
It has since become one of the leading sources of user-generated reviews and ratings for businesses. Yelp grew in usage and raised several rounds of funding in the following years. By 2010, it had $30 million in revenue, and the website had published about 4.5 million crowd-sourced reviews. From 2009 to 2012, Yelp expanded throughout Europe and ...
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