Special powders. Main uses: Latent fingerprints on non-porous and semi-porous surfaces. The special powders mixtures are developed to improve the characteristics of concentrated or regular powders: - greasy features are reduced. - lumps are avoided. - prints show better contrast.
Some muscadines in a bowl; the green ones are scuppernongs. The scuppernong /ËskÊpÉrËnÉÅ/ is a large variety of muscadine (Vitis rotundifolia), a species of grape native to the Southern United States. It is usually a greenish or bronze color and is similar in appearance and texture to a white grape, but rounder and larger and first known as the 'big white grape'.
Scuppers are fabricated with flanges on the roof side which extend 4 onto the roof. Wood blocking is required under scuppers to provide a nailable surface. Scuppers should be spaced no greater than 10 feet apart depending on the roof area drained. Special Conditions: In areas with severe ice and snow conditions and/or excessive debris, conductor heads with overflow openings should be used. Where a roof is completely surrounded by parapet walls and drainage is provided by scuppers or internal drains, overflow scuppers should be provided. The roof-side flange of the gravel stop is nailed at 3 O.C. to the perimeter blocking.