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 can also be provided as primary or secondary drainage points. Scuppers are rectangular openings in parapet walls that are a minimum of 4 inches in width and height ranging from 4 to 6 inches. If the scuppers are used as primary drainage, then they are applied flush with the roof level. If they are used for secondary drainage, then they should be a minimum of 2 inches above the roof level and a maximum of 4 inches above the roof level. Once the number of required drains for the area is determined, the size of the drain inserts and plumbing should be established.