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Sensors measuring the paper quality (online meters) are attached to a sensor platform that move across the web guided by the scanner beam. A typical crossing time for a sensor platform is 10–30 s (an 8 m web, 60 cm/s). The sensor platform scans across the paper web and continuously measures paper characteristics from edge to edge.
It is an environmental KPI parameter in paper making. Acidic paper made from wood-based pulp that still contains lignin will deteriorate over time by becoming brittle and turning yellow. [1] For document preservation, acid-free papers are therefore gaining popularity and have pH of 7 or slightly higher.
A substitute check (also called an Image Replacement Document or IRD) [1] is a negotiable instrument that is a digital reproduction of an original paper check.As a negotiable payment instrument in the United States, a substitute check maintains the status of a "legal check" in lieu of the original paper check.
Download QR code; In other projects Appearance. move to sidebar hide File; File history ... MIME type: application/pdf) This is a file from the Wikimedia Commons.
A circular filter paper is taken and the sample is deposited at the center of the paper. After drying the spot, the filter paper is tied horizontally on a Petri dish containing solvent, so that the wick of the paper is dipped in the solvent. The solvent rises through the wick and the components are separated into concentric rings.
Weighing paper can be folded into different shape depending on its uses. Origami pouch: Origami pouch is a pocket-like shaped weighing paper that can be usually used for handling powdery, slippery samples. Weighing boat: Weighing boat is a box-like folded weighing paper that can be usually used for handling solid, gunky samples. origami pouch ...