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2. Grammage - Wikipedia

   en.wikipedia.org/wiki/Grammage

   Grammage. Grammage and basis weight, in the pulp and paper industry, are the area density of a paper product, that is, its mass per unit of area. Two ways of expressing grammage are commonly used: Expressed in grams (g) per square metre (g/m 2 ), regardless of its thickness ( caliper ). [ 1] This is the measure used in most parts of the world.

3. Units of paper quantity - Wikipedia

   en.wikipedia.org/wiki/Units_of_paper_quantity

   15 reams of paper. A ream of paper is a quantity of sheets of the same size and quality. International standards organizations define the ream as 500 identical sheets. [1] [2] [Note 2] This ream of 500 sheets (20 quires of 25 sheets) is also known as a 'long' ream, and is gradually replacing the old value of 480 sheets, now known as a 'short' ream.

4. Paper - Wikipedia

   en.wikipedia.org/wiki/Paper

   Paper is a thin sheet material produced by mechanically or chemically processing cellulose fibres derived from wood, rags, grasses, or other vegetable sources in water, draining the water through a fine mesh leaving the fibre evenly distributed on the surface, followed by pressing and drying. Although paper was originally made in single sheets ...

5. Paper size - Wikipedia

   en.wikipedia.org/wiki/Paper_size

   It has the height of Canadian P4 paper (215 mm × 280 mm, about 81⁄2 in × 11 in) and the width of international A4 paper (210 mm × 297 mm or 8.27 in × 11.69 in), i.e. it uses the smaller value among the two for each side. The table shows how this format can be generalized into an entire format series.

6. Paper density - Wikipedia

   en.wikipedia.org/wiki/Paper_density

   Paper density. Weighing scale to determine paper weight. Paper density is a paper product's mass per unit volume. The density can be calculated by dividing the grammage of paper (in grams per square metre or "gsm") by its caliper (usually in micrometres, occasionally in mils ). [ 1]

7. Duplicating machines - Wikipedia

   en.wikipedia.org/wiki/Duplicating_machines

   Duplicating machines were the predecessors of modern document-reproduction technology. They have now been replaced by digital duplicators, scanners, laser printers and photocopiers, but for many years they were the primary means of reproducing documents for limited-run distribution. The duplicator was pioneered by Thomas Edison and David ...