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A2 is half the size of a sheet of A1, and so forth. Common sizes used in the office and the home are A4 and A3 (A3 is the size of two A4 sheets). The density of paper ranges from 250 kg/m 3 (16 lb/cu ft) for tissue paper to 1 500 kg/m 3 (94 lb/cu ft) for some specialty paper. Printing paper is about 800 kg/m 3 (50 lb/cu ft). [22]
Modern coffee filters of paper are made from about 100 g/m 2 crêped paper. The crêping allows the coffee to flow freely between the filter and the filtration funnel. [2] The raw materials for the filter paper are coarse long fiber, often from fast growing trees. For example, Melitta uses up to 60% of bambus in their filters since 1998. [3]
Many general-purpose office papers of weights around 21 to 27 lb (80–100 g/m 2) have been reformulated to work equally well with both inkjet and laser printers. However, this category of paper is only suitable for printing text, because the ink load is light.
VHS (Video Home System) [1] [2] [3] is a standard for consumer-level analog video recording on tape cassettes, introduced in 1976 by the Victor Company of Japan (JVC). It was the dominant home video format throughout the tape media period throughout the 1980s and 1990s. [4] [5]
The United States Environmental Protection Agency (EPA) has found that recycling causes 35% less water pollution and 74% less air pollution than making virgin paper. [19] Pulp mills can be sources of both air and water pollution, especially if they are producing bleached pulp. Modern mills produce considerably less pollution than those of a few ...
The following table is adapted from the scale of the American Library Association, [1] [9] which uses a basis sheet of 19-by-25-inch (483 by 635 mm) [10] which is, confusingly if not explained by the source, half the text/book stock sheet of 25-by-38-inch (635 by 965 mm), and in which size refers to the dimensions of the cover (trimmed pages ...
Front of an envelope mailed in the U.S. in 1906, with a postage stamp and address Back of the above envelope, showing an additional receiving post office postmark. An envelope is a common packaging item, usually made of thin, flat material.