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Expressed in grams (g) per square metre (g/m 2), regardless of its thickness [1] (known as grammage). This is the measure used in most parts of the world. It is often notated as gsm on paper product labels and spec sheets. Expressed in terms of the mass per number of sheets of a specific paper size (known as basis weight).
It has the height of Canadian P4 paper (215 mm × 280 mm, about 8 + 1 ⁄ 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.
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] The "ISO 534:2011, Paper and board — Determination of thickness, density and specific volume" indicates that the paper density is expressed in grams per cubic centimeter (g/cm ...
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.
For the dough, use 2 cups of whole wheat flour, along with 1 teaspoon of active dry yeast to assist fermentation. For texture enrichment, a ½ teaspoon of salt is added to the dough for seasoning and 2 teaspoons of ghee. [1] For the filling, it needs ½ teaspoon of red chili powder for heat, 1 inch of grated ginger, and 2 green chilies, finely ...
According to ISO standards, paperboard is a paper with a grammage above 250 g/m 2, but there are exceptions. [1] Paperboard can be single- or multi-ply. Paperboard can be easily cut and formed, is lightweight, and because it is strong, is used in packaging. Another end-use is high quality graphic printing, such as book and magazine covers or ...
A paper for air filters needs to be very porous and have a weight of 100–200 g/m 2. Normally particularly long fibrous pulp that is mercerised is used to get these properties. The paper is normally impregnated to improve the resistance to moisture. [1]: 113 Some heavy duty qualities are made to be rinsed and thereby extend the life of the filter.
Asia Pulp & Paper was founded as Tjiwi Kimia by Eka Tjipta Widjaja who at the time was a refiner of coconut oil. In 1972 he started Pabrik Kertas Tjiwi Kimia along with Taiwanese investors with the purpose of making paper. [1]