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  2. Acid-free paper - Wikipedia

    en.wikipedia.org/wiki/Acid-free_paper

    Acid-free paper is paper that, if infused in water, yields a neutral or basic pH (7 or slightly greater). It can be made from any cellulose fiber as long as the active acid pulp is eliminated during processing. It is also lignin- and sulfur-free. [1] Acid-free paper addresses the problem of preserving documents and preserving artwork for long ...

  3. Chart of accounts - Wikipedia

    en.wikipedia.org/wiki/Chart_of_accounts

    A chart of accounts (COA) is a list of financial accounts and reference numbers, grouped into categories, such as assets, liabilities, equity, revenue and expenses, and used for recording transactions in the organization's general ledger. Accounts may be associated with an identifier (account number) and a caption or header and are coded by ...

  4. Acidic paper - Wikipedia

    en.wikipedia.org/wiki/Acidic_paper

    Acidic paper is paper which was manufactured using acidic substances. [1] Widely used since the mid-nineteenth century, its pages become yellow within years, extremely brittle over decades, and eventually unreadable in the library and archive collections intended to preserve them. [ 2 ]

  5. BAS (accounting) - Wikipedia

    en.wikipedia.org/wiki/BAS_(accounting)

    The chart is the general guideline and every user can make any amendments and personally created accounts. The governments authorities accounting led by the Swedish National Financial Management Authority [2] and the communes led by Swedish Association of Local Authorities and Regions [3] [4] have special versions with adding special accounts for their purpose.

  6. Mass deacidification - Wikipedia

    en.wikipedia.org/wiki/Mass_deacidification

    Although acid-free paper has become more common, a large body of acidic paper still exists in books made after the 1850s; this is because of its cheaper and simpler production methods. Acidic paper, especially when exposed to light , air pollution , or high relative humidity , yellows and becomes brittle over time. [ 1 ]

  7. Acid value - Wikipedia

    en.wikipedia.org/wiki/Acid_value

    In chemistry, acid value (AV, acid number, neutralization number or acidity) is a number used to quantify the acidity of a given chemical substance.It is the quantity of base (usually potassium hydroxide (KOH)), expressed as milligrams of KOH required to neutralize the acidic constituents in 1 gram of a sample.

  8. United States Permanent Paper Law - Wikipedia

    en.wikipedia.org/wiki/United_States_Permanent...

    A solution to this problem would be to implement a system where all paper was permanent paper. The second issue is the cost of permanent paper, which in 1991, cost 30% more than acidic paper, [citation needed] thus making such a system not feasible. A recommendation was made to use a cheap but still alkaline paper for all publishing and ...

  9. Paper chemicals - Wikipedia

    en.wikipedia.org/wiki/Paper_chemicals

    Paper chemicals designate a group of chemicals that are used for paper manufacturing, or modify the properties of paper. These chemicals can be used to alter the paper in many ways, including changing its color and brightness, or by increasing its strength and resistance to water. [1] The chemicals can be defined on basis of their usage in the ...

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