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  2. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    At 1 ppm the solution is a very pale yellow. As the concentration increases the colour becomes a more vibrant yellow, then orange, with the final 10,000 ppm a deep red colour. In science and engineering , the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities , e.g. mole fraction or ...

  3. Total dissolved solids - Wikipedia

    en.wikipedia.org/wiki/Total_dissolved_solids

    Total dissolved solids (TDS) is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid in molecular, ionized, or micro-granular (colloidal sol) suspended form. TDS are often measured in parts per million (ppm). TDS in water can be measured using a digital meter. [1]

  4. PPM - Wikipedia

    en.wikipedia.org/wiki/PPM

    Pashtun Tahafuz Movement (PTM), also known as the Pashtun Protection Movement (PPM), a human rights movement in Pakistan for the Pashtun people; People's Monarchist Party (Portugal) (Portuguese: Partido Popular Monárquico), a Portuguese political party; People's Progressive Movement (Cayman Islands) Progressive Party of Maldives

  5. List of email subject abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_email_subject...

    Used at the end of the subject when the entire content of the email is contained in the subject and the body remains empty. This saves the recipient's time because they then do not have to open the message. 1L – One Liner. Used at the beginning of the subject when the subject of the email is the only text contained in the email.

  6. Wikipedia:Glossary - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Glossary

    To change the subject matter of an article, a template or (most frequently) a category to one that is more acceptable for editorial or encyclopedic purposes. If by doing so the subject area is broadened, the term upscope is sometimes used. Retarget See § Repoint. Retired Describes an editor who has left Wikipedia. See Wikipedia:Retiring.

  7. Subject-matter expert - Wikipedia

    en.wikipedia.org/wiki/Subject-matter_expert

    A domain expert is frequently used in expert systems software development, and there the term always refers to the domain other than the software domain. A domain expert is a person with special knowledge or skills in a particular area of endeavour [8] (e.g. an accountant is an expert in the domain of accountancy).

  8. Subject matter - Wikipedia

    en.wikipedia.org/wiki/Subject_matter

    Subject matter, in general, is anything which can be content for some theory. Subject matter may refer to: Patentable subject matter (or statutory subject matter), defining whether patent protection is available; Subject-matter jurisdiction, determining the kinds of claims or disputes over which a court has jurisdiction

  9. Acronym - Wikipedia

    en.wikipedia.org/wiki/Acronym

    The name of NASA is an acronym that expands to National Aeronautics and Space Administration.. An acronym is a type of abbreviation consisting of a phrase whose only pronounced elements are the initial letters or initial sounds of words inside that phrase.