Talk:ap

RFV discussion: June 2014–July 2015

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ap

Back in December 2013 someone questioned the existence of ap as an English adjective meaning "In or relating to the apothecaries' system of measures", but nothing more was done about it, so now I'm bringing it here. —Aɴɢʀ (talk) 22:47, 28 June 2014 (UTC)

To start off, here are a few hits in reference works: here, here, and here, and one use: here. Maybe not complete by CFI standards, but at least enough to show it wasn't made completely up. Chuck Entz (talk) 23:11, 28 June 2014 (UTC)

• 1962, Mitchell Freeman, Practical and industrial formulary, page 235:

  12 ounces ap = 1 pound ap (lb ap) = 96 drams ap = 288 scruples = 5760 grains

  Avoirdupois (avdp) Weight

• 1985, Ronald Edward Zupko, A Dictionary of Weights and Measures →ISBN

  Second, the ap scale of 20 gr to the s, 3 s to the dr, and 8 dr to the oz (again, 480 gr to the ap oz) was incorrectly used in the conversion, and the avdp lb […]

- -sche (discuss) 22:33, 7 July 2015 (UTC)

• 1939, Edward Henry Hempel, The Economics of Chemical Industries, page 235:

  = 16 ounces = 35.27396 av. oz.

  = 1.215278 troy pounds = 0.37324 ap. lb.

• 1984, Ralph J. Fessenden, ‎Joan S. Fessenden, Basic chemistry for the health sciences, page 9:

  The apothecaries' system (ap.) is different; it is based on 12 ap. oz (slightly larger than avdp. oz) to 1 ap. lb.

- -sche (discuss) 22:39, 7 July 2015 (UTC)

This looks valid, although it should probably be amended to "abbreviation of apothecaries". I've added 2 citations of ap and two of ap. above, and more are available on Google Books; av(.) and avdp(.) are also attested as abbreviations of avoirdupois. - -sche (discuss) 22:41, 7 July 2015 (UTC)