Tasu

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Tasū , Arabicized Tassūğ , was a Persian unit of mass ( measure of weight) and had a weight of about 0.18 grams in the Safavid period . In the 16th century, the measure changed to 0.195 grams. It was similar to the measure of Nohod (the pea), which was valid until 1935 and was then officially set at 0.2 grams.

  • 1 tasū = ¼ dāng = 1/24 miṯqāl = 0.195 grams
  • 1 Ğou (barley grain weight ) = ¼ Tasū = 1/16 Dāng = 1/96 Miṯqāl = 0.045 grams (later 0.048 grams)

The miṯqāl can be reckoned with 4.3 grams, later up to the present with 4.6 grams.

literature

  • Walther Hinz : Islamic weights and measures: converted into the metric system. EJ Brill. Leiden / Cologne 1970 Supplementary Volume 1, Issue 1, pp. 12, 24, 34 (reprint).