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  2. Orders of magnitude (mass) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(mass)

    mg: milligram: 10 3 g kg: kilogram: 10 −6 g μg: microgram (mcg) 10 6 g Mg megagram 10 −9 g ng: nanogram: 10 9 g Gg gigagram 10 −12 g pg picogram 10 12 g Tg teragram 10 −15 g fg femtogram 10 15 g Pg petagram 10 −18 g ag attogram 10 18 g Eg exagram 10 −21 g zg zeptogram 10 21 g Zg zettagram 10 −24 g yg yoctogram 10 24 g Yg yottagram

  3. Fentanyl - Wikipedia

    en.wikipedia.org/wiki/Fentanyl

    The intravenous dose causing 50% of opioid-naive experimental subjects to die (LD 50) is "3 mg/kg in rats, 1 mg/kg in cats, 14 mg/kg in dogs, and 0.03 mg/kg in monkeys." [ 98 ] The LD 50 in mice has been given as 6.9 mg/kg by intravenous administration, 17.5 mg/kg intraperitoneally, 27.8 mg/kg by oral administration. [ 99 ]

  4. Chemical symbol - Wikipedia

    en.wikipedia.org/wiki/Chemical_symbol

    Current symbol is Mg. [nb 1] Ms: Masrium: 88: Discredited claim to discovery of radium. [nb 2] Ms: Masurium: 43: Disputed claim to discovery of technetium. [nb 2] Ms: Mosandrium: 65: Smith wrongly believed mosandrium to be a new element. Was actually terbium. Mv: Mendelevium: 101: Current symbol is Md. [nb 1] Ng: Norwegium: 72: Discredited ...

  5. Cannabis drug testing - Wikipedia

    en.wikipedia.org/wiki/Cannabis_drug_testing

    Delta 9 THC is the parent compound. If a saliva sample is tested in a lab, the detection level can be as low as 0.5 ng/mL (up to 72 hours after intake). [24] Per National Institute on Drug Abuse saliva drug testing provides a reasonable alternative to other drug testing methods. [25]

  6. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    Therefore, it is common to equate 1 kilogram of water with 1 L of water. Consequently, 1 ppm corresponds to 1 mg/L and 1 ppb corresponds to 1 μg/L. Similarly, parts-per notation is used also in physics and engineering to express the value of various proportional phenomena.

  7. MG Midget - Wikipedia

    en.wikipedia.org/wiki/MG_Midget

    ADO34 was the name of a project active between 1960 and 1964 that aimed to develop a front-wheel drive Mini-based roadster as a possible new MG Midget or Austin-Healey Sprite. Following the launch of the MG Midget in 1961, it was considered as an MG Midget or Austin Healey Sprite replacement. [10] This Pininfarina project was cancelled in about ...

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  9. Grain (unit) - Wikipedia

    en.wikipedia.org/wiki/Grain_(unit)

    64.79891 mg A grain is a unit of measurement of mass , and in the troy weight , avoirdupois , and apothecaries' systems , equal to exactly 64.798 91 milligrams . It is nominally based upon the mass of a single ideal seed of a cereal .