1 AR-The standard Mallinckrodt grade of analytical reagents; suitable for laboratory and general use. 2  If the reagent also meets the requirements of the American Chemical Society Committee on Analytical Reagent, it will be denoted as an AR (ACS) reagent.
Clint Eastwood (May 31st, 1930), the American actor, director and producer has won 4 Oscars:-1992: Oscar to the Best Director and Oscar to the Best Picture for 'Unforgiven'.-1992: Oscar to the Best Director and Oscar to the Best Picture for 'Million Dollar Baby'.
Clint Eastwood has been nominated for ten Oscars and won four. In 1993 he won an Oscar for Best Director and another for Best Picture for his movie Unforgiven. In 2005 he â¦ won two more Oscars for Best Picture and Best Director for his movie Million Dollar Baby.