wet chemistry reference News

  • ASTM A437 / A437M - 11 standard specification for stainless and alloy-steel turbine-type bolting specially heat treated for high-temperature service

    This specifications covers alloy-steel bolting material specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. The grades of steels covered here are: Grade B4B, Grade B4C, and Grade B4D. Steels of Grades B4B and B4C shall undergo heating, liquid quenching, reheating, tempering, and air or furnace cooling, respectively. ...


    By ASTM International

  • Natcore Scientists Prove Feasibility of All-Quantum-Dot Tandem Solar Cell

    A research team working under Natcore Technology Inc. (TSX VENTURE: NXT)(PINK SHEETS: NTCXF) co-founder Prof. Andrew Barron has fabricated two families of multilayer quantum dot films, one with silicon quantum dots and the other with germanium quantum dots, both of which have demonstrated the ability to produce a photo-generated current. Achieved under the Natcore joint research agreement with ...


  • The Acta Group, L.L.C. -- recent federal developments

    Synopsis Of The 2010 Congressional Mid-Term Elections: The 2010 Congressional mid-term elections will have a profound impact on policy and legislative developments of the U.S. Environmental Protection Agency (EPA), particularly as to the regulation of chemicals and pesticides. The dramatic decline in the number of elected Democratic members, especially the loss of the majority in the House of ...


    By Acta Group

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