3725009

Information

• Patent Grant
• 3725009

• References
• Source

• Patent Number

  3,725,009

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1973
  51 years ago

• CPC

  • G01N33/0013 - by a chemical reaction
  • G01N30/06 - Preparation
  • G01N31/16 - using titration
  • G01N33/0014 - by eliminating a gas
  • G01N2030/8423 - using permeable separator tubes
  • Y10T436/184 - Only hydrogen sulfide
  • Y10T436/186 - Sulfur dioxide
  • Y10T436/25125 - Digestion or removing interfering materials

• US Classifications

  • 436 - Chemistry: analytical and immunological testing
  • 250 - Radiant energy
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing