Chapter 4
Discussion of Parameters to Be Monitored


The steam purity required for any given boiler system is dictated by the use of the steam. Steam of inadequate purity can cause deposition and corrosion in superheaters, steam lines, control valves and turbines. Steam contaminants can also adversely affect catalyst performance and product purity. The ASME “Consensus on Operating Practices for the Control of Feedwater and Boiler Water Chemistry in Modern Industrial Boilers” and “Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration Power Plants” provide steam purity targets for typical industrial uses of steam.

The purity of steam is usually monitored by measuring the cation conductivity or sodium content of condensed steam samples. In special situations, as noted in the Combined Cycle and Cogeneration document, silica and∕or cation conductivity will be measured.

  • 4.1 Steam Purity
  • 4.2 Dissolved Oxygen
  • 4.3 Iron, Copper and Hardness
  • 4.4 pH
  • 4.5 Organic Matter
  • 4.6 Silica
  • 4.7 Total Alkalinity
  • 4.8 Conductivity and Total Dissolved Solids

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In