BS 1170:1983

What is BS 1170- Recommendations for treatment of water for marine boilers about?  

BS 1170 gives recommendations on the treatment of water for marine boilers with working pressures up to 130 bar.  

BS 1170 applies to six groups of boilers, classified according to their operating pressures as follows: 

Group 1. Boilers up to 17.5 bar 

Group 2. Boilers from 17.5 bar to 31 bar 

Group 3. Boilers from 31 bar to 42 bar 

Group 4. Boilers from 42 bar to 60 bar 

Group 5. Boilers from 60 bar to 80 bar 

Group 6. Boilers from 80 bar to 130 bar 

BS 1170 gives detailed information on each of these groups. 

Note: BS 1170 is concerned with water conditions for boilers and associated plants, but is not intended to cover all details of the maintenance of equipment 

Who is BS 1170- Recommendations for treatment of water for marine boilers for? 

BS 1170 on recommendations on the treatment of water for marine boilers is useful for: 

• Ship’s chief engineers  
• Inspection personnel  
• Maintenances and service personnel  

Why should you use BS 1170- Recommendations for treatment of water for marine boilers?  

To secure uniformity and continuity of water treatment throughout a fleet of vessels, it is important to organize a system of supervision and control on lines like those suggested in BS 1170. It is advisable to secure the cooperation of water treatment consultants for this purpose. 

BS 1170 provides you guidance on the sources of water and limiting impurities for various groups of boilers. BS 1170 guides you on chemical cleaning and provides you with objectives of water treatment. 

BS 1170 guides you on the treatment of feed water and the treatment of water in the boiler. BS 1170 guides you on the preservation of idle boilers. BS 1170 helps you control boiler water and feed water treatment under all normal working conditions. 

What’s changed since the last update?  

BS 1170:1983 supersedes BS 1170:1968 which is withdrawn. BS 1170:1983  includes some technical changes with respect to BS 1170:1968. These include: 

• Boilers operating at pressures up to 130 bar1) by adding the sixth range of pressure to the five previously dealt with 
• For boilers operating above 130 bar, the control of treatment and the requirements for the limits of impurities in the feed water would be even more stringent 
• Other changes made for this edition include considerable expansion of the glossary of terms, an explanation of the concepts of pH value, acidity and alkalinity, the inclusion of a section on safe handling of chemicals, new ship-board methods for determination of copper, iron, silica and suspended solids, 16 additions to the list of reagents, and the inclusion of a brief outline on on-line instrumentation and automation