• Fully automatic operation
• High purity pyrogen free output
• Low temperature distillate
• Operates from any raw water supply
• Reservoir level control
• Simple conversion to pre-treated feed
• Supplied with wall mounting bracket
• Safety features allow unattended operation
• Simple to clean

Specifications

Additional Models

Notes

*Conductivity and resistivity are affected by the presence of dissolved carbon dioxide. All figures given in this catalogue are based on tests carried out on the still output at 20°C and free from carbon dioxide. The pH of distilled water.

Pure water, whether from a still, deioniser or reverse osmosis system, is an excellent solvent and will quickly dissolve carbon dioxide from the air to form a very dilute solution of carbonic acid. In a water still this solution can form as the steam liquifies in the condenser, resulting in a distillate output with a pH of 5 - 6.5. This is a normal level which has little effect on most laboratory procedures. A slightly acidic pH value does not mean that the water is grossly contaminated as a carbon dioxide level of less than one part per million will cause a pH of 5. If necessary the carbon dioxide may be removed by boiling the water. It is then vital to protect the water from the air otherwise the carbon dioxide will be re-absorbed quickly.