 |     |
>> Overview The French degree
• The water hardness is measured in French degree (1°F = 10 milligrams, equivalent CO3Ca) Below 10°F, "soft" water is responsible for the aggressivity of water which causes corrosions.• With the top of 25°F, "hard" water causes seal ings which deteriorate the chemical analyses, block the drains, deteriorate the cleaners and steam irons, the accumulators, the radiators, the jets, the humidifiers, make optics opaque, cause deposits on the containers of laboratory, contaminate the baths of galvanoplasty... • Correspondence of the various degrees: French 1°F = German 0,56 ° = English 0,7° = 0,2 milliequivalent litre (meq/1) |
RCS Toulon B 719 807 190 00033
Tel : 33 (0)4.94.75.23.82 - Fax : 33 (0)4.94.75.23.83 - E-mail : maxy@magic.fr
© 2005 MAXY - 83130 LA GARDE (FRANCE) / Conception INFO Service - Chilly-Mazarin / Tous droits réservés - Reproduction interdite