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  REVERSE-OSMISIS WATER

  REPORT OF THE ANALISIS FROM INSTITUT FRESENIUS AG

   I. BIOLOGICAL PARAMETR

Namber of bacterial 

colonies in 1 ml

after 20 ± 4 h.

after 44 ± 4 h.

after 4 days

Nutrient medium by 20°C

0

0

0

Nutrient medium by 37°C

0

0

0



Indicator microbes such as escheria coli and coliform bacteria are below detectable levels.


II. CHEMICAL PARAMETR

Parameter

symbol

boundary concentration,

mg/l

result concentration, 

mg/l

Arsenic

As

0,01

< 0,001

Lead

Pb

0,04

< 0,005

Cadmium

Cd

0,005

< 0,0005

Chromium

Cr

0,05

< 0,001

Cyanide

CN

0,05

-

Fluoride

F

1,5

< 0,2

Nikel

Ni

0,05

< 0,02

Nitrat

NO3

50

0,3

Nitrit

NO2

0,1

< 0,005

Mercury

Hg

0,001

< 0,0002



Multi-ring aromatic hydrocarbons and chloro-organic compounds were not found.
General evaluation of water:      In accordance with German norms concerning mineral and table water, the water from the firm R.O. Quality Water GmbH is seen as perfect.

III. PHYSICAL-CHEMICAL PARAMETR


Electrical conductivity

µS/cm

8

DIN EN 27888

CATIONS

Natrium (Na)

mg/l

1,4

DIN EN ISO 11885

Pothassium (K)

mg/l

0,3

DIN EN ISO 11885

Ammonium (NH4)

mg/l

< 0,02

DIN EN ISO 11732

Magnesium (Mg)

mg/l

0,1

DIN EN ISO 11885

Calcium (Ca)

mg/l

0,2

DIN EN ISO 11885

Iron (Fe)

mg/l

< 0,005

DIN EN ISO 11885

ANIONS

Chloride (Cl)

mg/l

< 1,0

DIN 38405-1-2

Sulpfat (SO4)

mg/l

< 1,0

DIN EN ISO 10304-1

Hydrogen carbonate (HCO3)

mg/l

5,0

DEV D8

Carbonate (CO3)

mg/l

< 3,0

DEV D8



The sum of the dissolved minerals substances is 7 mg/l. pH = 6,8.





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