Tipo de
microorganismo |
Límite permisible |
Mesofílicos
aerobios |
<10 UFC/ 100 mL |
Coliformes
totales |
<10 UFC/ 100 mL |
Coliformes
Fecales (E.Coli) |
Ausencia en 100 mL |
Pseudomonas aeruginosa |
Ausencia en 100 mL |
Parámetro |
Límite permisible |
Unidades |
Método fijado por: |
Conductividad |
<1.0
|
µmhos/cm
|
NMX-AA-093-2000
|
Resistividad |
>1.0
|
Mohms-cm
|
-
|
pH |
5-7
|
-
|
FEUM 11ª. Edición
|
Sílice (SiO2) |
<0.1
|
ppm
|
NMX-AA-075-1982
|
Dureza (CaCO3) |
<0.0
|
ppm
|
NMX-AA-072-SCFI-2001
|
Cloruros (Cl-) |
<1.0
|
ppm
|
FEUM 11ª. Edición
|
Cloro Residual |
0.0
|
ppm
|
NMX-AA-108-2001
|
Metales pesados (Pb) |
<0.01
|
ppm
|
NMX- AA-051-SCFI-2016
|
Sulfatos (SO4) |
<0.1
|
ppm
|
NOM-041-SSA1-1993
|
Amoníaco (NH3) |
<0.01
|
ppm
|
Standard Methods for
the examination of water and waste water.
|
Dióxido de Carbono (CO2) |
<1.0
|
ppm
|
Standard Methods for
the examination of water and waste water.
|
Sodio (Na+) |
<0.1
|
ppm
|
Standard Methods for
the examination of water and waste water.
|
Sustancias oxidables |
>60
|
Min.
|
FEUM 11ª. Edición
|
: