ALS Product catalogues WATER | Page 8

Polycyclic aromatic hydrocarbons (PAH) in drinking water
Parameter
LOQ (µg/l)
benzo(b)fluoranthene
Parameter
LOQ (µg/l)
0.02 benzo(ghi)perylene 0.02
benzo(k)fluoranthene 0.02 indeno(123cd)pyrene 0.02
benzo(a)pyrene 0.005 sum of 4 PAHs* 0.08
*Sum of PAHs without benzo(a)pyrene.
Minimum sample volume:
glass, 250 ml
Method: GC-MS
Microbiology in drinking water
Parameter
Parameter
Escherichia coli living microorganisms*
coliform bacteria colony counting at 22°C
enterococci colony counting at 36°C
Clostridium perfringens abioseston*
number of microorganisms*
*Microscopy.
Minimum sample volume:
sterile sealed glass, plastic, 500 ml
Special products in drinking water
Parameter
LOQ Sample volume
acrylamide 0.05 µg/l glass vial, 40 ml
epichlorhydrine 0.1 µg/l glass, 500 ml
pesticides see page 16 and following
radiology see page 25
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Parameter
LOQ (mg/l)
Parameter
LOQ (mg/l)
bromide 0.5 nitrate nitrogen 0.1
chloride 0.5 nitrite nitrogen 0.15
fluoride 0.5 nitrates 0.5
sulfate 0.5 nitrites 0.5
Minimum sample volume:
Method:
plastic, 250 ml
ion chromatography
Nitrogen forms
Parameter
ammonium nitrogen
LOQ (mg/l)
Parameter
LOQ (mg/l)
0.04 inorganic nitrogen 0.5
nitrate nitrogen 0.5 organic nitrogen 0.5
nitrite nitrogen 0.04 total nitrogen Kjeldahl nitrogen 0.5
1
Minimum sample volume:
plastic, 250 ml
Method: spectrophotometry
8
Product catalogue Water
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