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ORGANIC CARBON, TOTAL, Mid Range,
Method Performance
Precision
Estimated Detection Limit
Use Method Number 10173 to test TOC levels below 15 mg/L C.
Sensitivity
At mid-range, the sensitivity, expressed as the concentration change per 0.010 absorbance
change, is 1.9 mg/L C.
Interferences
The following have been tested for interference and found not to interfere up to the indicated
levels:
mg/L C
15
50
75
115
150
Table 1 Non-interfering Substances
Substance
Aluminum
Ammonia Nitrogen
ASTM Wastewater
Bromide
Bromine
Calcium
Chloride
Chlorine
Chlorine Dioxide
Copper
Cyanide
Iodide
Iron (II)
Iron (III)
Magnesium
Manganese (VII)
303
continued
95% Confidence Limits
± 5 mg/L C
± 6 mg/L
± 7 mg/L
± 4 mg/L
± 6 mg/L
Maximum Level Tested
10 mg/L
1000 mg/L as N
No effect
500 mg/L Br
25 mg/L Br
2
2000 mg/L as CaCO
3
1500 mg/L
10 mg/L Cl
2
6 mg/L ClO
2
10 mg/L
10 mg/L CN
50 mg/L
10 mg/L
10 mg/L
2000 mg/L as CaCO
3
1 mg/L
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