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H-1072-66
Hach alkaline iodide-azide reagent powder pillow for Winkler DO and 300 ml sample
A-15
Alkaline-iodide azide reagent, APHA for DO, HM
A-25
Ammonium hydroxide, 1:1 volumetric solution, for cleaning silver anodes on YSI DO probes, approximately 15% as NH3, HM
A-26
Ammonium hydroxide, 3% as NH4OH, volumetric solution, HM
C-40
Copper sulfate-sulfamic acid inhibitor, APHA for DO
H-1071-66
Hach manganous sulfate powder pillow for Winkler DO and 300 ml sample
M-20
Manganous sulfate solution, APHA for DO
S-67B
Sodium sulfite, 10% w/v, "zero oxygen solution"
S-85A
Starch indicator solution, 2%, APHA for DO
H-1073-99
Hach sulfamic acid powder pillow for Winkler DO and 300 ml sample