Hach 2107169 NitriVer 3亚硝酸盐试剂粉末PIllows，10毫升，（每包100个）

For determination of low range nitrite by the NitriVer® 3 diazotization method. 

USEPA accepted for reporting wastewater analysis using Hach Method 8507. 

Range: up to 0.30 mg/L NO2-N. 

Sample Size:10 mL. 

Pack of 100 Powder Pillows