Hach Ammonia Ionic Strength Adjustor (ISA) Powder Pillows, pk/100, 4447169
Mfr Part # 4447169
Product # 702082
Nitrogen Standards, ISA & Buffers
In water and wastewater testing, nitrogen standards, ionic strength adjusters (ISAs), and buffers serve critical but distinct functions for accurate analysis. Nitrogen standards provide known concentrations for calibrating instruments like spectrophotometers and ion-selective electrodes (ISEs) to quantify ammonia, nitrate, nitrite, and total nitrogen, establishing baselines for assessing water quality and treatment efficiency. ISAs equalize ionic strength between standards and samples when using ISEs, which measure ion activity rather than true concentration; by maintaining constant activity coefficients, ISAs ensure measured signals directly correlate with target ion concentrations, improving accuracy in complex matrices like wastewater. Buffers maintain stable pH during analytical procedures, which is essential because many chemical reactions and enzyme activities are pH-sensitive; they calibrate pH meters with precisely known pH values and optimize wastewater treatment processes by controlling influent pH to enhance biological activity, prevent corrosion, and improve chemical treatments like coagulation and disinfection.
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56 Products
Core & Main Ammonia Standard, 1.0 ppm as N, 1 L
Mfr Part # AS1001-Q
Product # 707324
Core & Main Ammonia Standard, 10ppm as N, 1 L
Mfr Part # AS1010-Q
Product # 706914
Core & Main Ammonia Standard, 100ppm as N, 1 L
Mfr Part # AS1100-Q
Product # 706922
Hach Nitrate Standard Solution, 10 mg/L as NO3-N (NIST), 500 mL, 30749
Mfr Part # 30749
Product # 700618
Core & Main Ammonia Standard, 1.0 ppm as N, 500 mL
Mfr Part # AS1001-P
Product # 707323
Core & Main Ammonia Standard, 1000ppm as N, 500 mL
Mfr Part # AS1000-P
Product # 706905
Core & Main Ammonia Standard Solution as N, 500 mL
Mfr Part # AS1010-P
Product # 706913
Core & Main Ammonia Standard, 20ppm as N, 1 L
Mfr Part # AS1020-Q
Product # 706916
Core & Main Ammonia Standard, 100ppm as N, 500 mL
Mfr Part # AS1100-P
Product # 706921
Core & Main Ammonia Standard, 2ppm as N, 1 L
Mfr Part # AS1002-Q
Product # 706908
Core & Main Ammonia Standard, 0.2 ppm as N, 1 L
Mfr Part # AS1202-Q
Product # 706904
Core & Main Ammonia ISA Buffer, 500 mL
Mfr Part # AM9000-P
Product # 706901
Core & Main Nitrate Standard as N, 1.0 mg/L (ppm), 500 mL
Mfr Part # NS4601-P
Product # 707103
Core & Main Nitrate Standard as N, 10.0 mg/L (ppm), 500 mL
Mfr Part # NS4610-P
Product # 707107
Core & Main Nitrate Standard as N, 100 mg/L (ppm), 1 L
Mfr Part # NS4700-Q
Product # 707110
Core & Main Nitrate Standard as N, 10.0 mg/L (ppm), 1 L
Mfr Part # NS4610-Q
Product # 707108
Core & Main Nitrate Standard as N, 1.0 mg/L (ppm), 1 L
Mfr Part # NS4601-Q
Product # 707104
Hach Nitrite Standard Solution, Stock, 250 mg/L as N, 500 mL, 2340249
Mfr Part # 2340249
Product # 701451
Hach Nitrate Standard Solution, 100 mg/L, 500 mL, 194749
Mfr Part # 194749
Product # 700807
Hach Nitrate Ionic Strength Adjustor Powder Pillows - pk/100, 2984799
Mfr Part # 2984799
Product # 702043
Core & Main Nitrate ISA Buffer, 500 mL
Mfr Part # NB3095-P
Product # 707368
Core & Main Ammonia ISA Buffer, 1 L
Mfr Part # AM9000-Q
Product # 706902
Core & Main Ammonia Standard, 3ppm as N, 500 mL
Mfr Part # AS1003-P
Product # 706909
Core & Main Ammonia Standard, 50ppm as N, 1 L
Mfr Part # AS1050-Q
Product # 706920
Core & Main Ammonia Standard, 20ppm as N, 500 mL
Mfr Part # AS1020-P
Product # 706915
Core & Main Ammonia Standard, 5ppm as N, 500 mL
Mfr Part # AS1005-P
Product # 706911
Core & Main Ammonia Standard, 5ppm as N, 1 L
Mfr Part # AS1005-Q
Product # 706912
Core & Main Ammonia Standard, 2ppm as N, 500 mL
Mfr Part # AS1002-P
Product # 706907
Core & Main Ammonia Standard, 30ppm as N, 1 L
Mfr Part # AS1030-Q
Product # 706918
Core & Main Borate Buffer Solution, 1 L
Mfr Part # BB6585-Q
Product # 706945
Core & Main Ammonia Standard, 3ppm as N, 1 L
Mfr Part # AS1003-Q
Product # 706910
Core & Main Ammonia Standard, 50ppm as N, 500 mL
Mfr Part # AS1050-P
Product # 706919
Core & Main Ammonia Standard, 0.2 ppm as N, 500 mL
Mfr Part # AS1202-P
Product # 706903
Core & Main Ammonia Standard, 1000ppm as N, 1 L
Mfr Part # AS1000-Q
Product # 706906
Core & Main Ammonia Standard Solution as N, 500 mL
Mfr Part # AS1030-P
Product # 706917
Core & Main Nitrate Standard as N, 100 mg/L (ppm), 500 mL
Mfr Part # NS4700-P
Product # 707109
Core & Main Nitrate ISA Buffer, 1 L
Mfr Part # NB3095-Q
Product # 707113
Core & Main Nitrate Standard as N, 1000 mg/L (ppm), 500 mL
Mfr Part # NS4750-P
Product # 707111
Core & Main Nitrate Standard as N, 2.0 mg/L, 1 L
Mfr Part # NS4602-Q
Product # 707106
Core & Main Nitrate Standard as N, 1000 mg/L (ppm), 1 L
Mfr Part # NS4750-Q
Product # 707112
Core & Main Nitrate Standard as N, 2.0 mg/L, 500 mL
Mfr Part # NS4602-P
Product # 707105
Thermo Scientific Orion ISE Calibration Standards, 1000 ppm Ammonia Standard, 475 mL, 951007
Mfr Part # 951007
Product # 705981
Thermo Scientific Orion Fluoride ISE Calibration Standard, 100 ppm, 475 mL, 940907
Mfr Part # 940907
Product # 705990
Thermo Scientific Orion ISE Calibration Standards, 100 ppm Ammonia Standard, 475 mL, 951207
Mfr Part # 951207
Product # 705980
Hach Borate Buffer Solution, 1 L, 1470953
Mfr Part # 1470953
Product # 701049
Hach Nitrate Standard Solution, 1000 mg/L, 500 mL, 1279249
Mfr Part # 1279249
Product # 700931
Hach Nitrate Ionic Strength Adjustor (ISA) Buffer Solution, 500 mL, 2488349
Mfr Part # 2488349
Product # 701632
Hach Nitrate Ionic Strength Adjustor (ISA) Powder Pillows, pk/100, 4456369
Mfr Part # 4456369
Product # 702088
Hach Ammonium Ionic Strength Adjustor (ISA) Powder Pillows, pk/100, 2980699
Mfr Part # 2980699
Product # 702042
Hach Ammonia Standard Solution, 100 mg/L as NH3-N, 500 mL, 2406549
Mfr Part # 2406549
Product # 701523
Hach Nitrate Standard Solution, 1 mg/L, 500 mL, 204649
Mfr Part # 204649
Product # 700825
Hach Ammonia Standard Solution, 1 mg/L as NH3-N, 500 mL, 189149
Mfr Part # 189149
Product # 700796
Hach Ammonia Standard Solution, 1000 mg/L as NH3-N, 1 L, 2354153
Mfr Part # 2354153
Product # 701481
Hach Ammonia Standard Solution, 10 mg/L as NH3-N, 500 mL, 15349
Mfr Part # 15349
Product # 700567
Hach Ammonia Ionic Strength Adjustor (ISA), Solution, 500 mL, 2824349
Mfr Part # 2824349
Product # 701950
