-
Products
- Lab Instruments
-
Lab Meters and Probes
Calibration Standards Sension+ Meters and ProbesOther Meters and Probes Radiometer Probes
- Chemistries, Reagents, and Standards
-
Online Analyzers
Ammonium Analysers Ammonia Monochloramine Analyzers Chlorine Analyzers
- CL17sc
- CL10sc Amperometric
- 9184 sc Amperometric
- Ultra Low Range CL17sc Colorimetric Chlorine Analyser
EZ Series Analysers- Iron
- Aluminium
- Manganese
- Phosphate
- Chloride
- Cyanide
- Fluoride
- Sulphate
- Sulphide
- Arsenic
- Chromium
- Copper
- Nickel
- Zinc
- Ammonium
- Total Nitrogen
- Total Phosphorus
- Phenol
- Volatile Fatty Acids
- Alkalinity
- ATP
- Hardness
- Toxicity
- Sample Preconditioning
- Boron
- Colour
- Nitrate
- Nitrite
- Silica
- Hydrogen Peroxide
- Sodium
- EZ Series Reagents
- Flow and Collections
-
Online Sensors and Controllers
pH & ORP Sensors
- 12mm pH/ORP
- 8362 sc High Purity
- Combination pH/ORP
- Differential pH
- Digital Differential ORP
- Digital Differential pH
- LCP ORP
- LCP pH
Conductivity Sensors- 3400 Analogue Contacting
- 3400 Digital Contacting
- 3700 Analogue Inductive
- 3700 Digital Inductive
- 9523 Cation Conductivity
- 9525 DCCP System
- Automated Lab Systems
-
Multiparameter Online Panels
Multi-Parameter Event Detection and Security
- Claros Water Intelligence System
- Test Kits & Strips
-
Microbiology
Prepared Media InstrumentsDehydrated Media KitsLabware
- Accessories
- Funnels, Pumps & Manifolds
- Microbiology Filters
- Petri Dishes & Accessories
- Sampling Bags
- Vials, Tubes, Bottles & Racks
-
Lab Equipment and Supply
ApparatusInstrumentsGeneral Lab Consumables Safety EquipmentBooks and Reference Material Glassware/Plasticware
- Samplers
-
Hach eLearning
Lab Product Training Process Product Training
- AN-ISE sc
- Amtax sc
- B3500
- B7000
- CL17sc
- Differential pH Sensor
- Filtrax Sample Filtration Systems
- LDO sc
- Nitratax sc
- Orbisphere 6110
- Phosphax sc
- SC1000
- SC200
- SC4500
- Solitax sc
- TU5300sc/TU5400sc
- Parameters
- Software Solutions
- Industries
- Support
- News & Events
Login
Recurring Orders 
Buffer Solution, pH 4.01, 1 L
- Overview
- Details
- Parameter/Reagent
- Downloads
- Accessories
- Similar Products
Parameter/Range/Product Information
| pH | Method | Range | Instr, Test Kit, etc | USEPA Compliant? |
|---|---|---|---|---|
| 8156 pH Meter Electrode Method | 0 - 14 pH | View | Y | |
| 8156 pH Meter Electrode Method | pH 8156 4.01 pH |