Determining the organic pollutional strength of wastewater requires robust oxidation methods to quantify the total oxygen required for chemical breakdown. Chemical Oxygen Demand (COD) Analysis provides a rapid, reliable assessment of water quality, serving as a vital counterpart to biological monitoring. This essential methodology supports advanced sample analysis and is a cornerstone for industrial environmental, soil, water, and food analysis.
Why Choose Professional COD Analysis Equipment?
Our curated collection of COD technology is designed for thermal stability, chemical resistance, and high-precision measurement:
- Durable Reaction Vessels: We stock Behr Labor-Technik RG-1 and RG-2 reaction vessels (NS 29, 100 ml), featuring accurate scale marks for consistent sample volumes.
- Efficient Condensation: Utilize Behr COD Air Coolers (LK 1, 660 mm) to maintain sample reflux during the digestion process.
- Precision Titration Tools: Explore the Behr Digital Burette DIT 50 for highly accurate manual titrations, alongside the Behr Universal Dispenser DOS 50 for reagent delivery.
- Organized Sample Management: Maintain workflow efficiency with Behr transport stands and magnetic stir bar sets specifically designed for COD digestion frames.
LabFriend supplies COD analysis equipment from the industry leaders in thermal digestion and water chemistry:
- Behr Labor-Technik: The primary provider of COD reaction glassware, air coolers, and automated titration instruments.
- Hach: A global specialist in water quality analysis, offering high-performance reagents and spectrophotometric COD solutions.
- Xylem WTW: Provides advanced instrumentation for the determination of chemical and biological oxygen demand.
- Tintometer (Lovibond): Renowned for reliable photometric water testing and thermostatic equipment.
- ROBU Glasfilter-Geräte: Supplies specialized glass components for precision filtration and separation.
Accurate COD results often rely on careful sample preparation and contaminant monitoring; to further enhance your analytical workflow, we recommend exploring these related categories:
- Biological Oxygen Demand (BOD): Complement your COD data with biological analysis using Velp or Xylem WTW OxiTop® systems.
- Oil Testing Equipment: Detect fatty or oily contaminants that can significantly impact COD results in industrial effluents.
- Centrifuge Tubes: Use LLG or Eppendorf tubes for sample clarification or pelleting solids before digestion.
- Glass-Fibre Filters: Utilize Sartorius or Hahnemühle discs to remove suspended solids for the measurement of dissolved COD.
Unsure if your workflow requires a 100 ml reaction vessel or a high-throughput digestor system? Our team provides local technical support to help you find the perfect analytical solution with fast shipping and competitive pricing.
Frequently Asked Questions
1. What is the difference between COD and BOD?
COD (Chemical Oxygen Demand) measures all organic matter that can be chemically oxidized, while BOD (Biological Oxygen Demand) measures only the organic matter that can be broken down by microorganisms.
2. Why is an air cooler (reflux) used in COD analysis?
Air coolers like the Behr LK 1 are used during the 2-hour boiling process to prevent the loss of volatile organic compounds and ensure the reaction reaches completion.
3. Can I use a digital burette for COD titration?
Yes, the Behr Digital Burette DIT 50 is specifically designed for high-precision titration tasks, allowing for faster and more accurate results compared to traditional manual burettes.
4. Are Behr reaction vessels compatible with other digestors?
Behr vessels (NS 29) are standardized for use in Behr COD heating blocks, but compatibility depends on the specific dimensions and joint sizes of your digestion unit.
