Biochemical Oxygen Demand (BOD) is a critical parameter for assessing water quality, particularly in wastewater management and environmental monitoring. The MACHEREY-NAGEL NANOCOLOR® BOD Tube Test offers a streamlined, reliable method for determining BOD5—biochemical oxygen demand over five days. This method eliminates the need for dilution controls, ensuring accuracy and ease of use in accordance with recognized standards.
What is the NANOCOLOR® BOD Tube Test?
The NANOCOLOR® BOD Tube Test is a photometric method for determining BOD5 in undiluted water samples. It uses the Winkler procedure, an established method for measuring dissolved oxygen. The test is compatible with MACHEREY-NAGEL photometers such as:
NANOCOLOR® Spectrophotometers
NANOCOLOR® 500 D Photometer
PF-12 Plus Photometer
Key Features of the Test
One-Step Testing:
The tube-based method simplifies sample preparation and testing by allowing direct incubation of the undiluted sample.
DIN-Standard Compliance:
The test follows DIN EN 1899-2-H52 and DIN 38409-H51 standards, ensuring global compatibility and reliability.
Wide Measuring Range:
The test covers a range of 2–3000 mg/L O2, making it suitable for diverse water samples, from river water to heavily polluted industrial wastewater.
User-Friendly Design:
The kit includes pre-measured reagents, reducing errors and increasing efficiency.
Comprehensive Testing Kit:
Each kit contains:
3 empty test tubes
BOD5 reagents (R1, R2, and R3)
Detailed instructions for precise handling and measurement
How Does the NANOCOLOR® BOD Tube Test Work?
Step 1: Sample Preparation
Adjust the sample to room temperature and ensure its pH is between 6 and 8.
Homogenize or filter the sample to remove particulates and prevent interference from algae or chlorine.
Step 2: Oxygen Measurement
Fill the test tube with the prepared sample.
Add reagents (BOD5 R1, R2, and R3) in sequence, ensuring no air bubbles are trapped.
Shake the tube and incubate the sample in the dark at 20 ± 1 °C for 5 days.
Step 3: Photometric Evaluation
Measure dissolved oxygen levels at the start (Day 0) and after incubation (Day 5) using a compatible photometer.
Step 4: BOD5 Calculation
Calculate the BOD5 value using the difference in oxygen concentration over the 5-day period.
Advantages of Using the NANOCOLOR® BOD Tube Test
Accuracy and Reliability:
The test ensures precise BOD5 measurements through photometric analysis and compliance with standard methods.
Time Efficiency:
The simplified workflow eliminates complex dilution steps, making the test quicker and easier for operators.
Versatility:
Suitable for a range of water sources, including rivers, sewage, and industrial wastewater.
Safety Protocols:
The kit includes clear hazard warnings and safety instructions, ensuring safe handling of chemicals.
Enhanced Control:
Optional accessories like nutrient mixtures and incubation sets enhance the test’s adaptability for various sample conditions.
Applications of the NANOCOLOR® BOD Tube Test
Wastewater Treatment: Monitor and optimize treatment processes by tracking oxygen demand.
Environmental Analysis: Ensure regulatory compliance by assessing water quality in rivers and lakes.
Industrial Effluents: Test and control the impact of discharged wastewater on the environment.
The MACHEREY-NAGEL NANOCOLOR® BOD Tube Test simplifies the process of BOD5 measurement, offering a user-friendly, accurate, and efficient solution for water quality analysis. With its comprehensive kit and compatibility with leading photometers, it’s an invaluable tool for environmental monitoring and wastewater management.
Ensure reliable results, streamline your testing process, and achieve compliance with this innovative solution. Contact MACHEREY-NAGEL to learn more about the NANOCOLOR® BOD Tube Test and its applications!
