BOD Incubator
BOD incubator for 5-day biological oxygen demand testing at 20°C ±1°C. Compliant with IS 3025, ISO 5815, and APHA 5210B standards. Get a quote.
A BOD incubator is a specialised environmental chamber that maintains precise temperature and dark conditions for the standardised 5-day Biochemical Oxygen Demand test. BOD measurement quantifies the amount of organic matter in water that can be decomposed by microorganisms, expressed in milligrams per litre (mg/L). The 20°C temperature is critical to the test procedure; deviation compromises result accuracy and regulatory compliance. Indeecon BOD incubators use refrigeration to maintain exactly 20°C ± 1°C regardless of ambient conditions, ensuring test validity across seasons and climates. Our units provide complete darkness to prevent photosynthesis interference, allowing microbes to consume dissolved oxygen accurately. BOD incubators are essential equipment for environmental monitoring, wastewater treatment plant verification, and regulatory compliance reporting.
Key Specifications
- Designed for BOD testing and incubation applications
- Stable temperature control for repeatable results
- Uniform airflow for consistent incubation conditions
- Suitable for environmental and QC laboratories
- Industrial-grade reliability for continuous use
Key Features
- Precision Temperature Control: 20°C ± 1°C maintained regardless of ambient conditions
- Refrigeration System: Hermetically sealed, low-noise compressor with R134a refrigerant
- Dark Incubation Design: Dual-door system (solid outer + optional transparent inner) prevents light interference
- Forced-Air Circulation: Balanced blower fans ensure uniform temperature distribution across all shelves
- Microprocessor PID Controller: Digital display with high/low temperature alarms and power-failure detection
- UV-C Germicidal Lamp: Optional integrated sterilisation to maintain sample integrity
- Glass Shelving: Removable and adjustable tempered glass shelves for flexible load arrangement
- Interior Lighting: LED illumination for sample visibility without opening the chamber
- Compact Footprint: Space-efficient design suitable for crowded laboratory environments
- NABL/IQ/OQ/PQ Documentation: Pre-qualified units with validation support for accredited labs
- Dark Incubation Mastery: Dual-door design (solid outer + transparent inner option) prevents photosynthesis interference while allowing operators to inspect samples without opening the chamber, ensuring BOD₅ test integrity.
- ±0.5°C Temperature Stability: Microprocessor-based PID control with refrigeration maintains precise 20°C ± 1°C across 24-hour BOD incubation cycles, meeting IS 3025 and APHA standard requirements.
- NABL-Ready Validation: Pre-configured chambers with 9-point temperature mapping, automatic IQ/OQ/PQ documentation, and power-failure alarm support ensures immediate NABL accreditation for water testing facilities.
Applications
- Municipal Wastewater Treatment Plants: Effluent quality monitoring and compliance reporting
- Industrial Effluent Labs: Factory wastewater testing for regulatory discharge permits
- Environmental Protection Agencies: Water body monitoring and pollution assessment
- NABL-Accredited Testing Labs: BOD₅ determination for third-party water quality certification
- Pharmaceutical & Food Processing: Process water quality assurance
- Research Institutions: Water quality studies and microbial biodegradation research
- River & Surface Water Monitoring: Environmental impact assessments and baseline studies
- Cooling Tower & Biofilm Labs: Microbial growth assessment in industrial water systems
Compliance Standards
- IS 3025 (Part 44) — Determination of Biochemical Oxygen Demand (BOD)
- APHA Standard Methods 5210B — Biochemical Oxygen Demand (BOD₅)
- ISO 5815-1 — Determination of Biochemical Oxygen Demand (BOD) in 5 days
- EPA Method 405.1 (USA) — Biochemical Oxygen Demand 5-Day
- CWWA Guidelines — Central & State Pollution Control Boards (India)
- NABL Accreditation — Temperature mapping and IQ/OQ/PQ validation
- ISO 9001 — Quality management systems
- ISO 14001 — Environmental management systems
Safety Features
- Over-temperature protection for safe incubation
- Compressor protection and overload safety controls (model dependent)
- Alarm indications for safe monitoring (model dependent)
Optional Features
- Data logging and temperature chart recording
- Custom shelving configuration and rack options
- Validation support and documentation assistance
- Calibration certificate support (on request)
How It Works
- Load samples on shelves with proper airflow spacing
- Set incubation temperature on the controller
- System stabilises and maintains uniform conditions
- Run incubation for required duration
- Record results and maintain traceability as per lab workflow
Frequently Asked Questions
Why must BOD testing occur at exactly 20°C?
The BOD₅ test measures organic decomposition by naturally occurring microorganisms at a standardised temperature. 20°C is established as the standard across IS 3025, APHA, and ISO methods. Any deviation affects microbial metabolic rates and skews oxygen consumption measurements, making results non-comparable to regulatory benchmarks.
Can I use a BOD incubator for other microbial testing?
Yes. Indeecon BOD incubators have adjustable temperature ranges (5°C to 60°C) suitable for yeast cultures, fungal assays, and other microbial studies. However, permanent 20°C-only models are available for dedicated BOD facilities.
How does the dark design prevent photosynthesis interference?
Algae in water samples conduct photosynthesis under light, consuming oxygen and reducing measured BOD values. The solid outer door and optional transparent inner door ensure complete darkness, preventing light-induced oxygen consumption that would corrupt BOD results.
Are Indeecon BOD incubators NABL-accreditable?
Yes. Our units come pre-mapped with 9-point temperature distribution validation and can be configured with automatic data logging for IQ/OQ/PQ documentation. Many NABL-accredited labs specify Indeecon BOD incubators as their standard equipment.
Related Guides
Continue your evaluation with the most relevant master pages, comparison guides, and technical resources for this product family.
- Calibration Equipment Guide — Dry block calibrators and liquid baths — equipment families, temperature ranges, and selection factors.
- Temperature Calibration Guide — Traceability, uncertainty, and temperature calibration fundamentals.
- Calibration Selection Guide — Select equipment by range, stability, and application constraints.
- Industrial Calibration Process — How calibration fits into validation, auditability, and QA systems.