Coolant & DEF Testing Services
Protect Your Engines & Reduce Emissions with Expert Testing
Comprehensive Coolant & DEF Analysis
At Petrolabs India Pvt. Ltd., we provide specialized testing services for engine coolants and Diesel Exhaust Fluid (DEF/AdBlue) to ensure optimal engine performance, longevity, and environmental compliance.
Our NABL-accredited laboratory uses advanced testing methods to analyze coolant condition, detect contamination, and verify DEF quality as per international standards.
Engine Protection
Prevent overheating and corrosion
DEF Quality Assurance
ISO 22241 compliant testing
Performance Analysis
Detailed freeze point & pH testing
Our Testing Services
Specialized analysis for coolants and DEF to ensure peak performance and compliance
Key Testing Parameters
Freeze Point / Boiling Point
Ensures coolant provides protection in extreme temperatures
pH Value
Monitors acidity/alkalinity to prevent corrosion
Reserve Alkalinity
Measures coolant's ability to neutralize acids
Glycol Concentration (%)
Verifies proper freeze and boil-over protection
Chloride Content
Detects contamination that causes corrosion
Sulfate Content
Identifies harmful chemical contamination
Corrosion Inhibitors
Ensures protective additives are present
Total Dissolved Solids (TDS)
Measures overall coolant contamination
Applications & Industries
Key Testing Parameters
Urea Content (%)
Must be 32.5% ± 0.7% for proper NOx reduction
Density @ 20°C
Verifies correct formulation and purity
Refractive Index
Confirms urea concentration accuracy
pH Value
Ensures DEF is within acceptable range (9.0-11.0)
Alkalinity as NH₃
Detects ammonia contamination
Biuret Content
Low biuret prevents SCR catalyst damage
Insoluble Matter
Ensures DEF is free from particles
Metals (Na, K, Ca, Mg, Fe, Cu, Zn, Cr, Ni, Al, P)
Heavy metal contamination can damage SCR systems
Compliance Standards
ISO 22241-1, ISO 22241-2, ISO 22241-3
Applications & Industries
Why Test Coolant & DEF?
Regular testing protects your investment and ensures compliance
Prevent Engine Damage
Detect contamination and degradation before costly failures occur
Reduce Operating Costs
Optimize coolant life and avoid unnecessary replacements
Extend Equipment Life
Proper coolant maintenance increases engine longevity
Meet Emission Standards
Ensure DEF quality for BS-VI and Euro-6 compliance
Frequently Asked Questions
Common questions about coolant and DEF testing
Automotive coolants should be tested annually or every 50,000 km. Heavy-duty and industrial equipment should be tested every 6 months or 1,000 operating hours.
Coolant degrades due to high temperatures, contamination (dirt, oil, fuel), oxidation, and depletion of corrosion inhibitors over time.
DEF (Diesel Exhaust Fluid) is a urea-based solution used in SCR systems to reduce NOx emissions in diesel engines. Poor quality DEF can damage the SCR system and cause non-compliance with emission standards.
Yes. Contaminated or poor-quality DEF can clog injectors, damage the SCR catalyst, and trigger engine de-rating or shutdown.
Yes, we test coolants for passenger vehicles, commercial trucks, construction equipment, marine engines, and industrial machinery.
We test DEF as per ISO 22241 standards, which specify quality requirements for urea content, purity, and contaminants.
Yes, we analyze both used (in-service) coolant to assess condition and new coolant to verify manufacturer specifications.
Standard coolant and DEF testing typically takes 3-5 business days. Expedited testing is available upon request.
Get Your Coolant & DEF Tested Today
Protect your engines from overheating, corrosion, and ensure emission compliance with our expert testing services.