Quality Compliance

Controlled AUS32 for SCR Systems.

PROTICKS DEF is produced for buyers who need clear quality documentation, contamination discipline and standards-aligned supply.

ISO 22241 Certified

Quality controls aligned with AUS32 / DEF requirements for concentration, purity, handling and SCR compatibility.

IS 17042 Certified

Indian standard confidence for Diesel Exhaust Fluid procurement, dispatch and product documentation.

BS-IV & BS-VI Ready

Suitable for diesel vehicles and equipment using SCR technology and a dedicated DEF / AdBlue tank.

Specification at a glance

These are the limits AUS32 must meet under ISO 22241 and IS 17042. Every PROTICKS batch is tested against them, and the measured results for your specific batch appear on the certificate you can request below.

AUS32 specification limits under ISO 22241 and IS 17042
Parameter	Unit	Limit
Urea content	% by weight	31.8 to 33.2
Density at 20 C	kg/m³	1087.0 to 1093.0
Refractive index at 20 C	-	1.3814 to 1.3843
Alkalinity as ammonia	%	0.2 maximum
Biuret	% by weight	0.3 maximum
Aldehydes	mg/kg	5 maximum
Insoluble matter	mg/kg	20 maximum
Phosphate as PO₄	mg/kg	0.5 maximum
Calcium, iron, copper, zinc	mg/kg	0.2 maximum each
Chromium, nickel, aluminium	mg/kg	0.2 maximum each
Magnesium, sodium, potassium	mg/kg	0.5 maximum each
Appearance	-	Clear, colourless

The metal limits matter most. SCR catalysts work through surface chemistry, and trace metals bind to the active sites permanently. That is why the specification is set at these levels: it reflects what the hardware tolerates, not caution on the part of the standard.

Request the certificate for your batch

Quality checkpoints

32.5% high-purity urea solution
Deionized water and controlled blending
Clean filling and sealed packaging
Batch traceability and certificate support
Storage and handling guidance for customers

Downloads

Use the official product manual for technical procurement references and quality requirement language.

Download Product Manual