DEF Testing 


Frequently Asked Questions 

Amalgatech is an ISO/ A2LA accredited testing lab. Amalgatech preforms diesel exhaust fluid testing, or DEF testing services in accordance with ISO22241.
Diesel Exhaust Fluid (DEF), commonly referred to as AdBlue or Ad-Blue and standardized as ISO 22241[1] is an Aqueous Urea Solution of with 32.5% high-purity urea (AUS 32) and 67.5% deionized water. DEF is used as a consumable in Selective Catalytic Reduction (SCR) in order to lower NOx concentration in the Diesel exhaust emissions from Diesel engines.[2]The German Association of the Automotive Industry (VDA) ensures quality standards are maintained in accordance with ISO 22241 specifications.


What is Diesel Exhaust Fluid? DEF Testing?