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Reference number : ISO 22241-3:2008 (E)
ISO ( the International Organization for Standardization ) is a worldwide federation of national standards bodies . The work of preparing International Standard is normally carried out through ISO technical committees . The International Standard are drafted in accordance with the rules given in the ISO / IEC Directives .
ISO 22241 consists of four parts ;
- 1. Quality requirements
- 2. Test methods
- 3. Handing ,transportation and storage
- 4. Refilling interface
A total of 19 indicators of urea are required in ISO 22241 and DIN 70070 standards.
Urea 32,5 % - solution in water
Min
Max
Urea Content
31.8
33.2
% by weight
Density at 20℃
1.0870
1.0930
g/cm³
Refracting Index at 20℃
1.3814
1.3843
Alkalinity as AH3
0.2
%
Biuret
0.3
%
Aldehyde
5
mg/kg
Insolubles
20
mg/kg
Phosphate (PO4)
0.5
mg/kg
Calcium
0.5
mg/kg
Iron
0.5
mg/kg
Copper
0.2
mg/kg
Zinc
0.2
mg/kg
Chromium
0.2
mg/kg
Nickel
0.2
mg/kg
Aluminium
0.5
mg/kg
Magnesium
0.5
mg/kg
Sodium
0.5
mg/kg
Potassium
0.5
mg/kg
EverBlue 's SCR solution is produced with high quality industrial grade urea and purified water . We had achieved the ISO9001 certificate and our product had passed the ISO 22241 , DIN 70070 standard .
Reference Document :DIN 70070 August 2005 (quality standard).