Low pressure Cylinder Test method
Height
Diameter
Thickness
Internal volume
Mark 
Pressure test
EN3-8
Burst test
EN3-8
Crush test
EN3-8
Paint thickness
Paint resistance ISO 2409
Internal coating thickness test (if required)
High pressure Cylinder Test method
Height
Diameter
Thickness
Internal volume EN3-9
Thread
Mark EN3-9
External paint thickness
Paint strength ISO 2409
Valve Test method
Dimension test EN3-8/3-9
Safety valve working pressure test (if possible) EN3-8/3-9
Measure means control
Clenching means calibration  
Gauge burst test EN3-8
Hose Test method
Dimensions  
Tight pressure test EN3-8/3-9
Extinguishing material Test method
Filling tolerance test  
Powder test:
physical features:
- grain dimension
- apparent density
chemical features:
- MAP mono ammonium phosphate
- ammonium sulphate percentage
EN3-7
EN615 \6, 7, 10, 11, 12
Fire extinguisher Test method
Propellent quantity, pressure and weight EN3/7
Discharge time EN3/7
Residual charge at 20°C EN3/7
Safety pin extraction strength EN3/7
Activation force EN3/7
Clenching force  
Tightness-leak test EN3/7