Multi-lateral agreement (MLA) in the EA ensures that members recognise each other's accreditations.
A similar agreement also exists at international level between members of the IAF and the ILAC.
Linde Gas also has other cylinder filling sites across Europe with accredited laboratories for various gases and concentrations, including carbon dioxide, carbon monoxide, propane and oxygen in nitrogen and/or air.
The specialty gases plant in Munich for example is accredited according to ISO 17025, general requirement to the competence for testing and calibration laboratories.
Here the gas cylinders are filled, analysed and approved by an authorised technician.
The gas in the tanker is also analysed to detect any critical impurities.
Linde Gas provides detailed documentation on all of its traceable products, including information on each step in the value chain through to delivery to the customer.
The following is a typical process flow for liquid and cylinder gases: Liquid gas is continually produced at a Linde Gas air separator.
Accreditation organisations assess management systems and technical competence.
They also verify that the company being accredited is unbiased and competent.