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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.
International accreditation standards ensure that products, services and organisations are assessed according to uniform standards, regardless of where the accreditation takes place.
Consumers can therefore be sure that the resulting certificates and reports meet the same high criteria regardless of whether they were issued within or outside of a specific country.
Certificates of analysis Linde Gas operates in line with the latest version of ISO 6141, the standard that defines the information required for certificates of analysis.
All of our gas products undergo quality assessments.
Another example is the Linde Gas laboratory in Holland, which is also accredited by the Dutch Accreditation Council (Rv A), an organisation recognised by other European accreditation bodies such as DAR, Swedac and Cofrac.
All of these accreditations are considered to be equal to ISO 17025.The central analytical department in Munich is even accredited according to ISO guide 34.This fulfils the general requirements for the competence of reference material producers.The Rv A is the only Dutch organisation to have signed an MLA, which means that the (analysis) certificates and reports issued by Rv A-accredited companies are recognised worldwide.Traceability In certain applications and markets, for example the pharmaceutical and food industries, customers want and are required to know the exact origins of products.French engineers Edmond Fouché and Charles Picard became the first to develop oxygen-acetylene welding in 1903.Pure oxygen, instead of air, is used to increase the flame temperature to allow localized melting of the workpiece material (e.g. A common propane/air flame burns at about 2,250 K (1,980 °C; 3,590 °F), During the early 20th century, before the development and availability of coated arc welding electrodes in the late 1920s that were capable of making sound welds in steel, oxy-acetylene welding was the only process capable of making welds of exceptionally high quality in virtually all metals in commercial use at the time.Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the U.S.) and oxy-fuel cutting are processes that use fuel gases (or liquid fuels such as gasoline) and oxygen to weld or cut metals.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.