WearCheck Water – one of many situation monitoring specialist firm’s divisions – just lately grew to become the primary laboratory in Africa to be formally ISO17025 accredited to check AdBlue®/ DEF (diesel exhaust fluid) by the South African Nationwide Accreditation System (SANAS).
This newest achievement is added to WearCheck Water’s different accreditations – the corporate already has ISO17025:2017 accreditation for chemical and microbiological water evaluation.
WearCheck Water’s AdBlue®/ DEF-analysis accreditation signifies that the corporate can check AdBlue®/ DEF options to make it possible for Adblue producers meet the required ISO 22241 requirements. This evaluation service will help AdBlue®/ DEF producers and customers, OEMs, gasoline depots, and large-scale truckers/ fleet managers.
SANAS is the one nationwide physique in South Africa that’s chargeable for finishing up accreditation of assorted entities, together with laboratory testing, the related part which regulates WearCheck’s laboratory providers.
Normal supervisor of WearCheck Water, Thelma Horsfield, is happy with the corporate’s ISO17025 achievements. ‘AdBlue®, a type of Diesel Exhaust Fluid (DEF), helps to cut back dangerous emissions (Nox, or nitrogen oxide), and is added to diesel engines. It’s not a gasoline additive and isn’t added to the gasoline tank of a automobile. AdBlue® is a colourless, non-toxic liquid that converts pollution into gases which don’t hurt the setting.
‘AdBlue® is utilized in automobiles with Selective Catalytic Discount (SCR) expertise. It’s a 32,5% answer of high-purity, synthetically manufactured urea in de-mineralised water, and is secure to make use of.
‘Automobiles with SCR expertise have a separate tank stuffed with AdBlue®/DEF, which is injected into the exhaust pipe, in entrance of the SCR catalyst, downstream of the engine. Heated within the exhaust, it decomposes into ammonia and CO₂. When the NOx from the engine exhaust reacts contained in the catalyst with the ammonia, the dangerous NOx molecules within the exhaust are transformed to innocent nitrogen and water, that are launched from the exhaust pipe as steam.
‘Adblue®/DEF options are made as much as ISO 22241 requirements to make sure that the mixtures are created accurately and don’t hurt engines,’ she stated.
Moses Lelaka, technical supervisor for WearCheck Water, was instrumental in organising and implementing the testing course of, together with the corporate’s high quality supervisor, Lorato Hotane.
Lelaka explains, ‘We provide an evaluation service that features testing titrimetric (alkalinity), gravimetric (insoluble matter), colorimetric (biuret and aldehydes), in addition to the ionisation (metals). After investing in a refractometer for our laboratory, we’re already conducting the checks in our Johannesburg laboratory, and will probably be extending the service to our Cape City laboratory quickly.’
Lelaka provided the following pointers for taking an Adblue® pattern. ‘Pattern containers must be made from supplies appropriate with urea options, usually high-density polyethylene (HDPE) or stainless-steel, and have to be sealed correctly to keep away from contamination.
‘The sampling container should not have any earlier chemical residues, and it must be rinsed with distilled or deionised water earlier than use. The pattern have to be consultant of the complete batch, and keep away from areas with potential sediment or contamination. Open the valve, permitting the preliminary few litres to movement out, discarding it to take away any residual contamination from the sampling level. Fill the container, seal and label it, and retailer it in a cool, dry place till it’s examined.
‘The pattern will probably be examined for compliance with ISO 22241 requirements, checking for properties like urea focus, alkalinity, biuret content material, and different contaminants.
For extra info, go to www.wearcheck.co.za, E-mail mosesl@setpoint.co.za or marketing@wearcheck.co.za
