LIQUID / CHEMICAL RESISTANT GLOVES The relevant Australian Standard AS/NZS 2161.10:2005 for gloves giving protection from chemicals and micro-organisms is taken from the European Standard EN374:2003. This Standard recognises 3 distinct performance levels from gloves as tested. Approved gloves will be appointed to either of the: Chemical Resistant certified classification which entails the glove material and construction being able to withstand a minimum of 30 minutes ‘breakthrough’ time for a selection of 3 separate chemicals, from a list of 12 standard defined chemicals. Further performance testing in the form of ‘Chemical Permeation’ is conducted to achieve a Protection Index. Gloves passing the >30 minute test are rated at Class 2; >60 minutes Class 3; >120 minutes Class 4; >240 minutes Class 5; with permeation protection of greater than 480 minutes rated as Class 6. Low Chemical Resistant or ‘waterproof’ gloves are those that do not pass the >30 minute breakthrough time against at least 3 chemicals from the defined standards test list. However these gloves may still comply with the ‘Chemical Permeation’ component of the EN374 testing. In these cases the low chemical resistant icon will signify the gloves protection potential. Micro-Organism approval requires the glove being tested to conform to at least a Class 2 level of performance. 20 www.pipaus.com It is important to note that even though a chemical glove in use may not show any visual signs of wear or degradation, its structural integrity could still be challenged by chemical penetration. A visual inspection of gloves prior to use (looking for signs of hair line fractures between finger joints, wear in palm surface, any pinholes or discolouration) is a critical part of ensuring your P.P.E is in good working order and up to the task. This check may still not be sufficient to highlight the transfer of chemical to the inside of the glove. Always be aware of sense of contact irritation or smell from inside the gloves. For volatile or hazardous chemicals with limited or nil smell change the gloves more frequently as a precautionary measure. COMMON APPLICATIONS • Nitrile based gloves have reasonably good resistance to hydro-carbon based petro chemicals such as Sump oils, Turpentine, Kerosene, Acetone, Toluene. • Nitrile is used in many applications involving oils and liquids including mining, assembly, packaging, parts handling, manufacturing, metal fabrication and mechanical service work.
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