CHOICE has found another hand sanitiser lacking after its third round of testing the products this year.
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White Knight Hand Sanitiser 500ml, failed to meet the 60 per cent alcohol threshold required for sanitisers to be effective.
Twenty seven other products tested all passed.
The recommended minimum alcohol content for effective hand sanitisers ranges from 60 per cent to 80 per cent, depending on the type of alcohol.
The WHO standard is 80 per cent ethanol or 75 per cent isopropyl alcohol. Australia's Therapeutic Goods Administration (TGA) calls for at least 60 per cent alcohol.
CHOICE said the White Knight sanitiser is sold at United Petroleum petrol stations.
In it's statement it said "we contacted the distributor of the product, White Knight Sanitation Pty Ltd, an associated company of United Petroleum, to ask them for comment. They told us that the product was manufactured by Teddie Group Pty Ltd, who had been contracted to produce White Knight's hand sanitisers.
"In their response they stated that they had immediately withdrawn the product from sale in all United Petroleum outlets and were conducting urgent testing of the product.
"They also told us they had previously cross-checked the volume of ethanol supplied against sanitiser produced by the manufacturer, and found it was consistent with the information provided by the maker. They also spoke to Teddie Group after learning of our results, who stood by their claim that the product contains at least 75 per cent alcohol."
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CHOICE senior campaigner Dean Price said "White Knight's response is what we expect to see and we thank the companies involved for taking the matter seriously."
In July CHOICE found that a hand sanitiser from clothing company Mosaic Brands contained just 23 per cent alcohol content, even though it was labelled as containing 70 per cent alcohol.
In September, it published results of testing on another 29 products, all of which passed.