What is the shelf life for a product once opened?
The retest and expiry dates that we assign to products are for the unopened product, as supplied, stored appropriately. We cannot provide shelf lives for the opened product since subsequent handling and the application it is being used in will to some extent determine the useful lifespan of a product once opened. If handled carefully and stored appropriately the product could potentially be used up to the date assigned to the unopened product.
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