EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 787-5 testing. The oil absorption value has to be compared with the value determined on the product sample decided at the same time. The principle of the method is based on adding linseed oil from a burette to the portion to be tested.
After each addition, rub the oil into the product until conglomerates form. Stop adding oil when a smooth paste forms. It should spread without cracking or crumbling. Read the burette and note the amount of oil used. The result is expressed as milliliters of oil per 100 g of product or grams of oil per 100 g of product.
Oil absorption value is a measure of the amount of oil required to wet and disperse a fixed amount of pigment or filler. It is an important property that affects the dispersibility of the pigment or filler in a formulation and its compatibility with other ingredients.
ISO 787-5 provides guidelines for preparing a pigment or filler paste in a given oil and measuring the amount of oil needed to achieve a given degree of consistency. The standard also specifies the conditions under which the determination must be made, such as temperature and mixing time.
Oil absorption value is expressed as the number of grams of oil required to absorb 100 grams of pigment or extender. The standard specifies the minimum number of determinations that must be made and provides guidance on calculating and reporting results.
ISO 787-5 applies to a wide variety of pigments and extenders, including inorganic and organic pigments, fillers and extenders. The standard provides a systematic and objective approach to determining the oil absorption value, which helps to obtain consistent and accurate results.
EUROLAB assists manufacturers with ISO 787-5 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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