ISO 5018 Refractory Materials - Test to Determine Actual Density

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 5018 testing. It creates a method for measuring the actual density of refractory products and raw materials.

Actual density is determined by measuring the dry mass and actual volume of a Material Sample after it has been crushed and ground to as many closed pores as possible. The volume of the ground material is determined using a pycnometer and a liquid of known density, the temperature of the liquid is controlled or carefully measured.

Unfired refractory products and basic products may require pre-treatment, the conditions of which will be agreed between the Parties concerned.

In the case of a shaped refractory product, the number of test pieces to be tested for each piece should be agreed between the parties concerned and specified in the test report. To facilitate statistical evaluation when several bricks are tested, the same number of test pieces will be taken from each brick.

Before the test, the material to be tested must be dried at 110 + 5°C to constant mass, that is, until two consecutive weighings have been made before, and after at least 2 hours in the drying oven it does not differ by more than 0% from the mass of the test material. Before each weighing, the test material should be placed in the dryer until it has cooled to room temperature.

EUROLAB assists manufacturers with ISO 5018 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.