ISO 1183-3 Plastics - Methods for Determining Density of Non-Cellular Plastics - Gas Pycnometry Method

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 1183-3 testing. This part of ISO 1183 specifies a method for determining the density or specific volume of solid non-cellular solid matter.

The volume of a sample of known apparent mass is determined by measuring the change in gas volume in a pycnometer upon insertion of the sample. The volume change can be obtained directly by means of a moving piston or indirectly by measuring the pressure change in the pycnometer and calculating the volume using the pressure-volume relationship for ideal gases.

Dry test samples to constant mass before performing any volume measurements, unless excluded by the conditioning procedure. Take care to choose suitable drying conditions to avoid changes in the density of the test material.

Samples whose density change during conditioning may be greater than the accuracy required for density determination should be conditioned prior to testing against the relevant material standard. Conditioning at a certain humidity or a constant degree of crystallinity may be necessary.

EUROLAB assists manufacturers with ISO 1183-3 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.