Ryan Johnsson

Determination of the oxygen transmission rate of paper and cardboard materials. The test is performed on three identical samples to ensure repeatability. Measurement conditions (temperature and relative humidity) can be chosen according to the intended use of the material. The oxygen transmission rate is typically measured at 23 °C and 0% relative humidity as per standard ASTM D3985. In moist conditions, for example at 38 °C and 90% relative humidity, standard ASTM F1927 is used. Please disclose the desired temperature (from 5 °C to 95 °C) and relative humidity (either 0% or 10% to 90%) upon ordering. This measurement is suitable for paper and board materials with OTR values between 0.05 to 5000 cm3/(m2 * day).

The impact strength of rigid plastics can be measured with the Charpy and Izod methods. In these tests, a pendulum is used to break the sample specimen. 10 specimens are needed for both tests. This measurement covers impact testing with either Charpy (ISO 179) or Izod (ISO 180). Please specify the preferred method upon ordering. The most significant difference between the Charpy and Izod methods is the placement of the specimen. In the Izod test, it is placed vertically and the notch is on the pendulum's side, while the Charpy test specimen is horizontal and the notch is on the opposite side of the pendulum. Testing can also be performed without a notch. Sample preparation can be purchased separately.

Determination of the flexural properties of rigid and semi-rigid plastics and composite materials using 3-point bending tests according to the ISO 178 standard. Results include the following parameters: Conventional deflection, Flexural modulus, Flexural strength at conventional deflection, Flexural strength, Flexural strength at break, Bending at conventional deflection, Bending at break. The displayed price covers testing at room temperature. Other temperature programs are available for an extra charge.

This test is used to determine the compression properties of rigid and semi-rigid plastics according to the ISO 604 standard. A range of test speeds and specimen dimensions are included in the standard method. For comparative results, these parameters must be chosen carefully. Testing is typically performed on type B test pieces with five parallel measurements per sample. As a result, you will get the compressive strength, modulus, and stress/strain curves, which can be used to evaluate the material's properties. The price does not include sample preparation.