Ryan Johnsson

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.

Gel permeation chromatography (GPC), a.k.a. size exclusion chromatography (SEC), of polymers using a refractive index (RI) detector. This technique will measure the molecular weight distribution of polymer samples in a graphical format, the dispersity, Đ, and determine the molecular weight averages, Mn, Mw, Mz, relative to an existing standard. Please note that the numerical values determined for molecular weight by the RI method are not absolute. GPC/SEC-RI is most commonly used to analyze the graphical distribution or dispersity of a polymer. If you need an absolute determination of your sample's true molecular weight, please see our GPC/SEC-MALS method. Samples must be soluble or capable of being analyzed in solution at room temperature. The type of polymer and the necessary solvent will affect the cost of the measurement. Please contact our experts for a tailored quote.

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.

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.