Contact
Close menu
Close menu
Latest news
Contact

OMPG - Ostthüringische Materialprüfgesellschaft für Textil und Kunststoffe mbH
Breitscheidstraße 97
07407 Rudolstadt

Phone+ 49 3672 379 - 0
E-Mailinfo@ompg.de

Newsletter
Stay up to date with our newsletter.

Register now

Thermal testing

Back
[Translate to English:]

You are here:

Thermoplastics can be processed after heating. As a result, most of these plastics are only thermally stable to a limited extent.

Prüfverfahren zur Polymeridentifizierung

The melting point or glass transition temperature (often the softening point) of plastics can be determined using various test methods.
In addition to the classic DSC measurement, thermo-mechanical analysis (TMA) and dynamic mechanical thermal analysis (DMTA) are also available.

  • DIN EN ISO 11357-1: Differential scanning calorimetry (DSC)
  • DIN EN ISO 11357-2: Determination of the glass transition temperature and the glass transition step height
  • DIN EN ISO 11357-3: Determination of the melting and crystallization temperature and the melting and crystallization enthalpy

The heat deflection temperature of plastics is defined by the HDT temperature or the Vicat temperature.
The OMPG can carry out tests up to 220°C in a silicone oil bath. For higher Vicat temperatures, a testing device with plate heating is available

  • DIN EN ISO 75-1 / 2 - Determination of heat distortion temperature Method HDT/A and HDT/B
  • DIN EN ISO 306 - Determination of the Vicat softening temperature (VST)
  • Conditions A and B, as well as 50 and 120°C/h are possible.

The thermal conductivity of plastics is increased by additives for special applications with high heat transfer rates. One method of obtaining test values on small test specimens 10mm x 10mm x 2mm is the nano-flash method. The heating pulse source is a xenon flash lamp in the wave range 150 to 2000µm.

  • DIN EN ISO 22007: Determination of thermal conductivity and thermal diffusivity
  • DIN EN 821 T3: Determination of specific heat capacity
  • ASTM E 1461: Method for testing thermal diffusivity using the flash method
Durchführung einer Prüfung zur Längenausdehnung

The length expansion of plastics at higher temperatures can lead to the failure of component composites. It is influenced by the composition of the material and the processing conditions. Shrinkage is also possible if the materials have been stretched while hot during processing or have not had sufficient cooling time.

The following can be tested: Rods, sheets, films and fibers.

  • ISO 11359-1: Thermomechanical analysis (TMA)
  • DIN 53752: Coefficient of length thermal expansion)

The shrinkage behavior in injection molding is particularly important for the tool design, which depends, among other things, on the processing conditions. The test is carried out in accordance with DIN EN ISO 294-4 on sample sheets 60mm x 60mm x 2mm.

For automotive components, the hot storage temperature is specifically determined in accordance with DIN 53497 in order to check the dimensional accuracy of the components.

Show test standards

Here you will find a list of all test standards for which we offer services in this area. All currently accredited standards can be found on the Accreditation page in our list of services.

Show test standards for Thermal testing

Contact

Plastic tests
Dipl.-Ing. Ute Schwarz
Phone: + 49 3672 379 - 420

Search

Find test standards

You can search directly for specific standards using our range search or enter your keyword in the full text search.

read more

Other material properties

Material properties

Chemical analytics

Flammability testing and electrical applications

[Translate to English:]

Aging and resistance

Biological testing

[Translate to English:]

Special testing and test method development
Back
Share
Full text search Find test standards
show test standards
close
List of test standards for Thermal testing
ASTM D 696

Standard Test Method for Coefficient of Linear Thermal Expansion of Plastics Between -30°C and 30°C with a Vitreous Silica Dilatometer
ASTM E 1461

Standard Test Method for Thermal Diffusivity by the Flash Method
Daimler MBN 51000-3

Non-metallic materials, material systems and semi-finished products Part 3 – Other tests §5.1 Heat resistance
Daimler MBN 55555-3

Non-metallic materials, material systems and semi-finished products Part 3 – Other tests §5.1 Heat resistance
DIN 53497

Testing of plastics – Hot storage test on mouldings made of thermoplastic moulding materials without external mechanical stressing
DIN EN ISO 11357-1:2023-06

Plastics – Differential scanning calorimetry (DSC) – Part 1: General principles
DIN EN ISO 11357-2:2020-08

Plastics – Differential scanning calorimetry (DSC) – Part 2: Determination of glass transition temperature and step height
DIN EN ISO 11357-3:2024-03

Plastics – Differential scanning calorimetry (DSC) – Part 3: Determination of temperature and enthalpy of melting and crystallization
DIN EN ISO 11357-6:2024-03

Plastics – Differential scanning calorimetry (DSC) – Part 6: Determination of oxidation induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT) (formerly: DIN EN 728)
DIN EN ISO 11357-8

Plastics – Differential scanning calorimetry (DSC) – Part 8: Determination of thermal conductivity
DIN EN ISO 22007-1

Plastics – Determination of thermal conductivity and thermal diffusivity – Part 1: General principles
DIN EN ISO 294-4

Plastics – Injection moulding of test specimens of thermoplastic materials – Part 4: Determination of moulding shrinkage
DIN EN ISO 306

Plastics – Thermoplastic materials – Determination of Vicat softening temperature (VST)
DIN EN ISO 75-2

Plastics – Determination of temperature of deflection under load – Part 2: Plastics and ebonite (here: methods A and B; HDT temperature)
ISO 11359-1

Plastics – Thermomechanical analysis (TMA) – Part 1: General principles (formerlay DIN 53752) (coefficient of linear thermal expansion)
ISO 11359-2

Plastics – Thermomechanical analysis (TMA) – Part 2: Determination of coefficient of linear thermal expansion and glass transition temperature

MBN 51000-8

Polymer-based materials, material systems and semi-finished products – Part 8: Analytical tests (Mercedes-Benz)
MBN 55555-8

Non-metallic materials, material systems and semi-finished products Part 8: Analytical tests (Mercedes-Benz)