ISO 19069-2:2016

Overview

ISO 19069-2:2016 - Plastics - Polypropylene (PP) moulding and extrusion materials - Part 2 provides standardized methods for the preparation of test specimens and the determination of properties of polypropylene (PP) used in moulding and extrusion. The standard defines handling and conditioning requirements, specimen preparation procedures (injection and compression moulding), and the set of test methods suitable to characterise PP grades so that results are reproducible and comparable across laboratories and suppliers.

Key topics and technical requirements

• Specimen preparation methods: Injection moulding (per ISO 294‑1 / ISO 294‑3) and compression moulding (per ISO 293). The standard requires consistent use of one method for all specimens to ensure comparability.
• Injection moulding guidance: Melt temperatures and processing guidance vary with melt flow rate (MFR). Example guidance in the standard recommends lower melt temperatures for higher MFR grades and checks on mass uniformity (masses should not differ by more than 1%).
• Compression moulding guidance: Typical moulding temperature and cooling-rate control are specified to avoid crystallinity differences that affect measured properties.
• Conditioning of specimens: Unfilled specimens - condition 40–96 h at (23 ± 2) °C. Specimens containing moisture‑sensitive fillers/additives - same temperature with (50 ± 10) % relative humidity.
• Test methods and properties: Properties are selected from ISO 10350‑1 and other widely used tests: rheological (MFR/MVR), density, tensile (ISO 527‑2), flexural (ISO 178), Charpy impact (ISO 179), puncture/impact (ISO 6603‑2), thermal (DSC/TMA) and electrical/fire tests if applicable.
• Reproducibility emphasis: The standard stresses using specified specimen dimensions, conditioning and test procedures - values can differ if alternative specimen geometries or prep methods are used.

Practical applications

• Quality control and acceptance testing of PP compounds and finished components.
• Raw material and compound specification writing (suppliers and purchasers).
• Comparative benchmarking and datasheet generation (using ISO 10350‑1 presentation rules).
• Product development and failure analysis where consistent material property data are required.
• Regulatory, certification and procurement processes that require standardized test evidence.

Who should use this standard

• Polymer testing laboratories and QA/QC teams
• PP compounders, resin producers and masterbatch suppliers
• Injection moulding and extrusion manufacturers
• Design engineers and material specifiers
• Certification bodies and regulators

Related standards

Relevant normative references cited in ISO 19069‑2 include ISO 294‑1, ISO 293, ISO 1133‑1 (MFR/MVR), ISO 527‑2 (tensile), ISO 178 (flexural), ISO 179 (Charpy impact), ISO 2818 (machining specimens) and ISO 10350‑1 (data presentation).

Using ISO 19069‑2:2016 ensures consistent, comparable PP material data for specification, testing and product development.