EN ISO 14527-2:1999 PDF

Overview

EN ISO 14527-2:1999 specifies how to prepare test specimens and determine properties of urea‑formaldehyde (UF) and urea/melamine‑formaldehyde (UF/MF) powder moulding compounds (PMCs). It defines handling and conditioning requirements for test material, procedures for injection and compression moulding of specimens, and the test methods needed to characterize mechanical, thermal, rheological and selected electrical properties. The aim is reproducible, comparable results for quality control, specification and material selection.

Key topics and requirements

• Scope and purpose
  • Methods for specimen preparation and testing of UF- and UF/MF‑PMCs.
  • Properties selected mainly from ISO 10350‑1 and other PMC‑specific methods.
• Specimen preparation
  • Two accepted moulding routes: injection moulding (ISO 10724‑1/2) and compression moulding (ISO 295).
  • Consistent processing method and fixed processing parameters are mandatory for comparability.
  • Typical moulding conditions given (examples from the standard):
    • Injection: melt temperature ~100–110 °C, mould temperature ~140–150 °C, injection velocity 50–150 mm/s (definite values must be recorded).
    • Compression: mould temperature ~140–150 °C, pressure 20–40 MPa, cure time 20–60 s per mm thickness.
  • If high thermal‑flow PMCs cannot form standard injection specimens, compression moulding or machining from compression plates is allowed.
• Conditioning
  • Standard lab atmosphere: (23 ± 2) °C and (50 ± 5) % RH (ISO 291).
  • Method 1: condition in standard atmosphere for ≥16 h.
  • Method 2: condition in distilled water 24 h, then standard atmosphere 2 h (where specified).
• Test methods & properties
  • Lists rheological, mechanical (tensile, flexural, impact), thermal (deflection, TMA), dimensional (shrinkage), and selected electrical/flammability tests; references supporting ISO and IEC methods.
  • Emphasis that specimen dimensions, preparation and test procedures defined in the standard must be followed to achieve reproducible values.

Applications and who uses it

• Material and compound manufacturers for product specification and batch testing.
• Quality control and independent test laboratories for compliance and comparative data.
• R&D teams characterizing new formulations (mechanical, thermal, flow behaviour).
• OEMs and specifiers in sectors using thermosetting PMCs (electrical components, housings, insulating parts) where controlled material properties and reproducible test data are required.

Related standards

• ISO 14527‑1 (designation system), ISO 14527‑3 (requirements for selected compounds)
• ISO 10350‑1 (data acquisition/presentation), ISO 10724‑1/2 (injection moulding of PMC specimens)
• ISO 295 (compression moulding), ISO 291 (conditioning), ISO 2577, ISO 2818 and relevant IEC electrical and flammability test standards.

Keywords: EN ISO 14527-2:1999, urea-formaldehyde, urea/melamine-formaldehyde, powder moulding compounds, UF‑PMC, UF/MF‑PMC, test specimens, injection moulding, compression moulding, conditioning, ISO 10350-1.