Overview
ISO 19066-1:2014 defines a standardized designation system for methyl methacrylate‑acrylonitrile‑butadiene‑styrene (MABS) moulding and extrusion materials. It provides a concise, machine- and human‑readable way to identify MABS compositions and key designatory properties so material suppliers, specifiers and manufacturers can communicate material identity and basis for specifications. The standard applies to MABS in powder, granules or pellet form (continuous phase of styrene/alkyl‑styrene, acrylonitrile and methyl methacrylate with a dispersed butadiene elastomeric phase).
Key topics and technical requirements
- Designation structure: An identity block (ISO number + individual‑item block) split into five data blocks, separated by commas. Example designation:
- Data blocks:
- Block 1 - Polymer identification (MABS) and composition code (AN and MMA content classes).
- Block 2 - Fillers/reinforcements and nominal content (e.g., GF25 for 25% glass fibre).
- Block 3 - Intended application and processing/additives (codes for injection moulding, extrusion, stabilizers, color, antistatic, etc.).
- Block 4 - Four designatory property ranges encoded numerically and separated by hyphens:
- Vicat softening temperature (VST)
- Melt volume‑flow rate (MVR) at 220 °C/10 kg
- Charpy notched impact strength
- Tensile modulus
- Block 5 (optional) - Additional specification references or national standards to transform designation into a full material specification.
- Test methods and conditioning: Designatory properties are determined per ISO 10366‑2 (preparation of specimens and property determination). MVR and VST conditioning requirements are specified.
- Limitations: The designation system does not guarantee identical performance between materials sharing a code; it is a basis for specification, not a complete engineering datasheet.
Practical applications
- Standardizes material identification for:
- Material suppliers and compounders issuing product codes and part‑marking.
- OEMs and designers specifying materials for injection moulding, extrusion, cables, films and other processing routes.
- Quality control and procurement teams comparing batches or suppliers.
- Regulatory and conformity documentation where unambiguous material identification is required.
Who should use this standard
- Polymer compound producers, plastics engineers, specification writers, product designers, purchasing and quality assurance teams in automotive, electronics, consumer goods, medical device housings and general industrial applications using MABS.
Related standards
Keywords: ISO 19066-1:2014, MABS, methyl methacrylate‑acrylonitrile‑butadiene‑styrene, designation system, moulding and extrusion materials, Vicat softening temperature, melt volume‑flow rate, Charpy notched impact strength, tensile modulus.