ISO 11542-1-2001 PDF

Full title and description

Plastics — Ultra-high-molecular-weight polyethylene (PE-UHMW) moulding and extrusion materials — Part 1: Designation system and basis for specifications. This part establishes a designation (naming/grade) system and the basis on which specifications for PE‑UHMW moulding and extrusion materials can be prepared.

Abstract

ISO 11542-1:2001 defines a designatory system and the principal designatory properties to be used when specifying ultra‑high‑molecular‑weight polyethylene (PE‑UHMW) for moulding and extrusion. It describes which properties form the basis for material specifications (for example viscosity/MFR ranges and other designatory characteristics) so producers, purchasers and testing laboratories can reference a common specification framework. The document has since been withdrawn and its subject matter incorporated into the later ISO 21304 series.

General information

• Status: Withdrawn (replaced by a newer series).
• Publication date: February 2001 (Edition 2, 2001).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 83.080.20 (Thermoplastic materials).
• Edition / version: Edition 2 (2001).
• Number of pages: 7 (approx., as listed by ISO).

Scope

This part of ISO 11542 specifies a designation system and sets out the basis for specifications for PE‑UHMW moulding and extrusion materials. It identifies the designatory properties to be used when preparing material specifications and gives the classification framework for grades of PE‑UHMW intended for moulding and extrusion processes. The standard applies to PE‑UHMW materials having very low melt mass‑flow rates (MFR), and references the test basis used to characterise those materials.

Key topics and requirements

• Designation system (grade coding and naming) for PE‑UHMW materials to be used in specifications.
• Identification of designatory properties forming the basis of specification (e.g., viscosity/MFR ranges and other key characteristics).
• Definition of PE‑UHMW in the context of the standard (materials with MFR less than 0,1 g/10 min measured under the referenced conditions).
• Reference to relevant test conditions and methods used to characterise MFR/viscosity for specification purposes (as used by test laboratories and producers).
• Basis for producing consistent procurement/specification texts between suppliers and purchasers of PE‑UHMW moulding and extrusion materials.

Typical use and users

Material suppliers and manufacturers of PE‑UHMW products, procurement/specification engineers, materials laboratories and test houses, product designers and quality managers in industries using wear‑resistant or low‑friction components (for example conveyor parts, liners, bushings, industrial wear parts) use the designation and specification basis provided by this part when creating or interpreting material specifications.

Related standards

ISO 11542 is a multipart series; Part 2 dealt with preparation of test specimens and determination of properties (ISO 11542‑2:1998). The ISO 11542 series has been superseded and its subject matter incorporated into the ISO 21304 series (for example ISO 21304‑1:2019 and ISO 21304‑2:2021), which are the current documents covering designation, specification basis and test methods for PE‑UHMW.

Keywords

PE‑UHMW, ultra‑high‑molecular‑weight polyethylene, UHMWPE, moulding materials, extrusion materials, designation system, material specification, melt mass‑flow rate (MFR), viscosity, ISO 11542, ISO 21304.

FAQ

Q: What is this standard?

A: ISO 11542‑1:2001 is the second‑edition international standard that established a designation system and the basis for specifications for ultra‑high‑molecular‑weight polyethylene (PE‑UHMW) moulding and extrusion materials.

Q: What does it cover?

A: It covers the designatory properties and the framework for specifying PE‑UHMW grades (how to name/ designate grades and which key properties — for example MFR/viscosity ranges — should form the basis of specifications). The document does not itself provide full test procedures for all properties (those were covered in ISO 11542‑2 and later consolidated into ISO 21304‑2).

Q: Who typically uses it?

A: Material suppliers, product designers, specification writers, testing laboratories and quality/technical teams in industries using PE‑UHMW for moulded or extruded components. These users rely on the designation framework when creating procurement specifications and communicating material grades.

Q: Is it current or superseded?

A: ISO 11542‑1:2001 has been withdrawn and the subject matter has been revised and incorporated into the ISO 21304 series (for example ISO 21304‑1:2019). Users should refer to the ISO 21304 documents for the current, active requirements and test methods.

Q: Is it part of a series?

A: Yes — it was published as part 1 of the ISO 11542 multipart series (with part 2 addressing test specimen preparation and property determination). Both parts of ISO 11542 have been withdrawn and replaced by the ISO 21304 series (parts 1 and 2).

Q: What are the key keywords?

A: PE‑UHMW, ultra‑high‑molecular‑weight polyethylene, UHMWPE, moulding, extrusion, designation, material specification, MFR, viscosity, ISO 11542, ISO 21304.