ISO 24023-1:2020
Plastics — Plasticized poly(vinyl chloride) (PVC-P) moulding and extrusion materials — Part 1: Designation system and basis for specifications
Plastics — Plasticized poly(vinyl chloride) (PVC-P) moulding and extrusion materials — Part 1: Designation system and basis for specifications
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 6
- Дата публикации:
- 13 мая 2020 г.
- Издание:
- ISO IS 24023 edition 1 version 1
- ICS:
- 83.080.20
1.1 This document establishes a system of designation for plasticized PVC thermoplastic material which can be used as the basis for specifications. 1.2 The types of PVC-U plastics are differentiated from each other by a classification system based on appropriate levels of the designatory properties a) Shore hardness, b) density, c) torsional-stiffness temperature at 300 MPa, and on information about physical form, intended application and/or method of processing, important properties, additives, colorants. 1.3 This document is applicable to all plasticized compositions of homopolymers and copolymers that contain at least a mass percentage of 50 % of vinyl chloride. It is also applicable to plasticized compositions containing chlorinated poly (vinyl chloride) and to plasticized compositions containing blends of one or more of the above-mentioned polymers, provided that the total amount of these polymers represents at least a mass percentage of 50 % of the polymer content of the composition. This document applies to materials ready for normal use in the form of powder (dry blends), granules or pellets and to materials unmodified or modified by colorants, additives, fillers, etc. It does not apply to cellular plastics or to paste compositions (plastisols). 1.4 This document does not intend to imply that materials having the same designation give the same performance. It does not provide engineering data, performance data or data on processing conditions which might be required to specify a material for a particular application and/or method of processing. If additional properties are required, they are, if suitable, determined using the test methods specified in ISO 24023-2. 1.5 In order to specify a thermoplastic material for a particular application or to ensure reproducible processing, additional requirements can be given in data block 5 (see 4.1).
Abstract
Overview
ISO 24023-1:2020 defines a standardized designation system and basis for specifications for plasticized poly(vinyl chloride) (PVC‑P) materials used in moulding and extrusion. It provides a structured code to identify PVC‑P thermoplastic materials (powders, granules, pellets) by key designatory properties and by intended form or processing, enabling clearer material descriptions in procurement, specifications and technical communication.
Key topics and requirements
- Scope and applicability
- Applies to plasticized homopolymers, copolymers and blends containing at least 50% vinyl chloride by mass, including chlorinated PVC where the polymer content meets the threshold.
- Excludes cellular plastics and paste compositions (plastisols).
- Designation structure
- Uses a multi‑block code: identity, descriptor, and an “object” block subdivided into five data blocks (1–5).
- Block 1: Material symbol PVC‑P (per ISO 1043‑1).
- Block 3: Application/process and additional attributes using letter codes (e.g., E = extrusion, M = injection moulding, K = cable coating, G = granules, C = coloured, N = natural, Z = antistatic).
- Block 4: Core designatory properties encoded as two‑digit codes separated by dashes:
- Shore hardness (A or D scale)
- Density (mass per volume) ranges
- Torsional‑stiffness temperature at 300 MPa
- Block 5: Optional additional specification requirements (e.g., reference to national standards).
- Limits and disclaimers
- Same designation does not guarantee identical performance; the standard does not provide engineering or processing data.
- Additional properties/tests, if required, are determined using methods in ISO 24023‑2.
Applications and who uses it
- Material and compound manufacturers use the code to label and communicate product types consistently.
- Product designers and specifiers (plastics engineers, OEMs) reference the designation when selecting PVC‑P for extrusion, injection moulding, cable coatings, film, etc.
- Procurement and quality teams use the system for unambiguous purchasing and acceptance criteria.
- Testing laboratories and certification bodies rely on the designation with ISO 24023‑2 test methods to verify property ranges.
Practical benefits
- Streamlines material selection and comparison across suppliers.
- Improves clarity of technical specifications for moulding and extrusion operations.
- Facilitates traceability and reduces miscommunication in supply chains for plasticized PVC products.
Related standards
- ISO 24023‑2 - Preparation of test specimens and determination of properties (complements Part 1).
- ISO 1043‑1 - Polymer symbols and abbreviated terms.
- Replaces ISO 2898‑1:1996 (technical revision).
Keywords: ISO 24023‑1:2020, PVC‑P, plasticized PVC, designation system, Shore hardness, density, torsional‑stiffness temperature, moulding and extrusion materials.
Технические детали
- Технический комитет
- ISO/TC 61/SC 9 - Thermoplastic materials
- SKU
- ISO 24023-1:2020
Похожие стандарты
Стандарты, упомянутые в описании