ISO 7823-3:2021
Plastics — Poly(methyl methacrylate) sheets — Types, dimensions and characteristics — Part 3: Continuous cast sheets
Plastics — Poly(methyl methacrylate) sheets — Types, dimensions and characteristics — Part 3: Continuous cast sheets
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 10
- Дата публикации:
- 14 июня 2021 г.
- Издание:
- ISO IS 7823 edition 3 version 1
- ICS:
- 83.140.10
This document specifies requirements for non-modified flat poly(methyl methacrylate) (PMMA) continuous cast sheets for general-purpose use. The sheets can be colourless or coloured, and can be transparent, translucent or opaque. The thickness range of the sheets covered by document is 1 mm to 10 mm.
Abstract
Overview
ISO 7823-3:2021 - Plastics - Poly(methyl methacrylate) sheets - Part 3: Continuous cast sheets - specifies requirements for non‑modified flat PMMA continuous cast sheets for general‑purpose use. It covers sheets that are colourless or coloured, and that may be transparent, translucent or opaque, with a thickness range of 1 mm to 10 mm. The standard defines composition limits, appearance criteria, dimensional tolerances, basic mechanical/thermal/optical properties and relevant test methods for quality and conformity.
Key Topics and Requirements
- Scope and composition
- Applies to PMMA bulk‑polymerized (continuous cast) homopolymers or copolymers.
- Additives (colorants, UV absorbers, etc.) are permitted; amounts that affect basic properties are typically less than 5 % by mass.
- Appearance and surface quality
- Smooth surfaces required; no surface defects or inclusions larger than 3 mm.
- Defects are classified: negligible (
Технические детали
- Технический комитет
- ISO/TC 61/SC 11 - Products
- SKU
- ISO 7823-3:2021
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