Overview
EN ISO 11833-1:2019 - Plastics - Unplasticized poly(vinyl chloride) sheets - Part 1: Types, dimensions and characteristics for sheets of thickness not less than 1 mm - is a CEN-endorsed international standard that specifies requirements and test methods for flat PVC‑U (unplasticized polyvinyl chloride) sheets. It applies to extruded and pressed PVC‑U sheets with a thickness ≥ 1.0 mm and explicitly excludes biaxially stretched sheets. This edition (2019) supersedes EN ISO 11833-1:2012 and consolidates key material, dimensional and performance requirements for manufacturers, testing laboratories and specifiers.
Key topics and technical requirements
The standard covers the following technical areas and required test methods:
- Material and classification
- Defines types of flat extruded and pressed PVC‑U sheets and classification rules.
- Appearance and surface treatment
- Requirements for masking, visual appearance and colour acceptance.
- Dimensions
- Measurement and tolerances for length, width, thickness and rectangularity, including provisions for measurement at temperatures other than 23 °C.
- Mechanical and basic properties
- Tests for tensile stress at yield, nominal strain at break, modulus of elasticity, Charpy impact strength (notched and unnotched), flexural strength, ball indentation hardness, and creep modulus.
- Thermal and dimensional stability
- Vicat softening temperature, temperature of deflection under load, and dimensional change on heating; methods for resistance to delamination for thick pressed sheets (wedge and thermal-bending annexes).
- Optical and electrical properties
- Total luminous transmittance and volume resistivity.
- Chemical, flammability and physiological behavior
- Requirements and test methods for chemical resistance, flammability and physiological behaviour where applicable.
- Testing framework
- Sampling, specimen preparation, conditioning, measurement frequencies and handling of test results.
- Marking
- Requirements for product identification and marking.
Practical applications and users
EN ISO 11833-1:2019 is used by:
- PVC‑U sheet manufacturers for product specification and quality control.
- Independent testing laboratories for compliance testing and certification.
- Architects, fabricators and product designers specifying PVC‑U sheets for glazing, signage, cladding, industrial and medical applications.
- Procurement and regulatory bodies seeking standardized acceptance criteria.
- R&D teams developing new formulations or sheet production processes.
Related standards
- ISO 178 (flexural properties)
- ISO 179-1 (Charpy impact)
- ISO 75-2 (temperature of deflection under load)
- Other parts of the ISO 11833 series for complementary requirements
Keywords: EN ISO 11833-1:2019, PVC‑U sheets, unplasticized polyvinyl chloride, extruded sheets, pressed sheets, sheet dimensions, mechanical properties, test methods, Vicat softening, Charpy impact.
