EN 572-1/FprA1

EN 572-1/FprA1 is a draft amendment to EN 572-1, the standard for basic soda lime silicate glass products used in building. It belongs to the technical framework that defines the shared terminology and the general physical and mechanical properties of this major family of architectural glass products.

Core concepts and product family

Soda lime silicate glass is the most widely used glass composition in building applications. In general technical terms, it is based on a silica network modified with soda and lime components, giving a practical balance of formability, transparency, and everyday performance in construction uses. EN 572-1 addresses the vocabulary and the general physical and mechanical characteristics of this product family, helping users understand the common names and concepts that apply across related glass products and formats.

What this document does

As an amendment draft, A1 does not stand alone as a full specification; it updates the parent standard. Its function is to revise the existing framework for definitions and general properties rather than to replace the complete technical content of EN 572-1. In building glass practice, terminology standards help manufacturers, specifiers, laboratories, and supply-chain partners use the same terms in the same way.

• Focuses on the basic soda lime silicate glass product family used in buildings.
• Relates to the definitions and general physical and mechanical properties topic.
• Issued as a draft amendment to update the parent standard.
• Supports shared understanding of terminology and general characteristics.