La Italian standard UNI 7697 dictates the criteria safety in glass applications. This standard indicates the principles for choosing the glass to be used indoors and outdoors with the safety guarantee requirements.
La standard 7697 must be considered one daily work tool by all operators in the sector (designers, construction companies, window and door manufacturers, glassmakers and retailers)
Fire resistant or fire resistant glass
When it comes to fire prevention, it is essential to choose the materials to be used in the construction, according to their resistance to fire.
For fire resistance, the classes are those of non-combustible, non-flammable or hardly flammable materials.
The glass and glass sheets produced have the best classifications and in particular incombustible, for all monolithic glasses e not flammable, for most of the laminates.
Laminated safety glass
UNI EN ISO 12543
Compound set from two or more layers of glass joined together with one or more plastic interlayers (generally PVB - polyvinyl butyral). in the event of breakage, the interlayer serves to retain glass fragments, limits the size of the opening, provides residual strength and reduces the risk of cuts and perforation.
Accident prevention glass
EN 12600 - pendulum test - impact test method and classification for flat glass.
The test simulates the impact of a human body against a glass plate.
The glass is classified according to the energy necessary to determine its breakage and the methods of breakage (B = typical of laminated glass).
When, due to glass breaking, it is possible to fall into the void from a height ≥ 1 m, only laminated glasses with minimum performance class 1 (B) 1 meet this need.
Burglar-proof and vandal-proof glass
EN 356
Resistance against manual attack - Anti-vandal performance (resistance categories P1A to P5A - steel ball test).
Manual attack and vandalism are often expressed with the throwing of objects thrown in a more or less violent way.
The bodies used and the associated impact energy levels, described by the EN 356 standard ("Glass for building - Safety glass - Testing and classification of resistance to manual attack"), define the performance of glass exposed to this risk .
The laminated glass offers different graduated levels of response to aggression.
Resistance against manual attack - Anti-crime performance (resistance categories P6B to P8B - ax test).
For this field of use, the UNI EN 356 standard provides for resistance tests to repeated ax and hammer blows.
Bulletproof glass
EN 1063
Resistance to pistols and rifles bullets - the standard has defined 7 classes to cover the protection needs with respect to the bullets fired by this weapon (classes from BR1 to BR7).
Resistance to shotgun bullets (SG) - the classification is dealt with specifically in the standard which includes two resistance classes (SG1 and SG2).
We distinguish glasses that under the effect of the bullet produce splinters (S) and those that do not release (NS).
Source: Assovetro.it - http://store.uni.com/
