25
October
2011

UNI EN 12150-1 Glass of soda lime silicate safety glass thermally

By Gianluca Gaggioli published Tuesday, October 25, 2011 in Breaking News Breaking News , Product Planning and Projects |

Above The Glass Ceiling
Creative Commons License photo credit: Ian Sane

This legislation vupòe define tolerances, flatness, machining of the edges, and the characteristics which must be paid in case of fragmentation.

This legislation has the other riferimentile following standards:

EN 572-1 Glass in building - Basic soda lime silicate glass products:

Definitions and general physical and mechanical properties

EN 572-2 Glass in building - Basic soda lime silicate glass products: Float

glass

EN 572-4 Glass in building - Basic soda lime silicate glass products: Drawn

Sheet Glass

EN 572-5 Glass in building - Basic soda lime silicate glass products:

Patterned glass

EN 673 Glass in building - Determination of thermal transmittance

(U value) - Calculation Method

EN 1096-1 Glass in building - Coated glass - Definitions and classification

RES 12600 Glass in building - Pendulum test - Impact test method for flat glass

and performance requirements.

The safety glass based tempered soda lime silicate is realized through a sheet of monolithic glass and must match in case of rottoura fragments with no sharp edges and rounded.

In the process of thermal hardening can come to create deformations of the plate surface, these signs are defined signs of stapling, these deformations must still be within the tolerances specified for the realization of silicate glass, soda lime.

It should be noted that the production process can never generate a totally flat, then you will be able to come to create two tipolgi of curvature:

curvature global

localized curvature

The glass for the measurement of the bending is placed perpendicular to the ground and kept in vertical position by holding the longer sides, the deformations must be verified lumgo the edges of the glass and along its diagonal, said measurement must be carried out at ambient temperature.

For any work on the glass of soda lime silicate remember that after the work hardening should not be cut, sawn, or subjected to processing board so any activities to be undertaken on the document must be strictly carried out the activity before quenching; also for the realization of the holes should be taken into considerations slabs with thickness exceeding AI4 mm, the hole diameter is recalled that misses possibly be less than the thickness of the slab

Their positioning will be affected by:

nominal thickness of the slab

magnitudes of the slab

diameter of the holes

sleep of the glass sheet

quantity of holes to be played on the slab

We speak now of the fragmentation tests of the plates the size of the samples to be tested must be: (please refer to the norm) and each specimen shall be struck with a steel tool with tip in a point located to13 mm from the edge and the middle of the longer side of the same specimen.

How to espi of sharp tools and should be placed as the plate (specimen) is contained in Section 8.3 of the standard.

At the end of the test will be listed in the fragments and tested their measurement, the measurement will be carried out by applying a mask of detection of 50 + / -1 MMAL order to verify exactly how many frmmenti will be generated.

Also characteristics of glass that will be put to the test:

Optical distortion

Anisotropy

Thermal Durability

Mechanical resistance

The marking shall indicate that the glass is soda lime silicate must be strictly follows:

name and mark of the manufacturer

number of European reference standard (in this case EN 12150)

About the author: Gianluca Gaggioli

Gianluca Gaggioli: married, with three children, all born at a short distance, you know how you find the time to "dabble" on the issues of quality and management. For over ten years working in the railway sector and the medical role of "Quality Assurance and Quality Management Systems." Specific competences: Quality Management According to Standards EN ISO 9001, OHSMS, OT24, EN ISO 13485, IRIS (International Railway Industry Standard), Six Sigma, Kaizen, Quality Systems Auditor Certificate 19011 1st / 2nd Party (Internal audits and suppliers) and Enable Trainer RSPP ASPP, since 2008 business consulting services in the field of safety at work; DVR, POS, DUVRI Design plans for safety (organization and management courses workers); June 2011 by Editor-in-Chief of Organization Quality Manager since March 2012 new Quality Management System in Aditech. .

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This entry was posted on Tuesday, October 25, 2011 by Gianluca Gaggioli on Tuesday, October 25th, 2011 at 06:00 and belongs to the category Breaking News Breaking News , Product planning and projects . You can follow any responses to this entry through the feed RSS 2.0 . Leave a comment !

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