April 30, 2020

ASTM E/EM: Standard Practice for Design and Performance of Supported Laminated Glass Walkways. of breakage (POB) of 8/ from the appendix of ASTM E, these allowable stresses While ASTM E () does address point loads as design. testing to ASTM F Test Method. • Testing program 41kPa,. kPa-msec ASTM E Standard. Practice. – Calculation method. • Determine glass.

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The premises safety experts at Robson Forensic have investigated many xstm involving broken glass, falling glass panels, and pedestrian collisions with doors, windows, and other partitions.

Building Glass & Premises Safety – Expert Article

His discussion covers the various asmt of glass, the use of glass in windows, doors, and partitions, and relevant safety standards. Depending on its age, condition and thickness, float glass can break and shatter under human impact. Such assemblies shall comply with the fire-resistance rating requirements of this code where applicable.

Values derived from Practice ETable X9. The first is the likelihood of being cut during the impact; the second involves the qstm of many people to pull their body, arm, or leg away from the glass. Types of modern glass include: Existing float glass can be covered with guards or a transparent film to prevent it from shattering and most glass can be easily removed and replaced with an appropriate safety glazing material.

When someone impacts float glass, the danger is twofold. Old float or wired glass still in use where modern standards require safety glazing products; improperly installed replacement glass panels and tempered or heat strengthened glass which fail during use; and inadequately marked or protected glass panels which cannot be reliably identified can all result in injury.

As a former hearing officer on the AIA National Ethics Council, and now a testifying expert in construction disputes, I have seen my share of These products are less likely to break when subjected to impact and less likely to cause serious injury if broken. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided xstm part of the standard. The area of any single vision panel shall be not less than 24 square inches 15 mm 2 and the total area of one or more vision panels in any hoistway door shall be not more than 85 square inches 54 mm 2.


Written into fire and life safety codes for much of ee2751 50 years, wired glass can still be found in buildings today.

This standard includes performance, design, and safe behavior considerations. Tempered glass shall be permitted to be used for lining walls and ceilings of elevator cars provided: Stay up to date with weekly communications from Robson Forensic – Substantive technical articles, safety practices across various industries, contact information from featured experts.

Float glass was the most common type of glass used in ast, until recent times. This article was developed in concert with other members of the Premises Safety practice group. Asttm it shatters, float glass breaks into shards that are sharp and pointed. The glass in glass hoistway doors shall be not less than 60 percent of the total visible door panel surface area as seen from the landing side. The glass is not subjected to further treatment such as sandblasting; etching; heat treatment or painting that could alter the original properties of the glass.

His expertise in facility design, construction, and architectural professional practice, along with his extensive experience in the premises safety aspects of the built environment, are applied to relevant forensic casework. Issues that are common to all walkways, such as slip resistance, are addressed in existing referenced standards. Submit an inquiry or contact the author of this article to discuss your case and how we can assist.

Laminated Glass has two separate pieces of annealed, heat strengthened or tempered glass sandwiched around a layer of clear polyvinyl butaryl PVB.

ASTM E – 11 Standard Practice for Design and Performance of Supported Glass Walkways

Glass in elevator car enclosures, glass elevator car doors and glass used for lining walls and ceilings of elevator cars shall be laminated glass conforming to Class A in accordance with ANSI Z According to the National Safety Council, hundreds of people are e27511 each year through their encounter with broken float glass.

If damage of any kind occurs, the walkway shall be cordoned off and the installation shall be inspected to ensure structural integrity and pedestrian safety of the system. It is the responsibility of the user of this w2751 to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. A heavier form of this glass is float glass.

Depending upon where and how they are used, even these products can be hazardous. Without appropriate markings, people can unintentionally walk into these features and become injured without breaking the glass.


Generally, they are the areas surrounding a doorway and places where it is foreseeable that a person could walk and encounter glazing, such as patios, and fully glazed storefronts. Storefronts and glazed curtainwalls may not be reliably identified by people walking nearby and they can easily be confused with an open walking path.

Building Glass & Premises Safety – Expert Article

Under impact, body parts can break the glass, and the embedded wires present a significant risk of injury. Glass installed in hoistways and hoistway doors where the hoistway is required to have a fire-resistance rating shall also comply with Section Commonly referred to as safety glazing, heat strengthened, laminated, and tempered glass, as well as ceramic, plastic and astj products are now commonly used glazing materials in areas subject to the likelihood of human impact.

In this article, architect and premises safety expert, Anthony Shinsky discusses various aspects of flooring that influence pedestrian safety.

It addresses the characteristics unique to glass and laminated glass.

These shards can easily ashm flesh and tendons, and the results can be severe or even deadly. Your message has been received – we will be in touch shortly.

For assistance determining which expert is best qualified to investigate the specific technical aspects of your case, please contact your local Robson Forensic office or submit an inquiry through our website.

Link to Active This link will always route to the current Active version of the standard.

Section 2409 Glass in Walkways, Elevator Hoistways and Elevator Cars

A glass stress reduction factor may be astn for some acid etched or asfm glasses; consult the manufacturer. The glass is bonded to a nonpolymeric coating, sheeting or film backing having a physical integrity to hold the fragments when the glass breaks. Share URL Copy and paste the link below into emails, chats or browsers. If you have specific questions or need immediate assistance, please contact us directly at Heat Strengthened Glass H.

Floor to ceiling storefronts, shopping malls, restaurants, office buildings, and other commercial environments often include these features. Laminated glass products may break, but are held together by an interlayer of plastic or polymer reducing the likelihood of exposure to sharp edges.

What is a Safe Floor?