US General Services         Administration

Standard Test Method for Glazing and Window Systems Subject to Dynamic Overpressure Loadings


GSA Test Protocol: GSA-TS01-2003  (Issue Date: January 1, 2003) is intended to ensure an adequate measure of standardisation and quality assurance in the testing of window systems including but not limited to glazing, sealants, seats and seals, frames, anchorages and all attachments and/or secondary catcher or restraint mechanisms designed to mitigate the hazards from flying glass and debris.  

To view products that can offer blast resistant properties, see the below links.

Stock items 

Bullet Resistant Transaction Window - Exterior / Interior Bullet Resistant Window with Electronic Speech, Ticket Window.

Night Pay Window / Hatch - A flat fronted Transaction Window with opening drawer, typically uses Petrol Stations and Pharmacies.

BR6  Guard House Transaction Window -Flat fronted Ballistic Window with opening drawer for document transfer. 

All of the above can also be manufactured in bespoke sizes.

Bespoke items 

Blast Resistant Glass -Laminated Blast resistant Glass to incorporate into Blast Windows and Doors                                                  

Blast Windows - Blast windows to protect against terrorist attacks and longer petrochemical explosions

Security Counters and Screens - Physical, Ballistic or Blast resisting counters for any application to keep staff secure.

Ballistic and Blast Resistant Guard Houses - Modular New Build or Upgrading existing. EN1522/3 FB2 to FB7, NIJ 0108.01 LII to IV UL 752.

Explosion Vents and Rupture Panels - Safety devices used to contain an explosive blast effect within a building.

Blast Resistant Doors - Steel manufactured doors offering blast protection to buildings

The GSA-TS01-2003 standard is the sole test protocol by which blast resistant windows and related hazard mitigation technology and products shall be evaluated for facilities under the control and responsibility of the US General Services Administration (GSA).

In order to meet GSA requirements, tests meeting this standard shall produce a blast pressure pulse that rises instantaneously to a peak overpressure, P, and decays with time to produce a positive phase impulse, I.  The actual measured values of P and I shall meet or exceed those required by relevant GSA project or test specifications in accordance with applicable security design criteria.  The pressure-time waveform shall have one primary positive phase peak followed by a decay in pressure.  A negative pressure phase is desired in order to replicate actual explosive loading conditions.

GSA/ISC Performance Conditions for Window Systems Response


Performance Condition Protection Level Hardard Level Description of Window Glazing Responce
1 Safe None  Glazing does not break. No visible damage to glazing and frame
2 Very High None Glazing cracks but is retained by the frame.  Dusting or very small fragments near sill or on floor acceptable. 
3a High Very Low Glazing cracks.  Fragments enter space and land on floor no further than 3.3 ft. from the window
3b High Low  Glazing cracks.  Fragments enter space and land on floor no further than 10 ft. from the window.
4 Medium Medium  Glazing cracks.  Fragments enter space and land on floor amd impact a vertical witness panel at a distance of no more than 10 ft. from the window at a heigh no greater than 2 ft. above the floor.
5 Low High  Glazing cracks and window system fails catastrophically.  Fragments enter space impacting a vertical witness panel at a distance of no more than 10 ft. from the window at a height greater than 2 ft. above the floor.



For our full range of technical specifications please click on relevant headings below; 

Other Blast Standards

EN 13541                   Glass in building - Security glazing - Testing and classification of resistance against explosion pressure 

EN 13123-2               Windows, doors and shutters - Explosion resistance - Requirements and classification

ISO 16933:2007  Glass in Building -- Explosion-Resistant Security Glazing -- Test & Classification for Arena Air-Blast Loading

Attack Specifications

EN 1627   Pedestrian door-sets, windows, curtain walling, grilles and shutters - Burglar resistance - Requirements and classification

EN 356         Glass in building - Security glazing - Testing and classification of resistance against manual attack.

LPS 1175 and 1270 Tool Categories   Testing procedures for the LPCB approval

LPS 1175 Requirements and testing procedures for the LPCB certification and listing of intruder resistant building components, strongpoints, security enclosures and free-standing barriers

LPS 1270   Intruder Resistant Security Glazing -  Requirements & Testing Procedures 

 Ballistic Technical Specifications

EN 1063               Glass in Building - Security Glazing - Testing and Classification of Resistance Against Bullet Attack

UL 752                   Standard for Bullet-Resisting Equipment

BS 5051                Bullet-resistant glazing - Part 1:  for interior use- Part 2: for Exterior use

NIJ 0108.01      US National Institute of Justice Standard-Test and Certification for Ballistic Resistant Materials

EN 1522/3          Windows, doors, shutters and blinds - Bullet resistance - Requirements and classification /Test method

Fire Specifications

UL 10C           Positive Fire Pressure Tests of Door Assemblies 

EN 1363-1    Fire resistance tests –Part 1: General Requirements

EN 1364-1     Fire resistance tests for non-load-bearing elements – Part 1: Walls

BS 476 Part 22     Fire tests on building materials and structures

EN 1634-1   Fire resistance and smoke control tests for door and shutter assemblies, openable windows and elements of building hardware 

This is an extract not a full report and Architectural Armour Ltd accepts no liability for any loss, direct, indirect or consequential damage incurred by using this information, to the fullest extent permitted by law. You should make your own judgement as regards use of this document and seek out the full test standards.

Latest News

Split Height Transaction Window Duo 

Using experience on previous projects and customers requirements we have designed a split height transaction window offering standing and DDA access to reception and data centre environments.

2 Position Screen


For more information and pricing please contact our office on info@architecturalarmour.com or +44(0)1981 257000



Read more

Increased Stock for Express Delivery

We have increased our range of stock transaction windows to six units , ready for express dispatch.

Our range of transaction windows include, physical attack resistant and bullet resistant internal and external models. Please see below an outline of our products.

Architectural Armour are offering standard stock items and bespoke orders to suit.  Please contact us on +44(0) 1981 257000 



Stock Transaction Windows













Read more