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Explore the Single Flame Source Test (BS EN ISO 11925-2:2020) which assesses a product's ignitability by direct small-flame impingement. Dive into the test process and criteria here SINGLE FLAME SOURCE TESTING BS EN ISO 11925-2:2026 WHAT IS A SMALL FLAME SOURCE TEST? This method specifies a test for determining the ignitability of products by direct small-flame impingement under zero impressed irradiance using vertically oriented test specimens. The test specimens are cut from a sample which is representative of the product to be tested (e.g. it shall be tested as an assembly of component and not individually). When a substrate is used a specimen must be tested with a substrate representative of the end-use application. Each specimen is 250 ±2mm long and 90 ±2mm vide and are conditioned in accordance with 2.3. The samples are tested with 2 exposure conditions to a 20mm flame: Surface exposure – 40mm above bottom edge Edge exposure – at the bottom of the specimen 6 samples must be tested in each exposure – a total of 12 samples. The flame is applied for 15 or 30s, depending on the classification sought. The pass/fail criteria for classification are spread of flame to 150mm for the application of the burner flame. BS EN ISO 11925-2:2026 was published on 31st January 2026 and supersedes the BS EN 11925-2:2020, which is now withdrawn. WHAT PRODUCT CLASSIFICATIONS REQUIRE BS EN ISO 11925-2 TESTING? The Single Source Flame (BS EN ISO 11925-2:2026) test would be required in order to achieve a product classification of B, C, D, E and F: A1 A2 B C D E F How to Read Product Classifications

Obtain a no obligation quote for your fire testing requirements from United Kingdom Testing & Certification. Your quote will be in your inbox within 1 working day. FIRE RESISTANCE TESTING DELIVERED AT INDUSTRY-LEADING TURNAROUND TIMES. UKTC is a UKAS accredited testing laboratory, offering a comprehensive range of fire resistance serivces. Following a £2.5 million investment in a second furnace, we now offer vertical testing up to 5 metres and horizontal testing up to 4 metres - combining proven expertise with expanded capability. Make an enquiry UKAS Accredited Laboratory New 5 metre Vertical Furnace 3x4 metre Horizontal Testing Full BS and EN standards OUR FIRE RESISTANCE TESTING SERVICES Doorsets & Hardware We provide accredited, independent fire door testing as well as door hardware including locks and latches, hinges, door closing devices, panic exit devices and door furniture. Walls & Partitions We provide fire resistance testing of walls and partitions to BS, EN, and International standards for load bearing and non-load bearing systems. Glazing Systems Our UKAS accredited testing laboratory is able to perform fire resistance testing for fire rated glazing, glazing seal systems, and composite glazing screens and windows. Penetration Seals Penetration seals testing confirms the compliance of the seal with building codes and standards to ensure that that the seals maintain their protective properties during a fire. Linear Joint Seals Linear joint seal testing assesses the effect of a linear joint seal on the integrity and insulation of the construction. REQUEST A QUOTE OR A CALL-BACK Want to make an enquiry? Please fill out this form and a member of our team will reach out to you as soon as possible. We aim to respond to all messages within 1 working day of your request. During exceptionally busy spells this may stretch to up to 3 days. If your enquiry is urgent, you can call our office on 01355 433 122.

Learn more about the team behind delivering fire resistance and reaction to fire testing for passive fire protection product manufacturers. Our Team Barry Steven Laboratory Manager Barry started his UKTC career in the technical team and now oversees the daily operations of our UKAS accredited Fire Resistance laboratory Meet the team Learn more about the team dedicated to delivering leading fire testing and certification services. Our Team

Expand your scope with UKTC's EXAP reports. We predict performance based on test results, achieving broader application while maintaining or improving performance. EXAP - EXTENDED FIELD OF APPLICATION An extended field of application report is the prediction of performance based on one or more test results. It enables a wider scope of application to be achieved than what was initially tested, whilst maintaining or improving the performance. WHY EXAPS ARE CRUCIAL FOR PRODUCT MANUFACTURERS Extended Field of Application (EXAP) Reports allow manufacturers of passive fire protection products to maximise the scope of their product. By using existing BS EN test evidence, manufacturers can minimise the need for further testing by using the extension rules set out within the EXAP standard. As the industry moves towards the 2nd of September 2029 removal of BS 476, EXAPs will be key to manufacturers transitioning from BS 476 fire resistance test evidence to BS EN evidence. EXAP REPORT STANDARDS United Kingdom Testing and Certification undertake EXAP reports for fire resistance and/ or smoke control for door, shutter and openable window assemblies under BS EN 15269-1. Standards BS EN 15269-2 - Fire resistance of hinged and pivoted steel doorsets. BS EN 15269-3 - Fire resistance of hinged and pivoted timber doorsets. BS EN 15269-5 - Fire resistance of hinged and pivoted metal framed glazed doorsets and openable windows. BS EN 15269-7 - Fire resistance of steel sliding doorsets. BS EN 15269-10 - Fire resistance of steel rolling shutter assemblies. BS EN 15269-11 - Fire resistance of operable fabric curtains. BS EN 15269-20 - Smoke control for doors, shutters, operable fabric curtains and openable windows. THE KEY ADVANTAGES OF EXAP REPORTS IMPROVED COST CONTROL By covering as many variations of your product as applicable in as few tests as possible, EXAP reports massively benefit manufacturers, saving time and money. GREATER PRODUCT FLEXIBILITY Manufacturers gain better visibility over product specifications, sizes, and production options. Greater flexibility allows you to respond quickly to client needs, offer more customised solutions, and remain competitive in a demanding market. TRANSITIONING FROM BS TO BS EN EVIDENCE As the September 2029 deadline approaches, manufacturers relying on BS 476 evidence will need a plan for testing and an EXAP to maximise their scope coverage. By utilising the EXAP route, manufacturers can minimise their testing, protect their investment and get their products to market ahead of the deadline. CALCULATE THE RISK TO YOUR BUSINESS We've created a short form to help you identify the risk to your business as the September 2020 deadline for BS 476 evidence approaches. The form takes no longer than a few minutes and could help you take your first steps towards BS EN testing and EXAPs. Click the button below to get started. RISK CALCULATOR WHY CHOOSE UKTC? UKAS ACCREDITED LABORATORY As a UKAS accredited testing laboratory for ISO/IEC 17025:2017, we are trusted to deliver robust, accurate fire resistance testing as well as EXAP and Classification reports. TEAM LED BY INDUSTRY EXPERTS Our dedicated Technical Services department consists of decades of experience within the manufacturing and testing industry. They understand the needs of a customer and will ensure you're able to maximise your scope and the return on your investment. UNMATCHED CUSTOMER SERVICE We work with precision and at pace to ensure you can get your products to market as quick as possible whilst delivering a best-in-class testing, certification and technical services journey. READY TO GET STARTED? Get in touch with us today and find out how our technical services experts can assist you in your EXAP journey. Get in touch

Boost your product's reputation with UKTC's certification services. From UKCA Marking to EXAPS, we provide high-quality, reliable technical & certification services. Technical Services Our technical services offer the opportunity for customers to demonstrate the enhanced quality and application of their products to their marketplace. Extended Field of Application & Classification Reports Our Technical Services team deliver Extended Field of Application (EXAPs) and Classification reports for manufacturers looking to prove the performance and extend the use of their products. As the 2029 deadline approaches for removal of BS 476 fire resistance test evidence, EXAPs will be critical to manufacturers transitioning their evidence. Check our interview with UKTC's Senior Technical Services Officer, Tom Smith, to learn more. EXAPs Reports An extended field of application report is the prediction of performance based on one or more test results and it enables a wider scope of application to be achieved than what was initially tested. Read more Button Classification Reports Classification Reports certify the fire performance of building elements that have been subjected to relevant reaction to fire and fire resistance tests. Read more Button Downloads UKTC | Our Services Brochure UKTC | Ensure Brochure

UKTC's new fire resistance laboratory offering testing of specimens 3 meters wide and up to 5 meters tall will be opening in the summer of 2026. A New Fire Resistance Laboratory. Built for you. Combination Furnace As part of a £2.5 million investment, UKTC can now offer both vertical and horizontal fire testing from its UK based laboratory. The expanded fire resistance service includes one of the UK’s only combination furnaces, allowing manufacturers flexibility to test in either a: 3 x 3m Vertical Furnace Configuration 3 x 4m Vertical Furnace Configuration 3 x 5m Vertical Furnace Configuration 3 x 4m Horizontal Furnace Configuration Additional Test Methods As part of the expanded service offering, new test methods will be available for manufacturers at UKTC to utilise the new fire resistance furnace. These include: Walls & Partitions (up to 5 meters) BS EN 1364-1:2015 Floors (Load-bearing) BS EN 1365-2:2014 Steel Protection / Encasement BS EN 13381-4:2013 Floors (Non Load-bearing) BS EN 1364-2:2018 Doorset Hardware - methods C & D BS EN 1634-2:2008 Enquire Now "There is growing demand for a new laboratory in the UK. This investment will directly contribute to a safer built environment; generating greater availability for the construction market." Andrew Hutchison, Operations Director, UKTC Request a Quote Be amongst the first to test in our new fire resistance laboratory by enquiring below. We aim to respond to your enquiry within 1 working day Button Testing Reaction to Fire Button Technical Classification Reports Button Certification UKTC ensure™ Button Testing Doorsets & Hardware Button Technical EXAP Reports Button Testing Walls & Partitions

Learn more about the team behind delivering fire resistance and reaction to fire testing for passive fire protection product manufacturers. Our Team Andrew Jeffrey Brand & Marketing Officer Andrew joined UKTC in March 2024 following time at a post-production house in Glasgow where he produced visual effects (VFX), branding and motion graphics for film, tv and leading international brands. Now in the role of Graphic Designer, Andrew supports the marketing efforts of UKTC by building the visual identity of the brand and creating visually appealing marketing content to support both the online and offline channels of the business. Meet the team Learn more about the team dedicated to delivering leading fire testing and certification services. Our Team

A scope analysis helps manufacturers minimise the amount of fire testing required to cover their scope. This is crucial for companies relying on BS 476 evidence. SCOPING ANALYSIS A Scoping Analysis is an expert review of your product range and wish list for coverage through fire testing. This exercise will minimise the number of fire resistance tests required to achieve the maximum scope coverage by using Direct Field of Application (DIAP) and Extended Field of Application (EXAP) rules. THE PATHWAY TO AN EXTENDED FIELD OF APPLICATION USING A SCOPING ANALYSIS The purpose of the Scoping Analysis exercise is to maximise the coverage of your fire test evidence and minimise the number of tests required. How long does a Scoping Analysis take? Every scope is unique to a manufacturer and the timeline will be agreed in advance. On average, this exercise is complete within two weeks. Why does the Scoping Analysis route lead to an Extended Field of Application? To minimise the amount of testing and investment required to achieve a full scope, for many manufacturers the solution will be an Extended Field of Application. This offers a greater scope of options than the very limited Direct Field of Application (DIAP) and will be crucial for manufacturers transitioning their test evidence from BS 476 to BS EN ahead of September 2029. Who can issue an Extended Field of Application Report? UKAS Accredited Laboratories can issue Extended Field of Application Reports. This be achieved by an industry-expert that knowledge of both fire resistance testing and the rules of the BS EN 15269 Extended Field of Application standards. What does a Scoping Analysis cost? A Scoping Analysis can start at £4,500 and vary depend on the complexity of the scope. 01 DISCOVERY SESSION Our technical experts will work with your team to define a "wish list" of configurations and components to be covered by your evidence. Existing evidence will be reviewed and used to identify gaps in your product coverage. 02 DEFINED SCOPE & TIMELINE Following completion of the Scoping Analysis, our team will create a tailored, recommended fire test program that will maximise your scope coverage in the least amount of tests. 03 FIRE TESTING It is then the responsibility of the manufacturer to produce and complete the proposed fire resistance test program. Upon completion of the program the test reports can be submitted to our Technical Services team to create an EXAP. 04 EXTENDED FIELD OF APPLICATION REPORT An Extended Field of Application, and subsequent Classification Reports, can be developed and issued following receipt of all test evidence. The timeline for an EXAP is subject to the number of test reports and range of scope. READY TO GET STARTED? Get in touch with us today and find out how our technical services experts can maximise your fire testing investment. Get in touch

We've created a list of the most common questions related to fire testing & certification to help you navigate it. If you can't find what you're looking for, as our team. Fire Testing & Certification Frequently Asked Questions It's easy to be overwhelmed with the amount of information related to the fire testing & certification of products. We've pulled together some of the most common question below to help you. If your question isn't answered below, contact one of our team and we will get back to you. Frequently asked questions General Fire Resistance Testing Reaction to Fire Testing Technical Services How long does it take to get results? On completion of the test, the responsible officer will confirm the results within 24 hrs. This will be followed by a comprehensive draft report within 14 days. Can my product be changed from what was tested? Unlike fire resistance tests under British Standards, European standards provide a Direct Field of Application (DIAP) which detail the permissible changes from what was tested. An Extended Field of Application (EXAP) can also be undertaken which offers a great scope of variations than a DIAP. What is third-party certification? Third-party certification is independent verification that a product or service fulfils certain criteria. With passive fire protection products, this normally involves a certification body assessing test results, carrying out a factory production control audit and undertaking periodic inspections to ensure constancy of performance. UKTC work with many approved certification providers, including Bluesky Certification, IFC Certification and UL Solutions. What is UKCA Marking? UK Conformity Assessed (UKCA) marking is the new product marking which will be required for certain products placed on the market in Great Britain (England, Wales and Scotland). Does my product require UKCA Marking? The Construction Products Regulation in Great Britain states that any Construction Product covered by a UK Designated Standard must be UKCA marked. ASK OUR TESTING & CERTIFICATION EXPERTS Contact our team of testing & certification experts for more information. We aim to get back to you within 4 hours Get in touch

UKTC's privacy policy for collecting data on website users and email recipients. Privacy Policy What information do we collect about you? We collect information about you when you register with us or place an order for services or products. We also collect information when you voluntarily complete customer surveys, provide feedback and participate in competitions. Website usage information is collected using cookies. How will we use the information about you? We collect information about you to process your order, manage your account and, if you agree, to email you about other products and services we think may be of interest to you. We use your information collected from the website to personalise your repeat visits to our website. If you agree, we shall pass on your personal information to our group of companies so that they may offer you their products and services. United Kingdom Testing and Certification will not share your information for marketing purposes with any external companies. In processing your order, we may send your details to, and also use information from credit reference agencies and fraud prevention agencies. Emails Emails sent by United Kingdom Testing & Certification employees are intended only for the named individuals. If you are not the named addressee you should not replicate or distribute the email. Please notify the sender immediately by email. Email transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete. Marketing We would like to send you information about products and services of ours and other companies in our group which may be of interest to you. If you have consented to receive marketing, you may opt out at a later date. You have a right at any time to stop us from contacting you for marketing purposes. If you no longer wish to be contacted for marketing purposes, please contact us. Access to your information and correction You have the right to request a copy of the information that we hold about you. If you would like a copy of some or all of your personal information, please contact us. We may make a small charge for this service. We want to make sure that your personal information is accurate and up to date. You may ask us to correct or remove information you think is inaccurate. Cookies Cookies are text files placed on your computer to collect standard internet log information and visitor behaviour information. This information is used to track visitor use of the website and to compile statistical reports on website activity. For further information visit www.aboutcookies.org or www.allaboutcookies.org . You can set your browser not to accept cookies and the above websites tell you how to remove cookies from your browser. However, in a few cases, some of our website features may not function as a result. Other websites Our website contains links to other websites. This privacy policy only applies to this website so when you link to other websites you should read their own privacy policies. Changes to our privacy policy We keep our privacy policy under regular review, and we will place any updates on this web page. This privacy policy was last updated on 10th February 2021. How to contact us Please contact us if you have any questions about our privacy policy or information we hold about you.

Access and download UKTC's Terms of Business on this page. Understand our guidelines, procedures, and regulations to ensure a smooth and efficient business experience. Essential for all clients engaging in our fire safety testing and certification services. Terms & Conditions Terms and Conditions of Sale