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Dive into the BS EN 13823:2020 test process, where we assess building products' reaction to thermal attack by a single burning item. SINGLE BURNING ITEM (SBI) TESTING BS EN ISO 13823:2020 WHAT IS A SINGLE BURNING ITEM (SBI) TEST? This procedure specifies a method of test for determining the rection to fire performance of construction products when exposed to thermal attack by a single burning item (SBI). The test specimen consists of 2 vertical wings forming a right-angled corner. The dimensions of the wings are: The long wing: 1500mm high x 1000mm long. The short wing 1500mm high x 500 + (thickness of long wing) mm long The maximum thickness shall be no more than 200mm. If the product is thicker than 200mm, then thickness shall be reduced on the unexposed side. The samples must be conditioned, a minimum of 3 samples must be tested. The extraction is set to a volume flow of 0.6=-0.05m³/s. Each test specimen is then fixed in the trolley and is exposed to a flame from a burner placed at the bottom of the corner. The flame is obtained by combustion of propane gas and gives heat output of 30.7±2kW. The flame is applied for 20 mins. The test apparatus measures the following: Temperatures of exhaust gases Volume flow in the exhaust Light attenuation (for measurement of smoke density) O2 and CO2 mole fraction of the exhaust gases. These quantities are recorded automatically and are used to calculate the Heat Release Rate (HRR) and Smoke Production Rate (SPR). A visual observation is also measured for flaming droplets an horizontal spread of flame. HRR is used to calculate FIGRA (fire growth rate) at 0.2 and 0.4MJ, and SPR is used to calculate SMOGRA (smoke growth rate). The test report is then written by the highly experienced UKTC team. WHAT PRODUCT CLASSIFICATIONS REQUIRE BS EN 13823:2020 TESTING? The Single Burning Item (BS EN 13823:2020) test would be required in order to achieve a product classification of A2, B, C and D: A1 A2 B C D E F How to Read Product Classifications

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

Discover the non-combustibility test (BS EN ISO 1182:2020) for construction products, ensuring they won't contribute to fire. Understand the testing process and outcomes here. Learn More. NON-COMBUSTIBILITY TESTING BS EN ISO 1182:2020 WHAT IS A NON- COMBUSTIBILITY TEST? This test identifies products that will not, or not significantly, contribute to fire, regardless of their end use. The fire test has been developed to selected construction products which produce a very limited amount of heat and flame when exposed to temperatures of approximately 750 °C. The test specimen shall be taken from a sample which is sufficiently large to be representative of the product and shall be cylindrical with a volume of 76 ± 8cm³ and diameter of 45+0mm and a height of ± 3mm. For non-homogenous (e.g., layered, or composite products) – each component or layer shall be tested separately. A minimum of 5 samples shall be tested for classification. After conditioning the samples must be dried in an oven at 60±5°C for 20-24hr. Prior to testing each sample is weighed to an accuracy of 0.01g. The samples are then inserted into a furnace that has been stabilised at 750 ±5°C for a minimum period of 30 min. The following data is recorded: Temperature of the furnace Temperature of the specimen centre and surface Any sustained flaming (3s or longer) The sample is then removed, allowed to cool, and weighed again. The test report will show: Mass loss (%) of each sample. Temperature rise of each sample Any sustained flaming WHAT PRODUCT CLASSIFICATIONS REQUIRE BS EN ISO 1182 TESTING? The Non-Combustibility (BS EN 1182:2020) test would be required in order to achieve a product classification of A1 and A2*: A1 A2 B C D E F * *not required if conducting BS EN ISO 1716 test How to Read Product Classifications

Learn more about the team behind delivering fire resistance and reaction to fire testing for passive fire protection product manufacturers. Our Team Mark Shaw Reaction to Fire Technical Officer Mark joined UKTC following his time at University. His passion for learning new skills has earned him a key position in the Reaction to Fire laboratory as a Technical Officer. He is responsible for the day-to-day management of Reaction to Fire tests of construction products, Meet the team Learn more about the team dedicated to delivering leading fire testing and certification services. Our Team

Learn more about the team behind delivering fire resistance and reaction to fire testing for passive fire protection product manufacturers. Our Team Rob Grant Technical Officer Robert’s UKTC career started in October 2021 as a Trainee Technical Surveyor after graduating with a degree in Building Surveying. Robert’s hands-on approach to project management and training seen him promoted to Technical Officer in the following years and nominated for the Association of Specialist Fire Professionals’ (ASFP) Rising Star of the Year award for 2024. Meet the team Learn more about the team dedicated to delivering leading fire testing and certification services. Our Team

Learn about the determination of gross heat of combustion test (BS EN ISO 1716:2018), a critical method for assessing a product's potential maximum total heat release. GROSS HEAT OF COMBUSTION TESTING BS EN ISO 1716:2018 WHAT IS A GROSS HEAT OF COMBUSTION TEST? This test determines the potential maximum total heat release of a product when completely burned, regardless of its end use. This method determines the absolute value of the heat of combustion for a product without accounting for inherent product variability. The mass per unit area of each non-substantial component must be provided by the client or calculated in the laboratory. A minimum of 50g from a homogenous product or substantial component and 10g from any non-substantial component is to be sampled, ground into a fine powder and conditioned. After conditioning a 0.5g sample is selected and placed in a crucible inside the pressurised vessel (bomb), together with combustion aids if necessary (benzoic acid or paraffin oil). The bomb is then filled with 99.5% pure oxygen to a pressure of 30MPa. The bomb is then inserted into the testing apparatus which fills with water and the sample is ignited. The test apparatus measures the rise in temperature of the water and calculates the calorific value of the sample, considering any combustion aids. A total of 5 samples of each component are tested. The report will show the calorific value of each project in MJ/kg, Mj/m2 for each non-substantial component, and the total calorific value of the entire product. WHAT PRODUCT CLASSIFICATIONS REQUIRE BS EN ISO 1716:2018 TESTING? The Gross Heat of Combustion (BS EN 1716:2018) test would be required in order to achieve a product classification of A1 and A2*: A1 A2 B C D E F * *not required if conducting BS EN ISO 1882 test How to Read Product Classifications

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 Eddie Wilson Technical Surveyor Eddie graduated the City of Glasgow College with an HND in Computer Aided Architectural Design and Technology before spending over 18 months as a CAD technician in the Telecoms industry. He joined UKTC in March 2024 and uses his CAD expertise to conduct fire resistance test specimen surveys, create and update drawings. Meet the team Learn more about the team dedicated to delivering leading fire testing and certification services. Our Team

Experience the best in fire safety with UKTC. Our UKAS accredited laboratory provides leading testing, inspection, and fire certification services in the UK, ensuring product safety and compliance. Trust us to ensure your peace of mind. About Us United Kingdom Testing & Certification (UKTC) deliver market-leading testing solutions for passive fire product manufacturers across the UK and Europe. Down At United Kingdom Testing and Certification (UKTC), we provide market leading solutions for end-to-end testing, inspection and full fire certification. We help clients to demonstrate their commitment to safety and compliance with all appropriate standards and building codes. In the complex and ever-changing environment we now find ourselves in, there’s never really been a time when there has been more scrutiny over the fire safety of the products and systems that are used to construct the building we live and work in everyday. With our industry leading UKAS accredited testing Laboratory No. 21542 that is equipped with the latest fire resistance testing equipment, we are able to test to a number of international standards including British Standards (BS) and European Standards (EN). Our team are able to offer a comprehensive range of fire resistance and reaction to fire testing with an industry leading report turnaround time. 1/1 Speak to us about your needs United Kingdom Testing & Certification was acquired by SOCOTEC UK & Ireland earlier this year. The acquisitions strengthens UKTC's position as the UK's fire testing partner of choice and opens the door to expanded capabilities, investment and long term growth. SOCOTEC is the UK's leading provider of testing, inspection and compliance services with comprehensive solutions in the infrastructure, environment, building & real estate and advisory sectors. What this Means for UKTC Customers You'll continue to work with the same friendly, knowledgeable team that you already know. There are no changes to our service model. You can expect the same industry-leading turnaround times that you've always received. SOCOTEC CEO Hervé Montjotin said: “The move aligns with SOCOTEC Group’s global expertise in fire safety, with over 300 fire safety experts worldwide, allowing the UK operation to leverage internationally held knowledge and skillsets from across the company’s presence in 27 countries. SOCOTEC’s global fire and building safety portfolio includes specialised centres of excellence across Europe, the Middle East and the USA.” To learn more about SOCOTEC UK & Ireland, visit the website by clicking here . Meet the team Meet the team Discover more about the team committed to ensuring life safety through the delivery of an industry-leading test experience. What our clients say about us "The whole team are professional and coureous. Excellent Services. Always happy to recommend." Our Mission Trusted to ensure. Why UKTC's mission is to ensure life-safety by empowering businesses to showcase their compliance. The "why" behind our existence lies in the fundamental belief that adherence to regulations and standards is paramount for preserving life and property. By facilitating businesses in demonstrating their commitment to compliance, we contribute to a safer built environment. We recognize that life-safety is a collective responsibility, and our "why" embodies the ethos of fostering a culture where businesses actively participate in upholding the highest standards to protect communities and assets. How The "how" of UKTC's approach is defined by four pillars: accuracy, efficiency, conscientiousness, and innovation. Accuracy ensures that our work is reliable and carried out with the upmost integrity, leaving no room for error. Efficiency is embedded in our workflow, streamlining processes to deliver results promptly for our customers without compromising quality. Conscientiousness guides our actions, emphasizing the thoroughness and diligence required in every body of work that we undertake. Innovation propels us forward, constantly seeking out the state of the art to improved our services. What We Test, Inspect, and Certify regulated products, processes, and persons. Our customers entrust us with the critical responsibility of evaluating and validating compliance across a spectrum of domains. Testing involves rigorous assessments to ascertain the functionality and safety of products. Inspection delves into the thorough examination of processes to ensure adherence to established standards. Certification is the culmination, providing official recognition of compliance. Through this suite of services, we build a foundation of trust with our customers, assuring them that their products, processes, and personnel meet or exceed the necessary regulatory benchmarks. UKTC | Trusted to Ensure. Play Video Facebook Twitter Pinterest Tumblr Copy Link Embed Video Link Copied

Calculate the risk to your business as we approach the 2029 removal of BS 476 from Approved Document B. TRANSITIONING FROM BS 476 EVIDENCE Calculate Your Risk Together with industry experts, we've created a short form that lets you calculate the risk to your business in just a couple of minutes. LET'S START

Learn more about the team behind delivering fire resistance and reaction to fire testing for passive fire protection product manufacturers. Our Team Aditi Bapte Technical Officer Aditi joined UKTC's Technical team in November 2023 as a Technical Surveyor before making the move to Associate Technical Officer in September 2024. In her latest role, Aditi is responsible for the management and reporting for Fire Resistance tests across an array of building products. Meet the team Learn more about the team dedicated to delivering leading fire testing and certification services. Our Team

Learn more about the team behind delivering fire resistance and reaction to fire testing for passive fire protection product manufacturers. Our Team Andrew Jeffrey Graphic Designer 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