{"id":874,"date":"2026-09-15T09:42:12","date_gmt":"2026-09-15T01:42:12","guid":{"rendered":"https:\/\/brt-testing.com\/?post_type=product&p=874"},"modified":"2026-09-23T14:14:31","modified_gmt":"2026-09-23T06:14:31","slug":"gross-heat-of-combustion-tester","status":"publish","type":"product","link":"https:\/\/brt-testing.com\/it\/product\/gross-heat-of-combustion-tester\/","title":{"rendered":"JRZ10 Gross Heat of Combustion Tester for Building Materials"},"content":{"rendered":"

<\/p>\n

The JRZ10 Gross Heat of Combustion Tester for Building Materials (ISO 1716 Bomb Calorimeter)<\/strong> is a fully automated constant-temperature oxygen bomb calorimeter engineered strictly in accordance with ISO 1716:2018<\/strong>, EN 13501-1 (Euroclass A1\/A2)<\/strong>, GB\/T 14402-2026<\/strong>, ASTM D5865<\/strong>, and ASTM D240<\/strong> standards. It is designed to evaluate the gross calorific potential (PCS \/ Gross Heat of Combustion) of building products, flame-retardant polymers, railway interior materials, fuels, and chemical substances.<\/p>\n

Featuring an ultra-fine temperature resolution of 0.0001\u00b0C, an automated double-layer water jacket system with precision volume balancing (<0.5g error), an imported high-speed circulation stirrer, and dedicated Windows microcomputer testing software, this advanced ISO 1716 Bomb Calorimeter<\/strong> delivers rapid, highly repeatable calorific determinations for third-party fire certification labs, building material manufacturers, railway safety institutes, and energy inspection centers.<\/p>\n

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Gross Heat of Combustion Tester Compliance & International Standards<\/h3>\n

This ISO 1716 bomb calorimeter enables certified testing facilities to conduct formal calorific value evaluations across global reaction-to-fire classification frameworks:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Standard Code<\/th>\nStandard Title & Scope<\/th>\nPrimary Testing Application<\/th>\n<\/tr>\n<\/thead>\n
ISO 1716:2018 \/ BS EN ISO 1716<\/strong><\/td>\nReaction to fire tests for building products \u2014 Determination of the gross heat of combustion (calorific value)<\/td>\nInternational benchmark method for European Euroclass A1\/A2 non-combustible classification<\/td>\n<\/tr>\n
EN 13501-1<\/strong><\/td>\nFire classification of construction products and building elements \u2014 Reaction to fire classification<\/td>\nMandatory European classification for A1 and A2 non-combustible building materials<\/td>\n<\/tr>\n
EN 45545-2 \/ IMO FTP Code<\/strong><\/td>\nRailway applications & International Maritime Organization Fire Test Procedures for non-combustibility<\/td>\nFire safety compliance for railway vehicle interiors, marine deck divisions, and insulation panels<\/td>\n<\/tr>\n
GB\/T 14402-2026<\/strong><\/td>\nReaction to fire tests for building products \u2014 Determination of the gross heat of combustion<\/td>\nMandatory Chinese national standard for building product fire safety evaluation<\/td>\n<\/tr>\n
ASTM D5865 \/ ASTM D240<\/strong><\/td>\nStandard Test Methods for Gross Calorific Value of Coal, Coke, and Liquid Hydrocarbon Fuels<\/td>\nCalorific capacity testing for solid fuels, biomass, petroleum products, and energetic chemicals<\/td>\n<\/tr>\n
GB\/T 213-2008<\/strong><\/td>\nStandard test method for calorific value of solid fuels<\/td>\nCalorific capacity testing for coal, biomass, and solid combustible fuels<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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<\/p>\n

Technological Features of JRZ10 ISO 1716 Bomb Calorimeter<\/h3>\n
    \n
  • Ultra-High 0.0001\u00b0C Temperature Resolution:<\/strong> Driven by high-precision PT100 temperature sensors and advanced signal acquisition circuitry, capable of detecting minute thermal fluctuations down to 0.0001\u00b0C for extreme testing accuracy.<\/li>\n
  • Dual-Layer Double Vessel Water Jacket Design:<\/strong> Features an independent 35L outer tank and a 2.3L inner vessel setup that eliminates external thermal interference, prevents water spillover, and guarantees constant-temperature stability throughout combustion.<\/li>\n
  • Precision Water Level Balancing System (<0.5g Repeatability):<\/strong> Includes an integrated water volume balancing module with a repeatability error under 0.5g per cycle. Maintains identical water thermal capacity across test batches to drastically reduce data variance.<\/li>\n
  • Imported High-Speed Circulation Stirrer:<\/strong> Equipped with an imported uniform mixing motor that facilitates rapid heat exchange throughout the inner vessel, ensuring fast temperature stabilization and accurate peak reading detection.<\/li>\n
  • Automated Unattended Workflow with Windows Control Software:<\/strong> Simply prepare the sample, pressurize the oxygen bomb, and insert it into the vessel. The PC software automatically controls stirring, ignition, temperature curve logging, calorific calculations, and PDF report generation.<\/li>\n<\/ul>\n
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    <\/p>\n

    Technical Specifications of Gross Heat of Combustion Tester<\/h3>\n\n\n\n\n\n\n\n\n\n\n
    Governing Test Standards<\/strong><\/td>\nISO 1716:2018, BS EN ISO 1716, EN 13501-1, EN 45545-2, ASTM D5865, ASTM D240, GB\/T 14402-2026, GB\/T 213-2008<\/td>\n<\/tr>\n
    Temperature Measuring Range<\/strong><\/td>\n0 \u00b0C to 40 \u00b0C (Single test fluctuation \u2264 1.0 \u00b0C)<\/td>\n<\/tr>\n
    Temperature Resolution<\/strong><\/td>\n0.0001 \u00b0C<\/td>\n<\/tr>\n
    Standard Test Cycle Duration<\/strong><\/td>\n18 to 20 minutes (6 min pre-balance + 12 min post-ignition tracking)<\/td>\n<\/tr>\n
    Water Tank Capacities<\/strong><\/td>\nOuter Tank: 35 L; Inner Vessel: 2.3 L; Balancing error: < 0.5 g<\/td>\n<\/tr>\n
    Ignition Mechanism<\/strong><\/td>\n24V automatic high-voltage electronic ignition system<\/td>\n<\/tr>\n
    Control System & Interface<\/strong><\/td>\nDedicated Windows microcomputer testing software; real-time curve plotting & USB report export<\/td>\n<\/tr>\n
    Dimensions & Power Supply<\/strong><\/td>\n400 mm (W) \u00d7 575 mm (D) \u00d7 456 mm (H); AC 220V \u00b110V, 50 Hz (<500W)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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    <\/p>\n

    System Architecture & Testing Workflow of ISO 1716 Bomb Calorimeter<\/h3>\n

    Standardized Testing Workflow:<\/strong><\/p>\n

      \n
    1. Weigh a representative sample (solid, powder, or liquid) into the combustion crucible and attach the nickel-chromium ignition wire.<\/li>\n
    2. Place the crucible into the oxygen bomb, seal the bomb, and pressurize with high-purity oxygen (3.0 MPa).<\/li>\n
    3. Submerge the oxygen bomb into the inner vessel; start the automatic test program on the Windows PC interface.<\/li>\n
    4. The system balances water temperature, triggers 24V ignition, records temperature rise at 0.0001\u00b0C resolution, and calculates gross calorific value (MJ\/kg or MJ\/m\u00b2).<\/li>\n
    5. Export or print the final test report detailing temperature curves, water heat capacity, and certified PCS values.<\/li>\n<\/ol>\n

      Target Customer Applications:<\/strong><\/p>\n

        \n
      • Building material, insulation panel, coating, and floor covering manufacturing factories.<\/li>\n
      • Third-party fire safety certification laboratories and material inspection bureaus.<\/li>\n
      • Coal, petroleum, biomass, and solid waste fuel quality inspection centers.<\/li>\n
      • University fire safety, energetic materials, and chemical engineering research departments.<\/li>\n<\/ul>\n
        \n

        <\/p>\n

        ISO 1716 Bomb Calorimeter FAQ<\/h3>\n

        Q1: Why is the Gross Heat of Combustion (PCS) critical for Euroclass A1 and A2 building materials?<\/h4>\n

        A:<\/strong> Under EN 13501-1 and ISO 1716, non-combustible material classifications (Euroclass A1 and A2) require strict limits on the total heat release potential (PCS value). Passing this test confirms that a building product will not contribute thermal energy to a fire.<\/p>\n

        Q2: How does the 0.0001\u00b0C temperature resolution benefit low-calorific sample testing?<\/h4>\n

        A:<\/strong> Non-combustible or inorganic building materials (like gypsum, mineral wool, or flame-retardant concrete) release very little heat when burned. Ultra-fine 0.0001\u00b0C resolution ensures precise detection of faint temperature rises, preventing measurement errors on low-calorific samples.<\/p>\n

        Q3: What maintenance is required for the oxygen bomb assembly?<\/h4>\n

        A:<\/strong> The stainless steel oxygen bomb should be rinsed with distilled water after each burn test, dried, and inspected for sealing O-ring wear. Hydrostatic pressure testing of the bomb should be performed periodically per safety regulations.<\/p>","protected":false},"excerpt":{"rendered":"

        JRZ10 Gross Heat of Combustion Tester for Building Materials<\/b> strictly complies with ISO 1716:2018<\/strong>, EN 13501-1 (Euroclass A1\/A2)<\/strong>, GB\/T 14402-2026<\/strong>, ASTM D5865<\/strong>, and ASTM D240<\/strong> standards. Features an ultra-fine 0.0001\u00b0C temperature resolution, double-layer 35L\/2.3L water tank, precision volume balancing (<0.5g error), imported circulation stirrer, and dedicated Windows software for automated calorific value testing.<\/p>","protected":false},"featured_media":875,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[117],"product_cat":[24],"product_tag":[],"class_list":["post-874","product","type-product","status-publish","has-post-thumbnail","product_brand-brt-testing","product_cat-fire-flame-testing-equipment","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/brt-testing.com\/it\/wp-json\/wp\/v2\/product\/874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/brt-testing.com\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/brt-testing.com\/it\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/brt-testing.com\/it\/wp-json\/wp\/v2\/comments?post=874"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/brt-testing.com\/it\/wp-json\/wp\/v2\/media\/875"}],"wp:attachment":[{"href":"https:\/\/brt-testing.com\/it\/wp-json\/wp\/v2\/media?parent=874"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/brt-testing.com\/it\/wp-json\/wp\/v2\/product_brand?post=874"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/brt-testing.com\/it\/wp-json\/wp\/v2\/product_cat?post=874"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/brt-testing.com\/it\/wp-json\/wp\/v2\/product_tag?post=874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}