ASTM E1740
1.1 本耐火試驗響應(yīng)試驗方法包括測定復(fù)合材料的可燃性和熱釋放率,該復(fù)合材料由墻面覆蓋物或天花板覆蓋物、基材和所有層壓粘合劑、涂料和飾面組成。熱釋放信息不能單獨用于評估墻面覆蓋物或天花板覆蓋物的易燃性。這些數(shù)據(jù)旨在用于建?;蚺c其他數(shù)據(jù)一起評估材料。 1.2 本試驗方法提供了在35 kW/m恒定初始試驗熱流下測量持續(xù)燃燒時間、熱釋放速率、峰值和總熱釋放以及有效燃燒熱的方法 2. . 通過該測試方法還獲得了不同熱通量下的熱釋放數(shù)據(jù)。 樣品水平定向,并使用火花點火源。 1.3 使用試驗方法中描述的裝置和程序確定火災(zāi)試驗響應(yīng)特性 E1354 . 1.4 試驗是在結(jié)合實際安裝中使用的部件的臺架樣本上進(jìn)行的。 1.5 以國際單位制表示的數(shù)值應(yīng)視為標(biāo)準(zhǔn)??匆?IEEE/ASTM SI-10 . 1.6 產(chǎn)品和材料的防火測試具有固有的危險性,在進(jìn)行這些測試時,應(yīng)對人員和財產(chǎn)采取適當(dāng)?shù)谋Wo(hù)措施。該測試方法可能涉及危險材料、操作和設(shè)備。 1.7 本標(biāo)準(zhǔn)用于測量和描述材料、產(chǎn)品或組件在受控條件下對熱量和火焰的響應(yīng),但其本身并不包括在實際火災(zāi)條件下對材料、產(chǎn)品或組件進(jìn)行火災(zāi)危險或火災(zāi)風(fēng)險評估所需的所有因素。 1.8 防火測試本身就很危險。在進(jìn)行這些測試時,應(yīng)采取適當(dāng)?shù)娜藛T和財產(chǎn)保護(hù)措施。 第節(jié)給出了有關(guān)危險的具體信息 6. . 1.9 本標(biāo)準(zhǔn)并非旨在解決與其使用相關(guān)的所有安全問題(如有)。本標(biāo)準(zhǔn)的用戶有責(zé)任在使用前制定適當(dāng)?shù)陌踩?、健康和環(huán)境實踐,并確定監(jiān)管限制的適用性。 1.10 本國際標(biāo)準(zhǔn)是根據(jù)世界貿(mào)易組織技術(shù)性貿(mào)易壁壘(TBT)委員會發(fā)布的《關(guān)于制定國際標(biāo)準(zhǔn)、指南和建議的原則的決定》中確立的國際公認(rèn)標(biāo)準(zhǔn)化原則制定的。 ====意義和用途====== 5.1 本試驗方法用于確定材料和復(fù)合材料在錐形量熱計裝置中暴露于規(guī)定初始試驗熱流下的持續(xù)燃燒和熱釋放時間。 5.2 定量熱釋放測量提供的信息可用于比較墻壁或天花板覆蓋物和結(jié)構(gòu),并用于輸入火災(zāi)模型。 5.3 熱釋放測量通過定量測量組件和復(fù)合材料修改引起的防火性能的具體變化,為產(chǎn)品開發(fā)提供了有用的信息。 5.4 如果產(chǎn)品在相關(guān)火災(zāi)暴露條件下不會在其表面?zhèn)鞑セ鹧?,則通過本試驗方法獲得的熱釋放數(shù)據(jù)將不合適。 5.5 用于層壓復(fù)合材料產(chǎn)品的基材、安裝方法和粘合劑的變化可能會影響測試響應(yīng)。在任何比較實驗中,必須控制這些變量。 5.6 測試限制- 如果出現(xiàn)以下任何情況,則測試數(shù)據(jù)無效: 5.6.1 爆炸剝落, 5.6.2 試樣在點火前充分膨脹,以接觸火花塞,或在燃燒過程中膨脹至加熱器底座平面,或 5.6.3 當(dāng)放置在輻射加熱器下時,表面層壓板滾動或卷曲。 5.7 在本程序中,樣本經(jīng)受一組或多組特定的實驗室條件。如果替換了不同的測試條件或結(jié)束- 使用條件發(fā)生變化時,通過本試驗或從本試驗中預(yù)測測得的火災(zāi)試驗響應(yīng)特性的變化并不總是可能的。因此,結(jié)果僅適用于本程序中描述的火災(zāi)試驗暴露條件。
1.1 This fire-test-response test method covers determination of the ignitability and heat release rate of composites consisting of a wall covering or ceiling covering, a substrate, and all laminating adhesives, coatings, and finishes. Heat release information cannot be used alone to evaluate the flammability of wall coverings or ceiling coverings. The data are intended to be used for modeling or with other data to evaluate a material. 1.2 This test method provides for measurement of the time to sustained flaming, heat release rate, peak and total heat release, and effective heat of combustion at a constant initial test heat flux of 35 kW/m 2 . Heat release data at different heat fluxes are also obtained by this test method. The specimen is oriented horizontally, and a spark ignition source is used. 1.3 The fire-test-response characteristics are determined using the apparatus and procedures described in Test Method E1354 . 1.4 The tests are conducted on bench-scale specimens combining the components used in the actual installation. 1.5 The values stated in SI units are to be regarded as the standard. See IEEE/ASTM SI-10 . 1.6 Fire testing of products and materials is inherently hazardous, and adequate safeguards for personnel and property shall be used in conducting these tests. This test method potentially involves hazardous materials, operations, and equipment. 1.7 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions. 1.8 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests. Specific information about hazard is given in Section 6 . 1.9 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.10 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method is used to determine the time to sustained flaming and heat release of materials and composites exposed to a prescribed initial test heat flux in the cone calorimeter apparatus. 5.2 Quantitative heat release measurements provide information that can be used to compare wall or ceiling coverings and constructions and for input to fire models. 5.3 Heat release measurements provide useful information for product development by giving a quantitative measure of specific changes in fire performance caused by component and composite modifications. 5.4 Heat release data obtained by this test method will be inappropriate if the product will not spread flame over its surface under the fire exposure conditions of interest. 5.5 Variations in substrates, mounting methods, and adhesives used to laminate composite products will potentially affect the test responses. These variables must be controlled during any comparative experiments. 5.6 Test Limitations— The test data are invalid if any of the following occur: 5.6.1 Explosive spalling, 5.6.2 The specimen swells sufficiently prior to ignition to touch the spark plug or swells up to the plane of the heater base during combustion, or 5.6.3 The surface laminate rolls or curls when placed under the radiant heater. 5.7 The specimens are subjected to one or more specific sets of laboratory conditions in this procedure. If different test conditions are substituted or the end-use conditions are changed, it is not always possible by or from this test to predict changes in the fire-test-response characteristics measured. The results are therefore valid only for the fire test exposure conditions described in this procedure.
相關(guān)知識
ANSI/ASTM E2364
ASTM C1940
康寶萊優(yōu)質(zhì)產(chǎn)品及服務(wù)獲肯定,國際認(rèn)可度不斷提升
振動測試第三方檢測
振動測試
室內(nèi)空氣質(zhì)量在線監(jiān)測儀校準(zhǔn)規(guī)范
Pvc醫(yī)療水泵循環(huán)冷暖床墊床
清洗劑、防銹劑
人體健康風(fēng)險評估模型
哪兒可以做振動試驗?選擇專業(yè)的振動試驗服務(wù)提供商
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