GB/T 8626-2007 PDF EnglishUS$85.00 · In stock · Download in 9 seconds
GB/T 8626-2007: Test method of flammability for building materials Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 8626: Historical versions
Similar standardsGB/T 8626-2007: Test method of flammability for building materials---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT8626-2007GB ICS 13.220.40 C 80 NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA GB/T 8626-2007 / ISO 11925-2:2002 Replacing GB/T 8626-1988 Test method of flammability for building materials (ISO 11925-2:2002 Reaction to fire tests – Ignitability of building products subjected to direct impingement of flame – Part 2: Single-flame source test, IDT) ISSUED ON: DECEMBER 21, 2007 IMPLEMENTED ON: JUNE 01, 2008 Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of the People's Republic of China. Table of ContentsForeword ... 3 Introduction ... 5 1 Scope ... 6 2 Normative references ... 6 3 Terms and definitions ... 6 4 Test apparatus ... 7 5 Test specimen ... 10 6 Conditioning... 11 7 Test procedure ... 11 8 Expression of results ... 13 9 Test report ... 13 Annex A (Normative) Procedure for products which melt and shrink ... 25 Annex B (Informative) Precision of test method ... 30ForewordThis Standard is equivalent to adopt ISO 11925-2:2002 “Reaction to fire tests - Ignitability of building products subjected to direct impingement of flame - Part 2: Single-flame source test” (English version). This Standard is equivalent to translate ISO 11925-2:2002. For ease of use, this Standard has the following editorial modification: a) REVISE “this International Standard” INTO “this Standard”; b) USE decimal point “.” To replace the comma “,” which is used as decimal point. This Standard replaces GB/T 8626-1988 “Test method of flammability for building materials”; because the research and development of a series of reaction to fire tests by International Standardization Organization ISO/TC 92 SHOWS that the original standard is technically outdated. Compared with GB/T 8626-1988, the main differences of this Standard are as follows: - REVISE the specimen dimension and quantity AS: specimen dimension (250 × 90) mm; the thickness shall not exceed 60 mm; the specimen quantity is 6 pieces (2.1 of 1988 edition); - ADJUST the ignition duration TO 15 s or 30 s for clients’ choice, and INDICATE the ignition duration in test report (3.7 of 1988 edition); - SPECIFY the flame height to be (20 ± 1) mm (3.6 of 1988 edition); - ADD the specifications of duration of test (see 7.4 of this edition); - ADD the specifications of carrying out additional test for multilayer products greater than 10 mm thick (see 7.3.3.2.3 and Figure 7 of this edition); - DELETE the determination of material flammability (Chapter 4 of 1988 edition); - ADD the expression of results (see Chapter 8 of this edition); - ADD the test report (see Chapter 9 of this edition); - ADD the normative annex “Procedure for products which melt and shrink” (see Annex A of this edition); - ADD the informative annex “Precision of test method” (see Annex B of this edition). Test method of flammability for building materials1 ScopeThis Standard specifies a method of test for determining the ignitability of building products by direct small flame impingement under zero impressed irradiance using specimens tested in a vertical orientation. The products that melt and shrink away from the flame without being ignited may be addressed by the additional procedure given in annex A. Information on the precision of the test method is given in annex B.2 Normative referencesThe provisions in following documents become the provisions of this Standard through reference in this Standard. For dated references, the subsequent amendments (excluding corrigendum) or revisions do not apply to this Standard, however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. EN 13238 Reaction to fire tests for building products - Conditioning procedures and general rules for selection of substrates EN ISO 13943 Fire safety - Vocabulary3 Terms and definitionsFor the purposes of this Standard, the terms and definitions given in EN ISO 13943, together with the following, apply: 3.1 Product Material, element or component about which information is required. 3.2 Essentially flat product A product having one of the following characteristics: a) planar exposed surface; checked prior to each flame application. NOTE: It has been found useful to measure the flame height against a black background. 7.3.2 Tilt the burner at 45° with respect to its vertical axis and advance it horizontally until the flame reaches the pre-set contact point with the test specimen. Start the timing device at the moment the flame contacts the test specimen. Apply the flame for 15 s or 30 s as required by the sponsor and then retract the burner in a smooth continuous manner. 7.3.3 Exposure conditions Tests may need to be conducted to either surface exposure or edge exposure, or both. NOTE: Advice on exposure conditions may be given in the relevant product standards. 7.3.3.1 Surface exposure For all essentially flat products (see 3.2), the flame shall be applied on the centre line of the specimen, 40 mm above the bottom edge (see Figure 9). Each different surface, which may be exposed in practice, shall be tested (see 5.4.2). 7.3.3.2 Edge exposure 7.3.3.2.1 For essentially flat single layer or multilayer products less than or equal to 3 mm total thickness, the flame shall be applied to the mid point on the bottom of the test specimen (see Figure 5). 7.3.3.2.2 For essentially flat single layer or multilayer products greater than 3 mm total thickness, the flame shall be applied to the centre of the width of the bottom edge of the test specimen 1.5 mm behind the surface (see Figure 6). 7.3.3.2.3 For all multilayer products greater than 10 mm thick, an additional set of tests shall be carried out with the specimen turned at 90° round its vertical axis and the flame impinging at the bottom edge of the centreline of the underside of each different layer (see Figure 7). 7.3.4 For products which are not essentially flat and which are to be tested in their end- use form, the flame shall be applied as described in 7.3.3.1 and 7.3.3.2. A full description of the method of retention shall be given in the test report. NOTE: A modification to the apparatus and/or procedure may be necessary but many non- planar products will normally only require a change in the specimen support frame. In some instances, however, the burner mounting may also be inappropriate and the ignition source may need to be held and applied manually. The product may be free standing or may be held in its end-use orientation in a retaining frame ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 8626-2007 be delivered?Answer: The full copy PDF of English version of GB/T 8626-2007 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 8626-2007_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 8626-2007_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 8626-2007 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.Question 5: Should I purchase the latest version GB/T 8626-2007?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 8626-2007 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.How to buy and download a true PDF of English version of GB/T 8626-2007?A step-by-step guide to download PDF of GB/T 8626-2007_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).Step 2: Search keyword "GB/T 8626-2007". Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart. Step 4: Select payment option (Via payment agents Stripe or PayPal). Step 5: Customize Tax Invoice -- Fill up your email etc. Step 6: Click "Checkout". Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively. Step 8: Optional -- Go to download PDF. Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice. See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9 |
