GB/T 4893.3-2020 PDF EnglishUS$170.00 · In stock · Download in 9 seconds
GB/T 4893.3-2020: Test of surface coatings of furniture - Part 3: Determination of resistance to dry heat 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 4893.3: Historical versions
Similar standardsGB/T 4893.3-2020: Test of surface coatings of furniture - Part 3: Determination of resistance to dry heat---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/GBT4893.3-2020 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 97.140 Y 80 Replacing GB/T 4893.3-2005 Test of surface coatings of furniture - Part 3: Determination of resistance to dry heat ISSUED ON: JULY 21, 2020 IMPLEMENTED ON: FEBRUARY 01, 2021 Issued by: State Administration for Market Regulation; Standardization Administration of the People's Republic of China. Table of ContentsForeword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions ... 5 4 Principle ... 6 5 Test conditions ... 6 6 Reagents and materials ... 6 7 Instruments and equipment... 7 8 Sample ... 8 9 Test steps ... 8 10 Test data processing ... 9 11 Test report ... 10 Bibliography ... 11 Test of surface coatings of furniture - Part 3: Determination of resistance to dry heat1 ScopeThis Part of GB/T 4893 specifies the method for determination of resistance to dry heat. This Part is applicable to all cured surfaces of painted furniture and the tests on the surface of unused furniture or test panel. This Part is not applicable to leather and textile surfaces.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 3190, Wrought aluminium and aluminium alloys - Chemical composition limits GB/T 3505, Geometrical Product Specifications (GPS) - Surface texture: Profile method - Terms, definitions and surface texture parameters GB/T 10610, Geometrical product specifications(GPS) - Surface texture: Profile method - Rules and procedures for the assessment of surface texture JB/T 9262, Liquid-in-glass industrial thermometers and laboratorial thermometers JB/T 9263.4, The types and fundamental sizes of solid-stem common thermometers3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply. 3.1 test panel On the test area, provide uniform diffused light and reach (1200±400)lx illuminance in the test area. Diffuse natural light or diffuse artificial light can be used. NOTE: Daylight shall not be affected by surrounding trees. When using artificial daylight, it is recommended that the correlated color temperature of the light is (6500±50)K, color rendering index Ra is greater than 92 and use a colorimetric box that complies with GB/T 9761-2008 to obtain this light.8 Sample8.1 Specimen The specimen can be painted furniture or test panel. The test panel shall use the same material and the same coating method as the painted furniture, and the size shall meet the test requirements. 8.2 Pretreatment Before the test, it shall put the specimen in an environment with a temperature of (23±2)°C and a relative humidity of (50±5)%, for at least 48h. 8.3 Test surface requirements The test surface shall be flat and meet the size requirements of the test (see 9.2).9 Test steps9.1 After the specimen is pretreated, immediately put it in an environment with a temperature of (23±2)°C to carry out the test. 9.2 The test surface shall be placed horizontally. It shall be large enough to accommodate the number of tests required. Between adjacent test surfaces, between the periphery of the test surface and the edge of the template, at least 15mm space shall be left. At the same time at the unfolded as the test, the periphery of the test surface shall be separated by at least 50mm. If there is any reason to believe that the performance of the test surface may change, two identical tests shall be carried out at the same time. 9.3 Before the test, use a cleaning cloth (see 6.1) to wipe the test surface gently. 9.4 Use an oven (see 7.3) to heat the heat source block (see 7.2) to at least 10°C higher than the specified test temperature. The test temperature shall be selected from the following temperatures according to the test requirements: ......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 4893.3-2020 be delivered?Answer: The full copy PDF of English version of GB/T 4893.3-2020 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 4893.3-2020_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 4893.3-2020_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 4893.3-2020 -- 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 4893.3-2020?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4893.3-2020 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 4893.3-2020?A step-by-step guide to download PDF of GB/T 4893.3-2020_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 4893.3-2020". 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 |
