GB/T 1541-2013 PDF EnglishUS$70.00 · In stock · Download in 9 seconds
GB/T 1541-2013: Paper and board -- Determination of dirt 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 1541: Historical versions
Similar standardsGB/T 1541-2013: Paper and board -- Determination of dirt---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/GBT1541-2013GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 85.010 Y 30 Replacing GB/T 1541-2007 Paper and Board - Determination of Dirt ISSUED ON: OCTOBER 10, 2013 IMPLEMENTED ON: MAY 1, 2014 Issued by: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the People’s Republic of China. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Terms and Definitions ... 4 4 Instruments ... 4 5 Sampling ... 5 6 Test Procedures ... 5 7 Result Expression ... 5 8 Test Report ... 6 Appendix A (normative) Standard Dirt Picture ... 7 Paper and Board - Determination of Dirt1 ScopeThis Standard specifies the method of determining dirt for paper and board. This Standard is applicable to the determination of dirt for various types of paper and board.2 Normative ReferencesThe following documents are indispensable to the application of this document. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 450 Paper and Board - Sampling for Testing and Identification of Machine and Cross Direction, Wire Side and Felt Side3 Terms and DefinitionsThe following terms and definitions are applicable to this Standard. 3.1 Dirt Dirt refers to fiber bundles and other impurities that can be seen on the paper surface with a color that is significantly different from the paper surface under any illumination angle. 3.2 Dirt [Dirt degree] Dirt refers to the number of dirt with a certain area per square meter of paper and board, or the equivalent area (mm2) of dirt on paper and board per square meter.4 Instruments4.1 Lighting device: 20 W fluorescent lamp, with an illumination angle of 60°. 4.2 Rotatable sample plate: milky white glass plate or translucent plastic plate; the area of the sample plate is 270 mm 270 mm. 4.3 Standard dirt picture: on a transparent film, a series of dirt with different areas and shapes are printed. The left half is dirt with the same area, but different shapes in the same horizontal row. The right half is dirt with the same area, but different shapes in same column. See Appendix A for details. NOTE: the standard dirt picture is uniformly provided by the standardization institution; it is not recommended to use copies, because copies might change the size of the spots.5 SamplingIn accordance with the stipulations of GB/T 450, conduct sampling; cut at least four test specimens with the size of 250 mm 250 mm.6 Test Procedures6.1 Place a cut test specimen on a rotatable sample plate; use the four-corner pliers on the plate to press the test specimen. Under a fluorescent lamp, check the visible dirt on the paper surface. During eye observation, the distance of distinct vision is 250 mm ~ 300 mm. Use different marks to circle the dirt with different areas; use the standard dirt comparison picture to identify the area of the dirt on the paper. It is also feasible to respectively record the number of dirt in the same area in accordance with the size of different areas. 6.2 Rotate the sample plate by 90°. After each rotation, mark the newly found dirt, until it returns to the original position. If it is a double-sided paper and board, then, in accordance with the above-mentioned method, check the other side of the test specimen. 6.3 In accordance with the above-mentioned steps, determine the remaining three test specimens.7 Result Expression7.1 The result may be calculated in accordance with the grouping stipulated in the product standard or the contract. Firstly, calculate the number of dirt in each group on the front and back side of each test specimen. For a single-sided paper and board, merely determine the dirt on the used side. For a double-sided paper and board, determine the dirt on both sides. Combine and calculate the four test specimens, then, convert it into the number of dirt per square meter. The result shall take an integer. The dirt shall be calculated in accordance with Formula (1) and expressed in (PCS/m2). ......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 1541-2013 be delivered?Answer: The full copy PDF of English version of GB/T 1541-2013 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 1541-2013_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 1541-2013_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 1541-2013 -- 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 1541-2013?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 1541-2013 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 1541-2013?A step-by-step guide to download PDF of GB/T 1541-2013_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 1541-2013". 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 |
