GB/T 28195-2011 English PDFUS$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 28195-2011: Determination of softening point for glass Status: Valid
Basic dataStandard ID: GB/T 28195-2011 (GB/T28195-2011)Description (Translated English): Determination of softening point for glass Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: N64 Classification of International Standard: 81.040.01 Word Count Estimation: 9,913 Date of Issue: 2011-12-30 Date of Implementation: 2012-09-01 Adopted Standard: ISO 7884-6-1987, MOD Regulation (derived from): Announcement of Newly Approved National Standards No. 23 of 2011 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the glass softening point testing methods. This standard applies to all mass-produced glass softening point of the test. GB/T 28195-2011: Determination of softening point for glass---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Determination of softening point for glass ICS 81.040.01 N64 National Standards of People's Republic of China Glass softening point test method (ISO 7884-6. 1987, Glass-Viscosityandviscometricfixedpoints- Part 6. Determinationofsofteningpoint, MOD) Issued on. 2011-12-30 2012-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard is based on GB/T 1.1-2009 given rule drafting. This revised standard adopts ISO 7884-6. 1987 "Determination of softening point." This standard and ISO 7884-6. 1987 Main Differences "Determination of softening point" is. --- Removed the original in Chapter 1, "object"; --- Removed the original Chapter 3, "References." The standard proposed by China National Light Industry Council. This standard by National Instrument Standardization Technical Committee on Glass (SAC/TC178) centralized. This standard was drafted. Glass National Light Industry Product Quality Supervision and Inspection Center. The main drafters of this standard. Du Yuhai, the original Yu Ling, Liu Bojun, Yang Jianxin, Liang Ye, Yuan Chunmei. Glass softening point test method1 ScopeThis standard specifies the test method for softening point of the glass. This standard applies to all production test glass softening point.2 Terms and definitionsThe following terms and definitions apply to this document. 2.1 Softening point softeningpoint It is an approximation of the temperature above which the temperature of the glass is easily deformed. Principle 3 To a diameter of 0.65mm, a length of 235mm circular glass fiber, placed in the order (5 ± 1) ℃/min heating rate special Furnace, the upper part of its length 100mm glass fiber is heated by its own gravity, the glass fibers are elongated 1mm per minute It is the temperature of the glass softening point. Note. This method is used in equipment and fiber elongation viscometer same. If the samples, the steps and means in strict conformity with the requirements, the measure will be very repetitive softening point Good, but the corresponding viscosity values \u200b\u200bwill be slightly different.4 Instrument4.1 Furnace In all material respects, stoves shall comply with the provisions of Appendix A. In the case of conditions, using the same material. 4.2 mantel An apparatus for supporting an electric furnace, the glass fiber can be hung on the furnace bottom. This stove should have a leveling device. Appendix A stove Easy to use with a microscope or a telescope and scale readings. 4.3 heating speed controller For the furnace heating rate of (5 ± 1) ℃/min, it should be equipped with suitable controller. NOTE. continuously adjustable transformer can effectively control the heating rate. 4.4 Temperature measuring and indicating equipment 4.4.1 platinum and rhodium 10 - platinum (IEC 584-1 defined as S-type) thermocouple or a nickel-chromium - nickel-aluminum (nickel-chromium - nickel silicon) thermocouples (IEC 584-1 defined as K type) should exhibit low thermal inertia (wire diameter of no more than 0.5mm). Thermocouples should be placed holes porcelain tube (Appendix A requirements Consistent). 4.4.2 Measure thermocouple shall be specified in Appendix A at the center portion of the furnace. Thermocouples measure should be calibrated and checked regularly ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 28195-2011_English be delivered?Answer: Upon your order, we will start to translate GB/T 28195-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 28195-2011_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 28195-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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