GB/T 1033.3-2010 PDF EnglishUS$125.00 · In stock · Download in 9 seconds
GB/T 1033.3-2010: Plastics -- Methods for determining the density of non-cellular plastics -- Part 3: Gas pycnometer method Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 1033.3-2010: Plastics -- Methods for determining the density of non-cellular plastics -- Part 3: Gas pycnometer method---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/GBT1033.3-2010 GB NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA ICS 83.080.01 G 31 GB/T 1033.3-2010 / ISO 1183-3:1999 Plastics - Methods for determining the density of non- cellular plastics - Part 3: Gas pycnometer method (ISO 1183-3:1999, IDT) ISSUED ON: SEPTEMBER 26, 2010 IMPLEMENTED ON: AUGUST 1, 2011 Issued by: General Administration of Quality Supervision, Inspection and Quarantine of PRC; Standardization Administration of PRC. Table of ContentsForeword ... 3 1 Scope ... 5 2 Terms and definitions ... 5 3 Principle ... 7 4 Instruments and materials ... 7 5 Test specimens ... 8 6 Calibration ... 8 7 Procedure and calculation ... 9 8 Precision ... 9 9 Test report ... 10 Appendix A (Informative) Two-chamber pressure-type gas pycnometer ... 11ForewordGB/T 1033 Plastics - Methods for determining the density of non-cellular plastics is divided into the following three parts: -- Part 1: Immersion method, liquid pycnometer method and titration method; -- Part 2: Density gradient column method; -- Part 3: Gas pycnometer method. This part is Part 3 of GB/T 1033. This part was translated from and identical to ISO 1183-3:1999 Plastics - Methods for determining the density of non-cellular plastics - Part 3: Gas pycnometer method (English version). For ease of use, this part also makes the following editorial changes to ISO 1183-3:1999. -- The term "this international standard" is replaced with "this standard", "this part" or "GB/T 1033.3-2010"; -- The foreword of ISO 1183-3:1999 is deleted; -- The foreword of this part is added; -- The normative reference documents are added; -- Chinese decimal point symbol "." is used to replace the decimal point symbol "," in the international standard. Appendix A of this part is an informative appendix. This part was proposed by China Petroleum and Chemical Industry Federation. This part is under the jurisdiction of the Sub-committee on Methods of Test and Material for Plastics and Resins of the National Technical Committee on Plastics of Standardization Administration of China (SAC/TC15/SC4). Responsible drafting organizations of this part: National Synthetic Resin Quality Supervision and Inspection Center, China Bluestar Chengrand Co., Ltd., Guangzhou Synthetic Material Institute Co., Ltd. Participating drafting organizations of this part: Kingfa Sci.&Tech. Co., Ltd., Resin Application Research Institute of Sinopec Beijing Yanshan Petrochemical Co., Ltd., Plastics - Methods for determining the density of non- cellular plastics - Part 3: Gas pycnometer method WARNING: The application of this part may involve some dangerous materials, operations or equipment. This part does not address all possible safety issues related to the application. The user of this part is responsible for establishing the safety and health terms applicable to this part and determining the use specifications of this part before use.1 ScopeThis part of GB/T 1033 specifies the method for measuring the density or specific volume of solid non-cellular plastics of any shape without internal pores.2 Terms and definitionsThe following terms and definitions apply to this part of GB/T 1033. 2.1 test material Material to be tested. 2.2 test specimen The part of the test material that is actually tested. 2.3 mass The amount of matter contained in an object, which is expressed in kilograms (kg) or grams (g). 2.4 weight The force produced by gravity acting on a mass, expressed in Newtons (N). NOTE: Gravity varies by location, and so does weight.5 Test specimens5.1 If the conditioning is carried out, the specimen shall be dried to constant weight before volume measurement. Carefully select appropriate drying conditions to prevent changes in the density of the test material. 5.2 The test material may be in the form of powder, granules, flakes and sheets. Other materials may also be cut into any shape suitable for the volume size of the gas pycnometer used. Avoid density changes due to compressive stress during cutting. The specimens of materials containing closed pores shall be prepared by suitable methods, such as grinding. 5.3 If the conditioning may cause the change in the specimen density to be greater than the required accuracy of the measurement, the conditioning shall be carried out according to the relevant material standards before the test. Sometimes, it may be required that the conditioning is carried out under the conditions of specified humidity or achieving constant crystallinity. 5.4 When changes in density as a function of time or ambient conditions are the main purpose of the determination, conditions of the specimen conditioning shall be calibrated according to the consensus reached by all parties.6 CalibrationAdjust the temperature of the gas pycnometer to the required value, preferably (23±1) °C. Adjust the volume of the gas pycnometer to the required value or measure the volume of the empty gas pycnometer. Measure the mass of a calibration specimen of known density with an accuracy of 0.1 mg, or use a calibration specimen of known volume. Place the calibration specimen in the measurement chamber and purge it with the measurement gas for 3 minutes to remove air and moisture adsorbed on the specimen surface. If necessary, allow additional time for the temperature to equilibrate. When the preset temperature is reached, place the specimen in accordance with the specific operating instructions for the type of gas pycnometer used and measure the volume change or the resulting pressure change. Determine the calibration factor kc using equation (3) or equation (4). NOTE: When using a pressure-type instrument, the volume of the specimen can be calculated from the pressure change using the ideal gas pressure-volume relationship (Boyle-Mariotte law). Some gas pycnometers can automatically calculate the volume of the specimen. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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