GB/T 15595-2008 English PDFUS$149.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 15595-2008: Polyvinyl chloride resins -- Test methods for the thermal stability -- Whiteness method Status: Valid GB/T 15595: Historical versions
Basic dataStandard ID: GB/T 15595-2008 (GB/T15595-2008)Description (Translated English): Polyvinyl chloride resins -- Test methods for the thermal stability -- Whiteness method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G32 Classification of International Standard: 83.080.20 Word Count Estimation: 5,557 Date of Issue: 2008-05-15 Date of Implementation: 2008-11-01 Older Standard (superseded by this standard): GB/T 15595-1995 Regulation (derived from): National Standard Approval Announcement 2008 No.8 (Total No.121) Issuing agency(ies): General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 conditions powdered PVC resin in the heat chamber at the prescribed heat, by measuring the whiteness, to characterize the thermal stability of the test method. This standard applies to the determination of powdered PVC resin thermal stability. GB/T 15595-2008: Polyvinyl chloride resins -- Test methods for the thermal stability -- Whiteness method---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. Polyvinyl chloride resins. Test methods for the thermal stability. Whiteness method ICS 83.080.20 G32 National Standards of People's Republic of China Replacing GB/T 15595-1995 Test Method for Thermal Stability of PVC resin Method Whiteness Posted 2008-05-15 2008-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard replaces GB/T 15595-1995 "Standard Test Method for Thermal Stability of PVC resin whiteness law." This standard and GB/T 15595-1995 main differences are as follows. --- Modify the instrument minimum indication (1995 version 3.1.3, this version 3.1.3); --- Provisions to lighting conditions and the detection system for measuring instrument d/0 structure of arbitration (this version 5.2.4). The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee of plastic PVC resin product Club (SAC/TC15/SC7) centralized. This standard was drafted. Jinxi Chemical Industry Research Institute, China Petrochemical Qilu Company Ltd. chlor-alkali plants. The main drafters of this standard. Tan Chen, Hao Jing, Di Huaiji, Lijuan, Chenpei Yun. This standard was first published in 1995. Please note that some of the content of this standard may involve patents, the issuing authority of this standard should not bear the responsibility to identify these patents. Test Method for Thermal Stability of PVC resin Method Whiteness Note. Some test procedure specified in this standard can lead to dangerous situations.1 ScopeAfter This standard specifies the conditions under heated powdered PVC resin thermal test chamber at a predetermined, by measuring the whiteness, the thermal characterization Stability testing methods. This standard applies to the determination of powdered polyvinyl chloride resin thermal stability. Principle 2 PVC resin decomposition occurs at high temperatures, while showing a decline in the whiteness. The different samples obtained under the same thermal conditions There is a difference to the whiteness, which reflects the different heat resistance. This standard is based on this characteristic, thermal chamber, the sample provided for in article Determination of whiteness after member under heat. The measurement results can be used as a sample under specified conditions between relatively values \u200b\u200bof thermal stability.3 Instrument3.1 whiteness meter shall meet the following conditions. Illumination and detection conditions a) the measuring system is d/0 or other structures in line with the International Commission on Illumination (CIE) regulations. The measured brightness To R457 whiteness; Spectral characteristics b) measuring system based peak wavelength 457nm, FWHM of 44nm; c) instrument readings shows the minimum value of 0.1%, Repeatability ≤0.5%. 3.2 heat chamber with turntable and ventilation, the inside temperature uniformity can be controlled at (130 ~ 200) ℃ ± 1 ℃. 3.3 sample bottle (or weighing bottle), 70mm × 35mm, the cover does not have uniform thickness, quality of (45 ± 5) g. 3.4 Balance, accurate to 0.1g. 3.5 Test sieve, sieve size of 0.250mm. 3.6 Sample spoon (or stainless steel spoon). 3.7 Stopwatch.4 Protection MeasuresTake in a hot chamber, put the sample bottle (or disk), the arm should take a good protective equipment to prevent burns.5 test procedure5.1 Preparation of the sample Heating temperature and time of sample, according to the standards set forth in the product or agreement requirements. 5.1.1 Weigh (9.5 ~ 10.5) g sample evenly over the bottom of the sample bottle. 5.1.2 Thermal chamber was raised to a predetermined temperature, open the door, quickly put the box on the sample bottle turntable, this time on a flat specimen bottle The vertical distance between the surface and the thermometer should be 1cm, and immediately closing time, while starting turntable. When the temperature difference between the inside temperature and the provisions should be Not more than 5 ℃, and should be raised to a predetermined temperature within 2min. Note. If the number of samples tested at once, in order to facilitate pick and place sample bottle, sample bottle containing the sample can be put in a hot chamber outside on the turntable, The sample bottle is fixed with a clip, when open the door, which was placed in the box together. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 15595-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 15595-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 15595-2008_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 15595-2008 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. |
