GB/T 27503-2011 English PDFUS$349.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 27503-2011: Test solutions of electrolytic conductivity analyzer -- Preparation method of sodium chloride solutions Status: Valid
Basic dataStandard ID: GB/T 27503-2011 (GB/T27503-2011)Description (Translated English): Test solutions of electrolytic conductivity analyzer -- Preparation method of sodium chloride solutions Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: N53 Classification of International Standard: 71.040.01 Word Count Estimation: 15,190 Date of Issue: 2011-10-31 Date of Implementation: 2012-01-01 Regulation (derived from): Announcement of Newly Approved National Standards No. 15 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 atmosphere sodium solution preparation reagents, instruments or equipment, preparation steps and the solution concentration and resistivity of the correspondence. This standard applies to the desired conductivity meter test sodium chloride solution (hereinafter referred to as solution) preparation. GB/T 27503-2011: Test solutions of electrolytic conductivity analyzer -- Preparation method of sodium chloride solutions---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. Test solutions of electrolytic conductivity analyzer. Preparation method of sodium chloride solutions ICS 71.040.01 N53 National Standards of People's Republic of China Conductivity Meter test solution Sodium chloride solution preparation Issued on. 2011-10-31 2012-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Machinery Industry Federation. The standard measurement and control of the instruments Standardization Technical Committee Technical Committee (SAC/TC124/SC6) by the National Industrial Process Centralized. This standard was drafted. Shanghai Precision Scientific Instrument Co., Ltd., Shanghai Measurement and Testing Technology Research Institute, East China Normal University, Shanghai Lei Pudong magnetic Instrument Factory Lianying Chang. The main drafters of this standard. Kim Chun law, Wang Qiaomei, Wu Jianzhong, Wang Ye, HE Pin-Gang, He Haidong. Conductivity Meter test solution Sodium chloride solution preparation1 ScopeThis standard specifies the correspondence between the sodium chloride solution was prepared using reagents, instruments or equipment, preparation steps and solution concentration and resistivity. Preparation of sodium chloride solution (hereinafter referred to as a solution) is required for this standard applies to the conductivity meter test.2 ReagentsPreparation of the solution required reagents. a) Sodium chloride. AR; b) Water. water or a laboratory conductivity no greater than 0.2 × 10-6S/cm of distilled or deionized water.3 instruments or apparatusPreparation of the solution required for instruments or apparatus. a) balance. the largest weighing not more than 200g, verification scale value of 0.1mg; b) electric oven. (0 ~ 300) ℃. Step 4 Preparation 4.1 Environmental conditions Solution should be prepared in the following environmental conditions. a) Ambient temperature. (20 ± 2) ℃; b) Relative humidity. less than 85%. 4.2 Solution Preparation After the sodium chloride placed in an electric oven, the temperature control (220 ~ 240) ℃ range, dried for at least 2h, cooled to room temperature, depending on the count Count, weigh a certain amount of sodium chloride was added to a certain quality of water and thoroughly mixed to obtain the desired mass fraction of the solution, the uncertainty does not exceed More than 0.25%.5 solution resistivity and conductivity5.1 solution resistivity Table 1 shows the different concentrations of the solution 18 ℃ when the resistivity; Table 2 (0 to 140) ℃ temperature coefficient within the temperature range of the solution [alpha]; Table 3 is a correction value in the low concentration range of 5% solution of the temperature coefficient α; The resistivity of the solution by the formula (1) calculation of the other temperatures. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 27503-2011_English be delivered?Answer: Upon your order, we will start to translate GB/T 27503-2011_English as soon as possible, and keep you informed of the progress. 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