GB/T 32697-2016 English PDFUS$94.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 32697-2016: Plastics -- Phenol-formaldehyde -- Determination of electrical conductivity of resin extracts Status: Valid
Basic dataStandard ID: GB/T 32697-2016 (GB/T32697-2016)Description (Translated English): Plastics -- Phenol-formaldehyde -- Determination of electrical conductivity of resin extracts Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G31 Classification of International Standard: 83.080.01 Word Count Estimation: 5,511 Date of Issue: 2016-06-14 Date of Implementation: 2017-01-01 Adopted Standard: ISO 9944-1990, IDT Regulation (derived from): National Standard Announcement No. 8 of 2016 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 phenolic resin extract at 23 �� �� 2 �� conductivity measurement method. This method is particularly important for resin applications as impregnation materials. GB/T 32697-2016: Plastics -- Phenol-formaldehyde -- Determination of electrical conductivity of resin extracts---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. Plastics.Phenol-formaldehyde.Determination of electrical conductivity of resin extracts ICS 83.080.01 G31 National Standards of People's Republic of China Plastic phenolic resin Determination of Conductivity of Extracts Determination ofelectricalconductivityofresinextracts (ISO 9944..1990, IDT) 2016-06-14 release 2017-01-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released ForewordThis standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the translation method equivalent to ISO 9944..1990 "Determination of conductivity of plastic phenolic resin extract". This standard is proposed by the China Petroleum and Chemical Industry Association. This standard by the National Plastics Standardization Technical Committee Thermosetting Plastics Subcommittee (SAC/TC15/SC11) centralized. The drafting of this standard. Shanghai Eurasian Synthetic Materials Co., Ltd., in the blue dawn Chemical Research and Design Institute Co., Ltd., the national synthetic resin Quality Supervision and Inspection Center, Changshu Southeast Plastic Co., Ltd., Shaxian Hongsheng Plastic Co., Ltd., Shandong Shengquan Chemical Co., Ltd. The main drafters of this standard. Chen Ziling, Liu Yong, Zhao Ping, Chen Xiaodan, Chen Jiwei, Chi Dandan, Wang Yonggui. Plastic phenolic resin Determination of Conductivity of Extracts1 ScopeThis standard specifies the determination of the conductivity of the phenolic resin extract at 23 ° C ± 2 ° C. This method is particularly important for resin applications as impregnating materials.2 principlePhenolic resin with acetone and water mixture for extraction, after standing, the determination of the conductivity of the upper suspension, and then calculate the conductivity.3 reagent3.1 Acetone. Analytical purity. 3.2 Water. deionized water, conductivity less than or equal to 2μS/cm. 3.3 Acetone water mixture. 8 4.4 instruments4.1 Conductivity electrode, electrode constant k is known. 4.2 Conductivity meter. the minimum range of 1μS, accurate to 5%; frequency range of 50Hz ~ 3000Hz. Or use the same accuracy of electricity Resistance measuring instrument. 4.3 beaker. capacity 250mL. 4.4 Magnetic stirrer. 4.5 Analysis of balance. sense of 1mg.5 operating procedures5.1 Preparation of the sample For liquid resin, the resin solution was weighed 10 g ± 0.05 g and placed in a 250 mL beaker (4.3). For the solid resin, the resin Into the powder, weighed resin powder 8g, dissolved in 8g acetone (3.1). Then, the resin solution was weighed 10 g ± 0.05 g and placed in 250 mL Cup (4.3). 5.2 Determination 10 g of acetone (3.1) was added to the prepared sample (5.1) and stirred with a magnetic stirrer (4.4) until the liquid became homogeneous and added dropwise 100mL acetone water mixture (3.3), the appropriate adjustment of the rate of increase so that the resin to form an emulsion without condensation. After the dropwise addition, stir for 3min, And then let stand for 3min. The conductive electrode (4.1) was inserted into the emulsion suspension on the upper layer of the resin, and the temperature was controlled at 23 ° C ± 2 ° C. 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