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商业部石油局和机械工业部仪表局于1983年12月21日至23日,在保定联合主持了TDL-40 (防爆)型数字流量计量装置的科研成果鉴定会。该装置由上海工业自动化仪表研究所、河北省保定地区石油公司共同研制,经有关部门试验、考核、审查,证明其技术性能稳定可靠,达到了原定指标要求。与会代表一致认为与国内同类仪表装置相比,计量精度(达土0.1％,中国计量科学研究院发给了证书,编号;流字第83—11-1～2号)防爆技术性能均
Ministry of Commerce Bureau of Petroleum Administration and Ministry of Machinery Industry Bureau of Instrumentation in December 21, 1983 to 23, jointly presided over the Baoding TDL-40 (explosion-proof) digital flow measurement device scientific research appraisal. The device by the Shanghai Institute of Industrial Automation, Baoding, Hebei Province, jointly developed by oil companies, the relevant departments of the test, assessment, review, that its technical performance is stable and reliable, has reached the original target requirements. Participants agreed that the measurement accuracy (Tatsu 0.1%, China Institute of Metrology issued a certificate, number; Flow Word No. 83-11-1 ~ 2) compared with similar instruments in the country are explosion-proof technical performance