Gb 11913-89
WebWater quality─Determination of dissolved oxygen─Electrochemical probe method (GB 11913-89), which was approved and released by the former National Environmental …
Gb 11913-89
Did you know?
WebJun 17, 2024 · GBT 11913-89 水质 溶解氧的测定 电化学探头法 .pdf. 上传人：lelele556. 文档编号：78811102. 上传时间：2024-06-17. 格式：PDF. 页数：14. 大小：460KB. 本资源 … WebLess than a 2% decrease of the fluorescence and the GB 11913-89 method. The relative errors of all determina- intensity could be found. This photostability of PtF20TPP is due to tion results were less than 5%, indicating that the developed its four fluorophenyl groups attaching to the porphyrin. The optical sensor presented excellent ...
http://www.hdntec.com/data/upload/file/20241224/1545643630187275.pdf WebJul 1, 1990 · The current standard is equivalent to the application of ISO 5814-1984 “Water quality-Determination of dissolved oxygen- Electrochemical probe method”.
WebApr 1, 2024 · Determination of Dissolved Oxygen in Water by Electrochemical Probe Method (GB 11913-89). Special announcement. October 20,.2009 Content Foreword..iv 1 … WebAug 1, 2024 · The dissolved oxygen meter, the portable conductivity meter and the pH meter was operated in accordance with GB/T 11913-89 (People’s Republic of China National Standard GB/T GB1, 1913–89), DZ/T 0064.6-93 (Occupation Standard of Ministry of Geology and Mineral Resources of People’s Republic of China DZ/T 0064.6–93,), GB/T …
Web咨询表格: 气体 液体 固体 北京北斗星科技有限公司. 业务热线: 010-6257.3917-808(环境气体水质分析 / 污染源监测); 010-8264.0229-812 (工业水质及处理）; 地方销售处联系办法 传真: 010-8264.0238（业务部） email: [email protected] [email protected] 技术支持:转#811; [email protected]
WebJan 1, 2006 · The buyer gives the seller a separate statement that is dated and signed that describes the situation that requires immediate remedy, and expressly acknowledges … cost per thousand for 30 year mortgageWebGB 11914-1989 水质 化学需氧量的测定 重铬酸盐法本标准于2024-5-1被HJ 828-2024 水质 化学需氧量的测定 重铬酸盐法（发布稿）代替本标准规定了水中化学需氧量的测定方法。 本标准适用于各种类型的含COD值大于30m g/L的水样，对未经稀释的水样的测定上限为700mg/L。 本标准不适用于含抓化物浓度大于1000mg/L ... breast cancer compression arm sleevesWebJul 1, 1990 · 标准号：GB 11893-89. 本标准规定了用过硫酸钾（或硝酸-高氯酸）为氧化剂，将未经过滤的水样消解，用钼酸铵分光光度法测定总磷的方法。. 总磷包括溶解的、颗粒的、有机的和无机磷。. 本标准适用于地面水、污水和工业废水。. 取25mL试料，本标准的最低 … cost per ton to leoWebDec 1, 2009 · 本标准是对《水质 溶解氧的测定 电化学探头法》（gb 11913-89）的修订。 自本标准实施之日起，原国家环境保护局1989年12月25日批准、发布的国家环境保护标准 … 中华人民共和国生态环境部 如有问题可在登录页面“帮助”查询或联系：010-65646071 关于发布国家生态环境标准《农药制造工业污染防治可行技术指南》的公告 2024 … 版权所有：中华人民共和国生态环境部 . ICP备案编号: 京ICP备05009132号 网 … 关于公开征求国家生态环境标准《固定污染源排放口监测点位设置技术指南（征求 … 关于发布《环境空气质量标准》（gb 3095-2012）修改单的公告 2024-08-14 关于 … cost per ton of co2WebDec 1, 2009 · 本标准是对《水质 溶解氧的测定 电化学探头法》（gb 11913-89）的修订。 自本标准实施之日起，原国家环境保护局1989年12月25日批准、发布的国家环境保护标准《水质 溶解氧的测定 电化学探头法》（gb 11913-89）废止。 自以上标准实施之日起，下列标准 … cost per ton for gravelWebMar 1, 2004 · GB 11913-89 (NEPA, 1989a, NEPA, 1989b, ... (GB 3097-82) and Fishery Water Quality Standard (GB11607-89) , taking into account the particular situation of protecting marine biological resources and human safe utilization (including salt production base, marine aquaculture, etc.). Table 3 ... breast cancer compression shirt targetWebDec 25, 2009 · Water quality-Determination of TOC by nondispersive infrared absorption method (GB 13193-91), which was approved and released by the former National Environmental Protection Agency on August 31, 1991 and Water quality-Determination of total organic carbon-Combustion oxidation nondispersive infrared absorption method … cost per ton of co2 canada