Gb 11914-89
WebProduct liquid D1 after obtaining handling, by the COD value of standard GB 11914-89 water quality-COD determination-potassium dichromate method tracer liquid product D 1, the … http://codeofchina.com/standard/GBT11914-1989.html
Gb 11914-89
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WebMay 1, 2024 · This standard specifies the dichromate method used to determine chemical oxygen demand in surface water, municipal wastewater, and industrial sewage. This standard is the amendment to Water quality-Determination of the chemical oxygen demand-Dichromate method (GB 11914-89). WebGB 11914-89 Water quality - Determination of the chemical oxygen demand - Dichromate method When the above standard is revised, the latest version shall be used. 3 …
WebDec 13, 2013 · The COD of the water was detected according to Chinese standard GB 11914-89. And the chrominance was determined by dilution method provided by the Chinese standard GB 11903-89. The pH value was detected using a pH211 desktop pH meter (HANNA, Italy). 2.4. UV–Vis analysis. Web本文档为【(完整word版)COD标准测定方法国标GB11914-89化学需氧量的测定】，请使用软件OFFICE或WPS软件打开。作品中的文字与图均可以修改和编辑， 图片更改请在作品中右键图片并更换，文字修改请直接点击文字进行修改，也可以新增和删除文档中的内容。
WebMar 25, 2024 · This standard specifies the method for determination of chemical oxygen demand in water. This standard applies to all types of COD with a value greater than … http://down.foodmate.net/standard/sort/9/50737.html
WebThe COD is analyzed by the dichromate method (GB 11914-89), in which K 2 Cr 2 O 7 is used to oxidize the COD in the analyzed water, and the NH 3 -N content is tested by an online ammonia analyzer. ...
WebSS Gravimetric method (GB 11901-89) COD Dichromate method (GB 11914-89) BOD 5 5-day BOD test TN Alkaline potassium per-sulfate digestion—UV spectrophotometric method (GB11894-89) NH 3 +–N Nessler’s reagent colormetric method (GB7974-87) NO 3 −–N phenoldisulfonic acid spectrophotometric method (GB 7480-87) NO 2 nutrition of padamdamWebMay 1, 2024 · 标准号：HJ 828—2024代替GB 11914-89 2024-05-01 实施 [打印] 字号： [大] [中] [小] 为贯彻《中华人民共和国环境保护法》和《中华人民共和国水污染防治法》，保 … 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 … nutrition of okraWebApr 25, 2013 · GB 11914-89 (1989) Water quality-determination of the chemical oxygen demand-dichromate method, National Standard of People’s Republic of China. Jasudkar … nutrition of peeps cerealWebsical method (GB 11914-89) [6]. Consequently, during the supervision of law enforcement, the COD determination of samples with high requirements such as discharge sample, assessment sample, arbitration analysis sample is preferred by the classical method (GB 11914-89). Considering the current research situation mentioned above, the aim of the nutrition of organ meatsWebGB 11914-1989. English Name: Water quality-Determination of the chemical oxygen demand-Dichromate method. Chinese Name: 水质 化学需氧量的测定 重铬酸盐法. … nutrition of patio menuWebFeb 1, 2008 · In China, the standard dichromate method is designated as CODcr (GB 11914-89, 1990), and the permanganate method is designated as permanganate index … nutrition of orange juiceWebNov 19, 2024 · Chemical oxygen demand (COD) was measured based on a National Standard of People’s Republic of China GB 11914-89 (Water quality—Determination of … nutrition of pearled barley