ghd stijltang Differential Pressure Direct Reading

defgf10aj

Differential Pressure Direct Reading Instrument for Measuring transformation BOD5

Diluted water samples B to l. 2. Device parallel test of a glutamate standard solution of glucose check, can indirectly test the performance of devices and operating methods. Learn l03 ℃ drying said lh glucose, glutamate the I5onIg,[link widoczny dla zalogowanych], dissolved with dilution water to the lL, made for the theory of BOD5 200ng / L standard spinach. Take appropriate standard solution, diluted with water and then diluted into a constant volume theory of BOD5 to 2mg / L of the solution. This solution as the test water samples, with the garden soil for seeding liquid leaching solution, 5% inoculum. Instruments were used before and after reconstruction of the parallel determination of the SOD5 value and the standard dilution method in parallel with the determination results for comparison. Instrument method sensitivity were greatest at their respective investment amount of water cast samples. The results are listed in Table 2 Table 2 the results of different methods of parallel testing of 1998 3 Instrument Experiment results show that the poor accuracy of the instrument before modification, 7 parallel to the kind of relative standard deviation up to ± 29.7%; modified ,[link widoczny dla zalogowanych], 7 The relative standard deviation of parallel samples reduced to ± 3.1%; standard dilution determination of the results ± 4.1%; visible parallel modified and standard equipment a considerable dilution. * 3. Weigh 160mgHi2o6H2O dissolution test precision volume to lO00mL. With raw sewage, including 10%, with diluted solution of water is hereby made a series of different concentrations, measured BOD5, the results are shown in Table 3. This series of tests the concentration of the sample mean: 100.5mg / L, standard deviation: ± 4.5rag / L; the relative standard deviation of g. = ± 4.5%. Precision of the instrument can be seen in full compliance with Bo determination of requirements. Huan Xiang 3 screen out the same water concentration results V. CONCLUSIONS (1) Model after the transformation of a differential pressure type Ⅱ BODs detector with simple operation, direct reading continuous observation, and good sensitivity and precision. Can be successfully used to grab the low BOD5 value of 4 given. Measurement accuracy can be compared with the standard dilution method. (2) After the transformation of the instrument, not only can determine the value of the water samples with low BoD5 can still high levels of BODs values rinse water samples, measurement precision can meet BOD5 determination Bo requirements. Broaden the scope of application of the instrument, is a good environmental quality analysis and monitoring instruments. (3) The prospective application of the instrument set B0 value, Ran tablespoons of water to choose whether to vote properly, a direct impact on the results of water samples determined to vote this paper, the formula of water and some data in order to determine when the reference. L National Environmental Protection Agency reference. Rinse water and wastewater monitoring methods (third edition). Beijing: China Environmental Science Press. 19892 Li Yan city. Experimental treatment technology. Beijing: China Building Industry Press. 19953 Maple factory in Guangdong Province of medical devices. Determination of pressure direct reading aODs entire manual. 4 Zhang Zhijie. Jun guillotine pollution monitoring and evaluation. Beijing: China Environmental Science Press, 19915 with yellow herbicides. Environmental Analysis and Monitoring. Beijing: Higher Education Press Du. 1991 revenue spike Date: 1997 a 01lmpruvememate deleted as a deletion ∞ l ~ ressuredlredn bang wooded hill D0m tunnel m delete-cylinder hit the state. A ///,, tear bottles, in blood call (canthal nf uranium Xiu rof,[link widoczny dla zalogowanych],: l dragonfly. D secluded n.116011). 1 \y cricket a Ⅱ ofadil which satirized l F d Zhuo Peng Hu halogen lIg l Shan tOi generous towels suck the crab Iyand 0cthejI. Blood dish cafe, Jinchu wheathevalueieleas a grapefruit 3mg / L. Roundworm lnDdj6c, theme ~ relaentrmageisextendedend. H feet - email me add music Tsui head Hemis. The only soul music welcome circle set ? I: AI '/ cM professional capsule suffering a \Tracking technology to improve the level of enterprise application development market developments reported hot \17, published monthly,[link widoczny dla zalogowanych], large l6 open,[link widoczny dla zalogowanych], the body 64. Price: 5 yuan per month, year 60. Subscriptions are available around the post office. Miss the set period, may at any time transfer to the Supplement to the editorial department. Remittance Address: Street l Baiwanzhuang Beijing Zip: 100037 Tel: (010) 68326677-2751 Youfadaihao :82-725 series of training materials purchased CNS, CAD Application Engineering unified training materials Contact: Liu Liqing Tel: (010) 68326677 -2744.
More articles related to topics：

[link widoczny dla zalogowanych]

ghd styler A BASM _1805 vehicle emissions analysis

[link widoczny dla zalogowanych]