#TITLE: 	Winkler
#DESCRIPTION: Dissolved oxygen in water by Winkler method (1) and a modification (2).
#VARIABLES:	Oxygen O2
#UNITS: 	milligrammes per litre
#REFERENCE_VALUES:	None
#APPLICATION_SECTOR:	Environment
#ANALYTE:	Dissolved oxygen.
#MATRIX_TYPE:	Water
#RATIONALE:	Environmental control
#DATA_TYPE:	Real
#DATA_STRUCTURE:  Each line is a separate sample.
#DATA_STRUCTURE:  n(.) is number of repeat measurements.
#DATA_STRUCTURE:  Mean (.) is the mean result.
#DATA_STRUCTURE:  Stdev(.) is the standard deviation of the results.
#CONDITIONS:	Repeatability
#ORIGIN:	 India
#DATE_OF_ORIGIN:   2010
#AUTHOR:	Shriwastav A, Sudarsan G, Bose P, Tare V. 
#AUTHOR_ADDRESS: Department of Civil Engineering, Indian Institute of Technology,
#AUTHOR_ADDRESS: Kanpur, 208016, India.	 
#LITERATURE_REFERENCES:1.	Analytical Methods, 2010, 2, 1618-1622.  

n(1)	Mean(1)	Stdev(1)	n(2)	Mean(2)	Stdev(2)
20	2.13	0.26	20	2.14	0.42
20	1.03	0.14	20	1.27	0.29
20	1.74	0.21	20	1.95	0.39
5	4.74	0.19	9	4.34	1.19
10	1.53	0.09	10	1.54	0.3
10	4.25	0.33	10	4.37	0.38
10	1.99	0.2	10	2.34	0.35
9	8.7	0.29	9	9.92	0.43
9	3.12	0.44	10	3.44	0.32
10	3.36	0.27	10	3.49	0.19
10	3.08	0.52	10	3.19	0.57
10	3.46	0.67	10	3.52	0.34
10	4.56	0.36	10	4.48	0.82
10	4.02	0.35	10	3.96	0.64
10	5.33	0.15	10	5.91	0.3
10	4.04	0.38	10	4.73	0.61
10	3.98	0.54	10	4.48	0.43
10	3.07	0.11	10	3.3	0.37
10	4.88	0.54	10	5.01	0.34
10	6.01	0.28	10	6.49	0.45
10	5.47	0.66	10	5.67	0.81
9	5.9	0.35	10	5.91	0.63
10	3.94	0.3	10	4.13	0.37
10	4.56	0.48	10	4.54	0.61
10	6.29	0.27	10	6.61	0.62
10	4.76	0.93	10	4.95	0.34
10	4.22	0.28	10	4.4	0.29
10	4.42	0.73	10	4.95	0.34
10	5.17	0.5	10	5.51	0.91
10	5.95	0.59	10	6	0.8
10	5.93	0.26	10	6.22	0.43
10	5.01	0.24	10	5.5	0.37
10	4.46	0.69	10	4.92	0.3