Table of contents
1. Keys for Successful Analysis -Sampling for particle size analysis Estimation of standard error
02:22
4. Obligatory Opening Quotation (O2Q)
01:08
5. Why? Mining examples
02:29
6. Sampling: The impact on costs and decision making
00:49
7. Sampling in the 1890’s
01:33
8. LinkedIn - Mining – GEOSTATISTICS group
00:28
9. Published Abstract
00:35
10. (ALL) My University Notes on Sampling
00:33
11. University Notes (continued)
00:34
12. This is not the time to decide on Ms……
00:48
13. Adapted from: F J Flanagan “Reference Samples in Geology And Geochemistry” U.S. Geological Survey Bulletin # 1582, (1986)
01:14
14. Hofman (1901) – units?
00:42
15. Math will be based up that of Pierre Gy
01:09
16. Assumptions of the listener
00:52
17. What do I need to think about and define before I even attempt a particle size measurement?
03:20
18. What do we mean by representative sampling?
01:49
22. Fundamental Sampling Error (FSE)
00:49
24. Sampling - segregation
00:32
25. T R Woodridge ‘Ore-Sampling Conditions in the West’
00:49
26. The taking of a representative sample
00:31
27. Esbensen – 2 SlideData
00:25
28. NASA lunar regolith
00:19
29. ‘How much sample do we need to take for any required degree of precision?’
00:20
30. Standard Error (Gy: Fundamental Sampling Error, FSE)
02:03
31. Fundamental Sampling Error (FSE)
00:58
32. Fundamental Sampling Error (FSE)
00:21
33. ‘I wish to detect a small amount of agglomeration in my system’
01:17
35. ‘I wish to detect a small amount of agglomeration in my system’
00:49
37. Calculation of minimum mass
00:30
38. Break out – back to the course – x95
00:16
40. Vezin (yes he!) 1866 (?)
00:15
41. So compare Rawle and Vezin
00:33
42. ‘Gy's Formula: Conclusion of a New Phase of Research’
00:23
43. Professor Robert Richards, MIT
00:34
44. We can turn the calculation ‘around’…
00:35
45. OK - up to 200 mm
00:48
47. So you’re taking only 20 mg……….
00:20
48. So how do you take a sample/specimen?
00:25
49. The x100 represents the single largest particle in the (sampled) distribution
00:29
50. The largest particle….x100
00:09
51. The largest particle….x 100
00:19
52. x100 – ISO 13320: 2009
00:13
53. Sampling - summary
00:25
57. Sampling personality webinars
00:19
58. Contact Information and Q&A
04:20
59. Thanks for listening
00:22