Process Capability Analysis and Process Analytical Technology
Process Capability Analysis and Process Analytical Technology
Presented by: Steven Walfish President, Statistical Outsourcing Services steven@
Agenda
? Introduction to Capability ? What is capability ? Histograms ? Normal Distribution
? Capability Indices ? Cp ? Cpk ? Pp ? Ppk
? Calculating Sigma ? Relating capability to percent nonconforming
? Capability with attribute data ? Defects per Million Opportunities (DPMO)
? Process Analytical Technology (PAT)
What is Capability?
? Process capability compares the output of an in-control process to the specification limits.
? The comparison is made by forming the ratio of the spread between the process specifications (the specification "width") to the spread of the process values, as measured by process standard deviation.
? A capable process is one where almost all the measurements fall inside the specification limits.
Graphical Representation
LSL
Mean = 75 SD = 0.3 USL = 73 USL = 77 6S = 1.8
USL
6S on each side of the mean to the specification limit.
73.2
73.8
74.4
75.0
75.6
76.2
76.8
Histogram
73.66 40
30
74.11 74.41 74.71
75.31 75.61 75.91
?1S (68.3%)
?2S (95.4%)
?3S (99.7%)
76.36
20
?4.5S (99.9993%)
10
Frequency
0
74.0
74.4
74.8
75.2
75.6
76.0
76.4
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- excess insurance umbrella insurance and multi insurer
- arup info 3005 key to units and abbreviations
- process capability analysis and process analytical technology
- factors influencing the decline in stroke mortality
- what does ppm or ppb mean
- quest diagnostics units of measure uom
- powers of 10 scientific notation
- measurement analysis 1 measurement uncertainty and
- understanding your lab test results
Related searches
- data analysis and interpretation pdf
- analysis and conclusion examples
- financial analysis and interpretation
- process capability template
- process of monitoring and evaluation
- data analysis and interpretation examples
- 12 qualitative data analysis and design
- investment analysis and portfolio management
- pros and cons of technology in classrooms
- data analysis and interpretation research
- quantitative analysis and qualitative analysis
- advantages and disadvantages of technology at school