MSA type1 type2 type3 type4 type 5

type1 stydy
used for : examination of the gages capability cgk( manual and automatical systems)
implementation: 1 appraiser/ 1 measuring location, 1 gage/ 1 traceable standard
collect 50 consecutive measurments of the same characteristic, then calculate capability cg and cgk
requirments: cg, cgk>=1.33


type 2 study
Used for: repeatability and reporducibility %GRR( manual system)
Implementation: 3 appraisers/ 1 measurment location, 1 gage/ 10 production parts(sample)
Perform 2 trials per appraiser, afterwards calculate the %GRR rating as well as the number of distinct categories ndc, using the tolerance as reference figure
requirment:
0%<%GRR>=10%----system is accetapble
10%<%GRR>30%--system may be acceptable, depending from the importance of the measurment and the costs of the system
30%<%GRR>x%--system is not acceptable, corrective actions must be found
ndc>=5---not less, for reasons of process control


Type 3 study
Used for: repeatability and reporducibility %GRR( automatical system)
Implementation: 1 appraisers/ 1 measurment location, 1 automatica gage/ 25 production parts(sample)
Perform 2 trials per part, remove parts between trials (unclamping and removal)
requirment:
0%<%GRR>=10%----system is accetapble
10%<%GRR>30%--system may be acceptable, depending from the importance of the measurment and the costs of the system
30%<%GRR>x%--system is not acceptable, corrective actions must be found
ndc>=5---not less, for reasons of process control


there are also have type 4 type5, and different application