tolerance interval


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tolerance interval

[′täl·ə·rəns ‚in·tər·vəl]
(analytical chemistry)
That range of values within which it has been calculated that a specified percentage of individual values of measurements will lie with a stated confidence level.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
To determine reference interval parameter values, the 2-sided tolerance interval was calculated for normally distributed data, and the distribution-free 2-sided tolerance interval was used for other values.
Points of the surface 6 (Phase 20) Points [M.sub.1] [M.sub.2] [M.sub.3] X 0 59 59 Y -45 -45 -45 Z 49 49 39 a 0 0 0 b -1 -1 -1 c 0 0 0 [V.sub.positionning] 1.4145E-04 1.6458E-04 1.5811E-04 [V.sub.machining] 1,46465E-05 1,4816E-05 1,5098E-05 total variance 0,0001560965 0,000179396 0,000173208 Tolerance interval 0,07496315 0,07936327 0,07896510 (6/0) 0,07936327 Points [M.sub.4] X 0 Y -45 Z 39 a 0 b -1 c 0 [V.sub.positionning] 1.3498E-04 [V.sub.machining] 1,47E-05 total variance 0,00014968 Tolerance interval 0,07340626 (6/0) 4.3 Results and comparisons
The set of "Specifications" includes tolerances and type of inspection operation, such as nominal size, tolerance interval, type of GD&T tolerance, measurement in depth, and so on.
In our case study, the paracone method seems superior to other methods in terms of both MSB% and tolerance interval. The paracone method which is based on empirical evidence about the center of gravity of the tree bole requires a total tree height measurement for finding the position of center, in order to measure the diameter of this point.
As measured by the UND1X, inflation has been below the Riksbank's inflation target since October 2003, and inflation has generally been less than the lower limit of the tolerance interval.
Once a risk has been assessed, an organization should determine an appropriate risk response (avoid, reduce, share, or accept), defined as one that will manage the inherent risk (the risk as originally identified before any action is taken) in such a manner that any risk remaining after a response has been taken (i.e., residual risk) will fall within a risk tolerance interval consistent with the organization's risk appetite.
The overall population 95% tolerance interval (columns 3 and 4) provides a measure of between-child variability.
The total analytical error of the lipid and lipoprotein measurements with each device was determined from 95% tolerance intervals of the ratio of intrasubject mean values with the test compared with the comparison method.[14] The tolerance interval describes the performance range within which individual subject values will fall 95% of the time.
The 100(P)% two-sided tolerance interval with confidence 100(1-[alpha])% is of the form [bar.x] [+ or -] [k.sub.2]s for which the following applies: