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A deviation from the contractual performance requirements or approved drawings should be submitted as a RFD. [4] An RFD is a specific written authorization to depart from a particular requirement of an item's approved configuration documentation for a specific number of units or period of time. A deviation does not change configuration ...
A copy of the AAI (Appearance Approval Inspection) form signed by the customer. Applicable for components affecting appearance only. Sample Production Parts A sample from the same lot of initial production run. The PPAP package usually shows a picture of the sample and where it is kept (customer or supplier). Master Sample
Firstly, while the sample variance (using Bessel's correction) is an unbiased estimator of the population variance, its square root, the sample standard deviation, is a biased estimate of the population standard deviation; because the square root is a concave function, the bias is downward, by Jensen's inequality.
Typically, a supplier performs the FAI and the purchaser reviews the report. The FAI process usually consists of fully testing and inspecting either the first part produced by the new process or a sample from the first batch of parts. First article inspection is typically a purchase order requirement of the purchaser for the supplier to complete.
TOFD – time of first data sample (on seismic trace [citation needed]) TOFS – time of first surface sample (on seismic trace) TOH – trip out of hole; TOOH – trip out of hole; TOL – top of liner; TOL _ Top of Lead Cement; TOP - Top of Pipe; TORAN – torque and drag analysis; TOT – Top of Tail Cement
A purchase order request or purchase requisition is a request sent internally within a company to obtain purchased goods and services, including stock. The request is a document which tells the purchasing department or manager exactly what items and services are requested, the quantity, source and associated costs.