Defines an interval about the measurement result that encompasses a large fraction p of the probability distribution characterized by that result and its combined standard uncertainty, and p is the coverage probability or level of confidence of the interval
All phases in the life of the system from initial requirements until retirement including design, specification, programming, testing, installation, operation, and maintenance.
The planned, formal, periodic, and scheduled examination of the status and adequacy of the quality management system in relation to its quality policy and objectives by the organization’s top management.
A measurement system is the set of equipment, conditions, people, methods, and other quantifiable factors that combine to determine the success of a measurement process.
Operations that are independent of an established calibration laboratory facility. Mobile operations may include work from an office space, home, vehicle, or the use of a virtual office.
Formerly known as the National Conference of Standards Laboratories (NCSL). NCSL was formed in 1961 to “promote cooperative efforts for solving the common problems faced by measurement laboratories.
Operations that are based in or directly supported by an established calibration laboratory facility, but actually perform the calibration actions at customer locations.
A performance test (or performance verification) is the activity of verifying the performance of an item of measuring and test equipment to provide assurance that the instrument is capable of making correct measurements when it is properly used.
Precision is a property of a measuring system or instrument. Precision is a measure of the repeatability of a measuring system – how much agreement there is within a group of repeated measurements of the same quantity under the same conditions.
