Definitions - std10540009

DOE-STD-1054-93

2. D EFIN ITION S

2. 1

Acronyms Used in this Standard. The acronyms used in this standard are defined as

follows:

M&TE - Measuring and Test Equipment

NIST - National Institute of Standards and Technology

SSC - Structures, Systems, and Components

2. 2

Calibration. The comparison of readings from the instruments being tested with

validated readings observed on the measurement standards.

2. 3

Certification. An indication by the appropriate authority that the deviations

determined in the calibration do not exceed specified limits.

2. 4

Gross Error. An out-of-tolerance condition for an instrument in the M&TE Program

which may result in an unacceptable product. When a plant guide has not been

prepared or does not list gross error limits, any condition outside the calibration

limits, defined by supervision in the group using the equipment, is considered a gross

error.

Measuring & Test Equipment. M&TE includes all devices or sy stems used to

2. 5

calibrate, certify, measure, gauge, troubleshoot, test, or inspect in order to control

data or to acquire data to verify conformance to specified requirements. M&TE does

not include permanently installed plant instrumentation, nor does it include test

equipment used for preliminary checks where data obtained is not used to determine

acceptability or verify conformance to established criteria.

Primary Standards. Calibrated by the National Institute for Standards and

2. 6

Technology (NIST) or other authoritative reference source. Its use should be

restricted to the standards laboratory.

2. 7

Recall Program.

A sy stem to recall and service measuring and test equipment

(M&TE).

2. 8

Secondary Standards. Calibrated by comparison with a primary standard of the same

measurement modes. It should be used by laboratory personnel and stored in the

standards laboratory. Use by other than standards laboratory personnel should be

limited to that approved by the applicable manager.