Accreditation
/ Certification>>>Traceability
 Measurements
Traceability
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To
be established through unbroken chain
of calibrations or comparisons linking
them to relevant primary standards
of the SI units of measurement.
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To
have procedure and program for reference
standards calibration and their handling,
storage, transportation. |
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Calibration
is to be done by only accredited lab |
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The
reference standard is to be used only
for calibration to ensure the validity
of performance. |
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| Reference
Materials must
be : |
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Characterized
(certified value), stable, homogeneous |
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Certified,
traceable materials purchased from reputable
sources |
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Reference
materials and items used for no other
purpose than calibration. |
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Check intermediate
materials and items regularly against
reference standards |
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Store reference
items and materials carefully |
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