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| Material, sufficiently homogeneous and stable with respect to one or more specified quantities, used for the calibration of a measuring system, or for the assessment of a measurement procedure, or for assigning values and measurement uncertainties to quantities of the same kind for other materials |
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| Reference material, accompanied by an authenticated certificate, having for each specified quantity a value, measurement uncertainty, and stated metrological traceability chain Metrological Traceability |
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| Property of a measurement result relating the result to a stated metrological reference through an unbroken chain of calibrations of a measuring system or comparisons, each contributing to the stated measurement uncertainty |
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| Soil, Fertilizer | Sediment | Sea Water | Food |
Ceramic, Rock
| Cement |
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| Glass |
ICP, ICP-MS
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Certified Reference
Material of AOCS | Reference Material
of Korea | Reference Material of Japan | NIST |
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