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GRIM-3

Glass Refractive Index Measurement, third-generation instrument by Foster + Freeman (UK); an automated phase-contrast hot-stage system that identifies the RI match point by curve-fitting the phase-contrast edge signal vs temperature, achieving ±0.00015 RI unit precision.

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Related terms

ASTM E1967ENFSI ENG3-2013ASTM E2927Bayesian likelihood ratioBayesian likelihood ratio (LR)Becke lineCauchy equationDispersionHotelling's T2Immersion methodLA-ICP-MSLocke 1985 protocol

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