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absorbance, A

Standard

ECSS-Q-ST-70-05C Rev.1

Definition

logarithm to the base 10 of the reciprocal of the transmittance [ASTM-E-131]

Notes

NOTE The term absorbance is also widely used for the negative log of the ratio of the final to the incident intensities of processes other than transmission, such as attenuated total reflection and diffuse reflection.

Relations

ECSS-E-ST-20C Rev.1 — A
ECSS-E-ST-32-01C Rev. 1 — ASTM
ECSS-E-ST-32-08C Rev. 1 — ASTM
ECSS-E-ST-10-04C Rev.1 — ASTM
ECSS-Q-ST-70-37C — ASTM
ECSS-Q-ST-70-45C — ASTM
ECSS-Q-ST-70-46C Rev. 1 — ASTM
ECSS-Q-ST-70-55C — ASTM
ECSS-Q-ST-70-14C — ASTM
ECSS-Q-ST-70-05C Rev.1 — ASTM
ECSS-S-ST-00-01C — ASTM

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