Section 70. Densities

Latest version.

All densities shall be consistent throughout the microform. The background density on negative appearing original silver masters shall meet or exceed 1.8. Background density on positive appearing silver masters shall be no greater than 0.30. Measurements are made using a densitometer properly calibrated from a step tablet.

Historical Notes

Derived from VR440-01-137.5 § 5.3, eff. July 9, 1986; and October 1, 1991; amended, Volume 17, Issue 14, eff. May 1, 2001.

Statutory Authority

§§ 42.1-8 and 42.1-82 of the Code of Virginia.

                    
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