Photography — Vesicular microfilm — Determination of ISO speed and ISO range

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

09-23-1993

Publisher

International Organization for Standardization

The principle of the method specified is exposing and processing samples as specified, obtaining density measurements from the resultant images to produce a sensitometric curve from which values are taken and used to determine ISO speed and ISO range. The method applies to vesicular microfilms which have their principal spectral sensitivity in the region of 350 nm to 450 nm and are used to produce negative-appearing images from positive originals and positive-appearing images from negative originals.

Committee	ISO/TC 42
DocumentType	Standard
Pages	9
PublisherName	International Organization for Standardization
Status	Current

I.S. EN 28378-3:1991	INFORMATION PROCESSING - DATA INTERCHANGE ON 130 MM (5.25 IN.) FLEXIBLE DISK CARTRIDGES USING MODIFIED FREQUENCY MODULATION RECORDING AT 7958 FTPRAD, 3,8 TPMM (96 TPI), ON BOTH SIDES - PART 3: TRACK FORMAT B
EN 28378-3 : 1989	INFORMATION PROCESSING - DATA INTERCHANGE ON 130 MM (5.25 IN.) FLEXIBLE DISK CARTRIDGES USING MODIFIED FREQUENCY MODULATION RECORDING AT 7958 FTPRAD, 3,8 TPMM (96 TPI), ON BOTH SIDES - PART 3: TRACK FORMAT B