NAPM IT2.5 : 0
Current
The latest, up-to-date edition.
PHOTOGRAPHY - BLACK-AND-WHITE PICTORIAL STILL CAMERA NEGATIVE FILM/PROCESS SYSTEMS - DETERMINATION OF ISO SPEED
Hardcopy
English
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Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Sampling and storage
5 Test method
6 Product classification
7 Product marking and labelling
Table
1 ISO speed scales
Figure
1 Method for determining speed
Annexes
A Suggested method for determining log 10 Hm
B Bibliography
Defines methods for the determination of ISO speed of black-and-white negative camera films used for pictorial still photography. Applicable to conventional equipment and chemicals. Not applicable to aerial photography, motion picture, micrographic or radiographic applications, or graphic arts, nor to negatives produced in diffusion transfer systems.
| DevelopmentNote |
Revision and redesignation of ANSI PH2.5-1979(R1986)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
National Association of Photographic Manufacturers, Inc.
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| ISO 6:1993 | Identical |
| ISO 5-3:2009 | Photography and graphic technology Density measurements Part 3: Spectral conditions |
| ISO 7589:2002 | Photography Illuminants for sensitometry Specifications for daylight, incandescent tungsten and printer |
| ISO 5-2:2009 | Photography and graphic technology Density measurements Part 2: Geometric conditions for transmittance density |
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