ISO 6846:1992
p
ISO 6846:1992
13355

Abstract

 Preview

Pertains to all conventional silver-halide contact and enlarging papers used for continuous-tone or pictorial photography. The method is based on exposing and processing samples, performing density measurements from the resultant image to produce a sensitometric curve from which measurements are taken and used to determine ISO speed and ISO range values. Annexes A to C deal with the relationships between the paper range and the effective density range of the negative, log exposure range and contrast, and log exposure range and average gradient.


General information 

  •  :  Published
     : 1992-12
  •  : 2
     : 9
  •  : ISO/TC 42 Photography
  •  :
    37.040.20 Photographic paper, films and plates. Cartridges

Buy this standard

en
Format Language
std 1 61 PDF
std 2 61 Paper
  • CHF61

Life cycle


Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.