Office machines and printing machines used for information processing — Widths of one-time paper or ...
Includes the principal widths to be retained for narrow one-time paper or plastic printing ribbons (19 mm width and less) intended for office machines and printing machines used for information processing. Also defines the location of the marking indicating the approach of the end of the ribbons for office machines. Reference: ISO 2257.
Classification. Class index system. Permissible errors for each class. Conditions for testing. Conditions for use. Methods of testing. Markings. Information to be supplied by the manufacturer.
Multichannel amplitude analyzers. Types, main characteristics and technical requirements
Applies to multichannel amplitude analyzers with linear amplitude response used for acquisition, storage and processing of amplitude distribution characteristics. This type of equipment, used essentially in nuclear instrumentation, performs the following operations: reception of information from detection sub-assemblies or probes; analogue-to-digital conversion of amplitude information; selection…
Informative guide for subjective tests on television receivers
Specifies procedure for determining the image quality of television receivers by subjective viewing tests. Gives requirements for programmes, the test room and viewing conditions, number and qualification of panellists and the conditions in which they work.
The viewing tests are carried out by comparison against a reference television receiver. The subjective evaluation based on this guide…