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BS 7725-2.1:1994

Current
Current

The latest, up-to-date edition.

Evaluation and routine testing in medical imaging departments. Constancy tests Method for film processors
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-02-1994

Committees responsible
National foreword
Introduction
Method
1 Scope and object
2 References to other publications
3 Terminology
4 General aspects of constancy tests
5 Test procedure
6 Action to be taken
7 Statement of compliance
Annexes
A Terminology - Index of terms
B Example of a form for the standardized test report
C Guidance on action to be taken
D Rationale
E Procedures for initial setting up of the film
   processor
Figures
1 Variation in film base plus fog density, speed index
   and contrast index with developer temperature
   (optimization procedure)
2 Example of a control chart displaying the film base
   plug fog density, speed index and contrast index as a
   function of time

Describes constancy parameters in film processors and a method to check these parameters. Also gives detailed terminology, diagrams and annexes.

This technical report applies to those components of X-ray equipment which process radiographic film and other photographic materials in X-ray facilities in which any of the following radiographic or photographic materials are handled: all types of screen film; non-screen film; photographic film for indirect radiography, as used for recording output images of X-ray image intensifiers, other transferred radiological images; photographic material for copying radiograms; photographic material for making permanent images of information recorded by electronic means, and presented on display tubes, for example: hard copy cameras, or printed by other electronic means, for example: laser; as used in diagnostic equipment such as for general reconstructive tomography, digital imaging, ultrasound, nuclear medicine, magnetic resonance. The method described in this technical report is intended primarily for automatic film processors, but may be adapted for testing equipment for manual processing. This technical report is a part of a series of Particular Publications (standards and technical reports) which will describe test methods for the constancy of properties of various subsystems of diagnostic X-ray equipment, as described in IEC1223-1.

Committee
CH/62/2
DevelopmentNote
Also numbered as IEC 61223-2-1 Supersedes 88/56155 DC (10/2005) Reviewed and confirmed by BSI, December 2005. (11/2005)
DocumentType
Standard
Pages
24
PublisherName
British Standards Institution
Status
Current

BS 7725-3.2(1997) : 1997 EVALUATION AND ROUTINE TESTING IN MEDICAL IMAGING DEPARTMENTS - CHEMICAL METHODS - IMAGING PERFORMANCE OF MAMMOGRAPHIC X-RAY EQUIPMENT
BS EN 61223-2-4:1995 Evaluation and routine testing in medical imaging departments. Constancy tests Method for hard copy cameras
BS 7725-2.3:1994 Evaluation and routine testing in medical imaging departments. Constancy tests Method for darkroom safelight conditions
BS 7725-2.2:1994 Evaluation and routine testing in medical imaging departments. Constancy tests Method for radiographic cassettes and film changers and film-screen contact and relative sensitivity of the screen-cassette assembly
BS 7725-2.4(1995) : 1995 EVALUATION AND ROUTINE TESTING IN MEDICAL IMAGING DEPARTMENTS - CONSTANCY TESTS - METHOD FOR HARD COPY CAMERAS
BS 7725-2.5(1995) : 1995 EVALUATION AND ROUTINE TESTING IN MEDICAL IMAGING DEPARTMENTS - CONSTANCY TESTS - METHOD FOR IMAGE DISPLAY DEVICES
BS EN 61223-2-5:1995 Evaluation and routine testing in medical imaging departments. Constancy tests Method for image display devices
BS 7725-1:1994 Evaluation and routine testing in medical imaging departments. General
BS 7725-2.6(1995) : 1995 EVALUATION AND ROUTINE TESTING IN MEDICAL IMAGING DEPARTMENTS - CONSTANCY TESTS - METHOD FOR X-RAY EQUIPMENT FOR COMPUTED TOMOGRAPHY

ISO 8374:2001 Photography Determination of ISO safelight conditions
BS 5724-1(1989) : 1989 AMD 6715 MEDICAL ELECTRICAL EQUIPMENT - GENERAL REQUIREMENTS FOR SAFETY
BS 7725-2.3:1994 Evaluation and routine testing in medical imaging departments. Constancy tests Method for darkroom safelight conditions
BS 6641:1985 Glossary of medical radiology terms
BS 7725-1:1994 Evaluation and routine testing in medical imaging departments. General
ISO 8402:1994 Quality management and quality assurance — Vocabulary
ISO 4090:2001 Photography Medical radiographic cassettes/screens/films and hard-copy imaging films Dimensions and specifications

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