SIST EN 61262-6:1995

SIST EN 61262-6:1995 is a Slovenian standard from SIST for medical electrical equipment. It specifies a method for determining the contrast ratio (CR) and veiling glare index (VGI) of electro-optical X-ray image intensifiers used as components of diagnostic X-ray equipment. Engineers, test laboratories, manufacturers and buyers can use it to compare these image intensifier characteristics on the same basis.

What does SIST EN 61262-6:1995 specify?

SIST EN 61262-6:1995 applies to electro-optical X-ray image intensifiers for medical use when they are used as components of diagnostic X-ray equipment. The standard is focused on one task: determining two image characteristics, CR and VGI.

SIST EN 61262-6:1995 is part 6 of the series on characteristics of electro-optical X-ray image intensifiers. In practice, that means this document is not a general equipment specification - it is the test method for two specific performance measures.

What are the key requirements of SIST EN 61262-6:1995?

SIST EN 61262-6:1995 gives a method for measuring contrast ratio (CR). CR is the characteristic used to express how well the image intensifier preserves contrast between bright and dark areas. For users, this matters because it helps show how clearly image details can be distinguished.

Veiling glare index

SIST EN 61262-6:1995 also gives a method for measuring veiling glare index (VGI). VGI describes the unwanted glare effect that reduces image contrast by spreading light across the image. In practice, a lower glare effect usually means the image intensifier is less likely to wash out fine detail.

Medical-use diagnostic application

SIST EN 61262-6:1995 applies to electro-optical X-ray image intensifiers used in medical diagnostic X-ray equipment. That scope matters because the method is intended for components that sit inside a larger imaging system, not for unrelated display or optical devices.

Standardized comparison

SIST EN 61262-6:1995 provides a common basis for testing and comparing devices. This is important for procurement, quality control and product verification because different suppliers can be assessed with the same measurement approach.

Performance characterization

SIST EN 61262-6:1995 is about characterizing image quality rather than defining the full design of the equipment. In practice, readers use it to document measured CR and VGI values and to judge whether an image intensifier meets the expected level for a given application.

What terms does SIST EN 61262-6:1995 define?

• Electro-optical X-ray image intensifier - an X-ray image device that converts X-ray information into an optical output image for medical viewing or further processing.
• Contrast ratio (CR) - the measure used to describe the contrast produced by the image intensifier between different parts of the image.
• Veiling glare index (VGI) - the index used to describe glare that spreads over the image and reduces visible contrast.
• Diagnostic X-ray equipment - X-ray equipment used for medical diagnosis, where image quality affects how features are seen.
• Medical use - use in a medical environment or for medical imaging applications.
• Component - a part used inside a larger diagnostic X-ray system rather than a complete standalone system.

Who uses SIST EN 61262-6:1995?

SIST EN 61262-6:1995 is used by manufacturers of electro-optical X-ray image intensifiers and by producers of diagnostic X-ray equipment. It is also relevant to test laboratories, quality assurance teams, and technical staff who verify image characteristics.

Buyers, hospital engineering teams and procurement specialists can use it when comparing products or checking supplier data. That is useful when the decision depends on measured image quality rather than on general product descriptions.

What does the SIST EN 61262-6:1995 document contain?

SIST EN 61262-6:1995 contains the method for determining CR and VGI for electro-optical X-ray image intensifiers. Its technical content is centered on these two measurements, so it is mainly a testing and verification document.

The standard is structured around the series topic rather than around broad equipment requirements. For a reader, the practical value is in having a defined way to measure and report image-intensifier contrast and glare characteristics.

It supports tasks such as product testing, comparison of supplier claims, and technical documentation for diagnostic X-ray components.