ISO 7329-1989 PDF

Full title and description

ISO 7329:1989 — Photography — Slide projectors — Determination of temperature rise in the picture area using a glass sandwich test slide. This International Standard specifies a practical, repeatable measuring method to determine the temperature reached in the central part of a glass-mounted test slide when used in a slide projector, enabling comparison of projector performance with respect to slide heating.

Abstract

Specifies a measuring method for determining the temperature reached in the central part of a glass-mounted test slide used in a slide projector. The method provides a practical and repeatable way to compare the temperature behaviour of different projectors and to identify performance that is higher or lower than that attained by typical glass-mounted slides.

General information

• Status: Withdrawn (withdrawal ballot completed 29 November 2006).
• Publication date: 13 April 1989 (Edition 1, 1989-04-13).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 37.040.10 (Photography).
• Edition / version: Edition 1 (1989).
• Number of pages: 3.

Scope

This standard defines a test procedure using a “glass sandwich” test slide and temperature measurement in the picture area (central part of the slide) to determine the temperature rise caused by operation of a slide projector. It covers required test specimen construction, measurement location and methodology, specified operating conditions (for reproducibility) and reporting of results so that different projectors can be compared objectively.

Key topics and requirements

• Definition and preparation of the glass-mounted test slide (glass sandwich) used as the specimen.
• Placement and type of temperature measurement (central picture area) to capture representative heating.
• Specified projector operating conditions (supply voltage/frequency and operating procedure) to ensure repeatability.
• Measurement timing and stabilization criteria — procedures to obtain comparable temperature readings between products.
• Reporting format and information required to interpret and compare temperature-rise results.

Typical use and users

Used by manufacturers and designers of slide projectors for product development and quality control, test laboratories evaluating projector thermal behaviour, safety and compliance assessors concerned with slide damage or fire risk, and photographic professionals or rental houses verifying projector suitability for glass-mounted slides.

Related standards

Related deliverables include other ISO/TC 42 photography standards and national equivalents dealing with projector performance, viewing conditions and photographic materials; laboratories will often pair ISO 7329 test results with standards on projector safety, lamp performance and photographic material handling when assessing overall suitability.

Keywords

ISO 7329:1989; slide projector; photography; temperature rise; glass sandwich test slide; picture area; projector testing; thermal measurement; ISO/TC 42.

FAQ

Q: What is this standard?

A: An ISO method (ISO 7329:1989) that specifies how to measure the temperature rise in the central picture area of a glass-mounted test slide when used in a slide projector, to allow objective comparisons between projectors.

Q: What does it cover?

A: It covers the glass sandwich test slide specimen, where to measure temperature (central picture area), required test and operating conditions for reproducibility, and the reporting of temperature-rise results so different projectors can be compared.

Q: Who typically uses it?

A: Projector manufacturers, independent test laboratories, photographic rental and service organisations, and safety/compliance assessors concerned with slide heating and related risks.

Q: Is it current or superseded?

A: ISO 7329:1989 was published on 13 April 1989 and has been withdrawn (withdrawal confirmed 29 November 2006). It is not an active current ISO International Standard.

Q: Is it part of a series?

A: It was produced by ISO/TC 42 (Photography) and aligns with other photographic equipment and materials standards from that technical committee, but it is a standalone test method rather than a numbered multi-part series.

Q: What are the key keywords?

A: Slide projector, temperature rise, glass sandwich test slide, picture area, projector testing, photography, ISO 7329:1989.