ISO 11928-2:2000 PDF

Name: ISO 11928-2:2000 — Micrographics — Quality control of graphic COM recorders — Part 2: Quality criteria and control
SKU: ISO 11928-2:2000
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Micrographics — Quality control of graphic COM recorders — Part 2: Quality criteria and control

Название (английский):

ISO 11928-2:2000

Micrographics — Quality control of graphic COM recorders — Part 2: Quality criteria and control

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 11
Дата публикации:: 17 февраля 2000 г.
Издание:: ISO IS 11928 edition 1 version 1
ICS:: 37.080

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Описание (английский):

This part of ISO 11928 describes methods for using test frames specified in ISO 11928-1 to monitor the image quality of microforms from graphic COM recorders. It applies to graphic COM recorders that are capable of producing both alphanumeric and graphic images output on to black-and-white films.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 11928-2:2000 - "Micrographics - Quality control of graphic COM recorders - Part 2: Quality criteria and control" defines methods to monitor and control the image quality of microforms produced by graphic COM recorders that output alphanumeric and graphic images onto black‑and‑white film. It is intended to be used with the test frames specified in ISO 11928-1 and supports initial qualification, routine quality checks and troubleshooting of COM‑generated microforms so they are comparable with conventional microfilm.

Key topics and technical requirements

Test frames and usage: Procedures for applying the test frames from ISO 11928-1 to evaluate COM output, including which frames to record at start/end of test sequences.

Evaluation and test runs: Guidance on running initial characterization tests, retaining reference samples, re‑running tests when deterioration is detected, and recording results for audit.

System tolerances: Requirement to establish and document acceptable tolerances in agreement with equipment suppliers.

Geometric checks: Measurements for frame size, linearity, orthogonality, line straightness, line width, image centering and positioning using a microscope with a measuring stage.

Resolution and legibility: Methods to determine smallest resolvable line groups and the smallest legible characters (letter “e” groups) - resolution testing follows ISO 3334 procedures and uses microscope magnification ~1–3× effective reduction ratio.

Density measurement: Use of densitometry in accordance with ISO 5‑2 and ISO 5‑3 to measure minimum and maximum diffuse densities; the standard provides acceptable density limits by film/process type.

Special image checks: Tests for radial recording, curved‑line accuracy (distance from circumference to centre, constant spacing for double lines) and character display/rotation (distortion and character formation).

Annex on line density: Informative guidance on correlating COM image line characteristics with duplicating/printing exposure and compatibility with source‑document microforms.

Practical applications

Qualifying new graphic COM recorders before production use

Routine quality control in micrographics labs, archives and reprographic services

Troubleshooting image defects (geometric distortion, density, loss of resolution, character rotation)

Ensuring COM‑generated drawings are comparable with conventional microfilm for storage, aperture‑card workflows and duplication

Related standards

ISO 11928-1 (test frame characteristics)

ISO 3334 (resolution test chart)

ISO 5‑2, ISO 5‑3 (density measurement)

ISO 3272 series (source‑document microforms)

ISO 6196 (micrographics vocabulary)

ISO 11928-2 is a practical, measurement‑based standard for anyone responsible for ensuring the fidelity and interoperability of COM‑generated microforms.

ISO 11928-2:2000 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications

Who should use this standard

Related standards

Технические детали

BS ISO 11928-1:2000

Micrographics. Quality control of graphic COM recorders. Characteristics of the test frames.

BS ISO 3334:2006

Micrographics. ISO resolution test chart No 2. Description and use.

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BS ISO 5354-1:2025

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ISO 3272-1:1983

Microfilming of technical drawings and other drawing office documents — Part 1: Operating procedures

ISO 6196-4:1987

Micrographics — Vocabulary — Part 4: Materials and packaging