předmluva

ISO (Mezinárodní organizace pro normalizaci) je globální aliance národních normalizačních orgánů (členy ISO). Vývoj mezinárodních norem se obvykle provádí prostřednictvím technických komisí ISO. Každá členská instituce, která se zajímá o předmět, pro který byla ustavena technická komise, má právo být v této komisi zastoupena. Do této práce jsou zapojeny také mezinárodní vládní a nevládní organizace, které jsou ve spojení s ISO. ISO úzce spolupracuje s Mezinárodní elektrotechnickou komisí (IEC) ve všech záležitostech elektrotechnické normalizace.

Návrhy mezinárodních norem přijaté Technickou komisí budou rozeslány členským orgánům k hlasování. Publikace jako mezinárodní norma vyžaduje schválení min 75% členských orgánů.

International standard ISO 11798 byl vyvinut technickou komisí ISO/TC 46, Information and Documentation, Podvýbor SC 10, Physical Preservation of Documents.

Annexes A and B form an integral part of this international standard. Annex C is for reference only.

ISO 11798-1999 Information and Documentation – Persistence and durability of writing, printing and copying on paper – Requirements and test methods

představit
Writing materials and devices that meet the requirements of this international standard may be used to prepare paper documents with stable and durable images, tj. images that may have little or no variation in characteristics affecting readability, and the possibility of copying or converting paper documents into other data carriers, such as microforms.

It is primarily used for writing, tisk, and copying on writing and printing paper as well as copying paper.

This standard specifies the requirements and test methods for assessing image stability. Certain properties of the image, such as wear resistance, depend on the combination of the image and the paper. Permanent files (ISO 9706) and archival files (ISO 11108) used to prepare files can differ greatly in attributes that are important for image quality and persistence. The test conditions of this standard are selected in order to obtain results representative of the majority of papers on the market for a particular imaging process.

V tomto standardu, the requirements are based on

— image color intensity and appearance;

— light resistance;

– voděodolný;

– transmission of recorded images;

— odolnost proti opotřebení;

— odolnost vůči teplu;

– Record the influence on the mechanical strength of the paper.

More stringent limits and other requirements than those set out in this international standard may be required when testing materials and machinery for documents of the highest durability and durability.

Experience has shown that images written with India ink, as well as printed images using commercial printing inks, are highly durable. nicméně, in many documents, acid inks have affected the paper to the point of paper corrosion, and images produced by dry or liquid toner are also susceptible to aging problems.

The experience of modern images is limited to a few decades. Images prepared with modern materials and machinery are often completely different from older images in terms of composition and properties. Proto, conclusions based on studies of older documents in libraries and archives are of limited use when discussing the persistence of modern documents.

Strictly speaking, the only way to test the persistence of an image is to process the document and store it under relevant conditions for a long time, perhaps hundreds of years. V praxi, one must rely on observations of documents that are only a few years old, and an assessment of the impact of factors known to affect the persistence and persistence of images.

1 rozsah
This standard sets out requirements and test methods for assessing the persistence and durability of writing, printing and copying on paper stored for long periods in libraries, archives and other protected environments.

It is applicable to

— Images on paper, except for documents within the ISO/TC 42 “photography” rozsah;

— Colorful images.

The information content of a color image should be preserved, but not necessarily the full artistic quality of the color image. Files whose information content is subject to minor colour changes are not covered by this standard.

It doesn’t apply to

– Documents stored under harmful conditions, such as the effects of high humidity, overheating, radiation (jako je světlo), high concentrations of contaminants, or water that may promote microbial attack. nicméně, because files may be kept in an unprotected environment before being transferred to a protected environment, water and light resistance are important;

– Legal documents, such as bank documents, where authenticity is a major concern.

2 Normativní odkazy
Následující normy obsahují ustanovení, která, Odkazem, tvoří ustanovení této mezinárodní normy. V době zveřejnění, uvedená verze je platná. All standards are subject to revision and Parties to an agreement based on this International Standard are encouraged to investigate the possibility of applying the latest versions of the following standards. Členové IEC a ISO vedou rejstřík aktuálně platných mezinárodních norem.

ISO 5-3:1995, Fotografování – Density measurement – Část 3: Spectral conditions.

ISO 1924-2:1994, Papír a lepenka. Stanovení tahových vlastností. Část 2: Constant elongation method.

ISO 2470:-1), papír, desky a buničiny — Measurement of diffuse blue reflectance (ISO brightness).

ISO 4892-2:1994, Plasty. Methods of exposure to laboratory light sources. Část 2: Xenon arc sources.

– ISO 5626:1993, Papír – Determination of folding durability.

ISO 7724-1: — 2) Barvy a laky — colorimetric methods — Část 1: Zásady.

ISO 7724-2: — 3) Barvy a laky — colorimetric methods — Část 2: Measurement of colour.

ISO 7724-3: — 4) Barvy a laky — colorimetric methods — Část 3: Calculation of colour difference in CIELAB.

ISO 9352:1995, Plasty. Determination of abrasion resistance of grinding wheels.

ISO 9706-1994, Information and Documentation. Paper for documents. Permanent requirement

ISO 12757-1:1998, Ballpoint pens and refill. Část 1: General purposes.

ISO 12757-2:1998, Ballpoint pens and refill Part 2: File Usage (DOC).

– ISO 14145-1:1998, Ball pens and refill. Část 1: General purposes.

ISO 14145-2:1998, Ball pens and refill — Část 2: File Use (DOC).

BS 3484:19915), specification for blue and black recording ink.

3 Definice
Pro účely této normy, platí následující definice:

3.1

copy

To produce an image on paper that is a replica of an image on another document carrier, for example by a photographic or electrostatic printing process

3.2

Official document

Recorded information that can be treated as a unit in the documentation process

[Source: ISO 5127-1:19,836)]

3.3

durability

The ability to resist the effects of wear in a performance situation

3.4

obraz

Pigments are distributed on paper as characters or other visually recognizable patterns

3.5

Monochrome image

A color record of the image

3.6

Colorful image

Consists of images recorded in a variety of colors, where colors form part of the information content

3.7

continuity

It can maintain chemical and physical stability for a long time

3.8

Permanent image

Images that have little or no change in properties affecting their use during long-term storage in libraries, archives, and other protected environments.

Poznámka 1: Examples of these properties are the stability of the created image (např. legibility and contrast) and the stability of the paper recording system.

3.9

tisk

Produce an image on paper from a printing press, a thermal printer, or a computer printer, such as a laser or inkjet printer

3.10

recording

Write, print and copy

3.11

Spot color image

Use different colors of the image in separate sections, so the colors don’t overlay

3.12

write

Make images on paper, one character or stroke at a time

Example: Hand drawing with pen or pencil, or by typewriter or pen plotter.

Veřejná je pouze standardní informační sekce. Chcete-li zobrazit celý obsah, musíte si standard zakoupit prostřednictvím oficiálních kanálů.