prefaţă

ISO (Organizația Internațională pentru Standardizare) este o alianță globală a organismelor naționale de standardizare (organismele membre ISO). Elaborarea standardelor internaționale se realizează de obicei prin intermediul comitetelor tehnice ISO. Fiecare instituție membră interesată de un subiect pe care a fost înființat un comitet tehnic are dreptul de a fi reprezentată în respectivul comitet. Organizațiile internaționale guvernamentale și neguvernamentale care au legătură cu ISO sunt, de asemenea, implicate în această activitate. ISO lucrează îndeaproape cu Comisia Electrotehnică Internațională (IEC) pe toate problemele de standardizare electrotehnică.

Proiectele de standarde internaționale adoptate de Comitetul Tehnic vor fi transmise organelor membre pentru vot. Publicarea ca standard internațional necesită aprobarea de cel puțin 75% a organelor membre.

Standardul internațional ISO 11798 a fost dezvoltat de Comitetul Tehnic ISO/TC 46, Informare și documentare, Subcomisia 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 Informare și documentare – Persistența și durabilitatea scrisului, tipărirea și copierea pe hârtie – Cerințe și metode de testare

introduce
Writing materials and devices that meet the requirements of this international standard may be used to prepare paper documents with stable and durable images, adică. 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, imprimare, 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, precum rezistența la uzură, 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.

În acest standard, the requirements are based on

— image color intensity and appearance;

— rezistență la lumină;

– impermeabil;

– transmission of recorded images;

— rezistenta la uzura;

— heat resistance;

– 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. in orice caz, 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. Prin urmare, conclusions based on studies of older documents in libraries and archives are of limited use when discussing the persistence of modern documents.

Strict vorbind, 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. In practica, 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 gamă
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” gamă;

— 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, radiatii (such as light), high concentrations of contaminants, or water that may promote microbial attack. in orice caz, 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 referințe normative
Următoarele standarde conțin prevederi care, de referință, constituie prevederile acestui standard internațional. La momentul publicării, versiunea afisata este valabila. 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. Membrii IEC și ISO țin un registru al standardelor internaționale în vigoare în prezent.

ISO 5-3:1995, Fotografie – Măsurarea densității – Parte 3: Spectral conditions.

ISO 1924-2:1994, Hârtie și carton. Determinarea proprietăților de tracțiune. Parte 2: Constant elongation method.

ISO 2470:-1), hârtie, placă și pastă — Measurement of diffuse blue reflectance (Luminozitate ISO).

ISO 4892-2:1994, Materiale plastice. Metode de expunere la surse de lumină de laborator. Parte 2: Xenon arc sources.

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

ISO 7724-1: — 2) Vopsele și lacuri — colorimetric methods — Parte 1: Principii.

ISO 7724-2: — 3) Vopsele și lacuri — colorimetric methods — Parte 2: Measurement of colour.

ISO 7724-3: — 4) Vopsele și lacuri — colorimetric methods — Parte 3: Calculation of colour difference in CIELAB.

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

ISO 9706-1994, Informare și documentare. Paper for documents. Permanent requirement

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

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

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

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

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

3 Definiție
În sensul prezentului standard, se aplică următoarele definiții:

3.1

copie

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

[Sursă: ISO 5127-1:19,836)]

3.3

durabilitate

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

3.4

imagine

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.

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

3.9

imprimare

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

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

Doar secțiunea de informații standard este publică. Pentru a vedea conținutul complet, trebuie să achiziționați standardul prin canalele oficiale.