ISO 18918:2000
Imaging materials — Processed photographic plates — Storage practices
Imaging materials — Processed photographic plates — Storage practices
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 20
- Дата публикации:
- 23 марта 2000 г.
- Издание:
- ISO IS 18918 edition 1 version 1
- ICS:
- 37.040.20
1.1 This International Standard specifies dark storage conditions, storage facilities, and handling and inspecting procedures for processed photographic plates having integral photographic layers and intended for record purposes. 1.2 This International Standard is applicable to black-and-white, silver-image, gelatin, processed photographic plates as defined in 3.7.7. It is also applicable to medium-term and extended-term storage conditions as defined in 3.6 and 3.2, respectively. No specific distinction is made, other than the degree of care, between photographic plates for medium-term or extended-term storage. Recommendations for plate storage relate to materials, methods, conditions, and forms of protection applicable specifically to plates defined in 1.1. However, these storage recommendations may also be applied to lacquered and opaque plates, to black-and-white plates altered by dyes or toners, colour plates and other historic photographic plates defined in 3.7.2 to 3.7.8. 1.3 It is not intended to predict or assign a useful lifetime to processed photographic plates stored in accordance with the specifications of this International Standard. 1.4 Recommendations for storage of photographic films are given in ISO 18911 and for storage of processed photographic reflection print material in ISO 18920. Although there is some variation in recommended storage conditions among these types of photographic materials, recommended temperature and relative humidity ranges do overlap. If all three types of photographic materials are found in one collection or within one storage area, the temperature and relative humidity should be chosen so that all materials are stored within their recommended ranges.
Abstract
Overview
ISO 18918:2000 - "Imaging materials - Processed photographic plates - Storage practices" - provides international guidance for dark storage, storage facilities, and handling/inspection procedures for processed photographic plates. The standard is targeted primarily at black-and-white, silver‑image, gelatin photographic plates but its recommendations can also be applied to lacquered, opaque, dyed or toned black‑and‑white plates, colour plates and other historic plate types. ISO 18918 defines two levels of care: medium‑term and extended‑term storage conditions, and addresses the main environmental and physical hazards that affect plate preservation.
Key topics and requirements
- Scope and applicability
- Applies to processed photographic plates with integral photographic layers; distinguishes medium‑term and extended‑term storage (see definitions in the standard).
- Does not assign a guaranteed lifetime for plates stored under the recommended conditions.
- Storage enclosures and containers
- Recommendations for filing enclosures, sleeves, envelopes, boxes and multiple‑plate containers.
- Plates should be stored vertically, resting on a long edge, not flat, to avoid pressure and stress, especially with historic glass supports.
- Storage housing and furniture
- Guidance on drawer cabinets, shelving, racks and cabinets suitable for plate collections.
- Environmental conditions
- Temperature and relative humidity control are central; detailed ranges and historic data are provided in annexes (D, E, F).
- Air quality and gaseous impurities considerations are covered (annex G).
- Fire‑protective storage
- Recommendations for fire‑resistant vaults, insulated record containers and related fire protection measures (annex H).
- Handling, identification and inspection
- Procedures for labeling, safe handling to avoid scratches and fingerprints, periodic inspection and monitoring (annexes C, F, I).
- Supporting technical guidance
- Informative annexes on silver‑image degradation, storage records, and distinctions between archival record copies and working copies.
Practical applications and users
ISO 18918 is used by:
- Archives, libraries, museums and cultural heritage institutions managing photographic plate collections
- Conservation and preservation professionals, collections managers and records managers
- Photographic and imaging specialists planning storage, rehousing, or transfer of plate collections
- Facilities planners specifying HVAC, fire protection and storage furniture for photographic archives
Practical uses include developing plate‑specific storage policies, selecting appropriate enclosures and cabinets, designing environmental control strategies, and establishing handling and inspection protocols.
Related standards
- ISO 18911 - Storage practices for processed safety photographic films
- ISO 18920 - Storage practices for processed reflection prints
- ISO 18902 - Filing enclosures and storage containers (related guidance)
- ISO 14523 - Photographic activity test for enclosure materials
Keywords: ISO 18918, photographic plates storage, processed photographic plates, storage practices, medium‑term storage, extended‑term storage, archival storage, temperature and humidity, enclosures, fire protection.
Технические детали
- Технический комитет
- ISO/TC 42 - Photography
- SKU
- ISO 18918:2000
Похожие стандарты
Стандарты, упомянутые в описании