ISO 3300-1976 rus PDF
Name in English:
St ISO 3300-1976 rus
Name in Russian:
Ст ISO 3300-1976 rus
Original standard ISO 3300-1976 rus in PDF full version. Additional info + preview on request
Full title and description
ISO 3300:1976 — Photographic grade sodium thiosulphate, anhydrous — Specification. This entry is often catalogued in some collections or translations as "St ISO 3300-1976 rus" when a Russian-language version or listing is available; the original international publisher is the International Organization for Standardization (ISO).
Abstract
Specification for photographic‑grade anhydrous sodium thiosulfate covering required quality and purity characteristics for use in photographic processing. The document defines acceptable purity levels and related requirements; the 1976 edition has been withdrawn and its subject matter incorporated into a later consolidated specification (ISO 10636:1994) which describes purity requirements and test methods (insoluble matter, heavy metals, iron, acidity/alkalinity, sulfide, pH, appearance of solution).
General information
- Status: Withdrawn / superseded.
- Publication date: May 1976 (Edition 1).
- Publisher: International Organization for Standardization (ISO).
- ICS / categories: 37.040.30 — Photographic chemicals / Photography (ISO/TC 42).
- Edition / version: Edition 1 (1976).
- Number of pages: 4 pages.
(Key lifecycle note: ISO 3300:1976 was formally withdrawn and revised by ISO 10636:1994.)
Scope
This standard sets out specifications for photographic‑grade anhydrous sodium thiosulphate intended for photographic processing. Scope items typically include the chemical identity and assay, limits for impurities and insoluble matter, required physical appearance of solutions, and provisions for testing, packaging and labelling relevant to photographic use. The 1976 edition has been withdrawn in favour of a later specification that expands and consolidates purity and test-method requirements.
Key topics and requirements
- Chemical identity and assay (required content of active thiosulfate species).
- Limits on insoluble matter and particulate contamination.
- Limits for metallic impurities (heavy metals, iron) and sulfide.
- pH and appearance requirements for aqueous solutions used in photographic processing.
- Prescribed test methods for determining purity and impurity limits (analytical tests referenced or described).
- Packaging, storage and labelling recommendations to preserve chemical quality for photographic use.
These topic areas are consistent with the consolidated requirements later presented in ISO 10636:1994.
Typical use and users
Users include photographic chemical manufacturers and suppliers, photographic processing laboratories, quality/control analytical laboratories, and archivists or conservators who require defined reagent quality for photographic processing and conservation. Laboratories and procurement units consult the specification when sourcing photographic‑grade sodium thiosulphate or when specifying acceptance tests.
Related standards
Primary related and successor documents: ISO 10636:1994 — Photography — Processing chemicals — Specifications for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate (revises/combines earlier documents including ISO 3300:1976). Other related photographic‑chemical and testing standards (e.g., parts of the Photography committee ISO/TC 42 suite) provide complementary test methods and storage/handling guidance.
Keywords
photographic chemicals; sodium thiosulfate; anhydrous; thiosulphate; purity; test methods; photographic grade; ISO 3300; ISO 10636; ISO/TC 42.
FAQ
Q: What is this standard?
A: ISO 3300:1976 is an International Organization for Standardization specification titled "Photographic grade sodium thiosulphate, anhydrous — Specification" that defines quality and purity requirements for photographic‑grade anhydrous sodium thiosulphate.
Q: What does it cover?
A: It covers the specification of photographic‑grade anhydrous sodium thiosulphate including required purity characteristics, limits on impurities and insoluble matter, and related requirements for material suitable for photographic processing. The detailed modern test-method and limit descriptions are consolidated in the later ISO 10636:1994.
Q: Who typically uses it?
A: Chemical suppliers and manufacturers of photographic reagents, photographic processing and printing laboratories, quality control and analytical labs, conservators and purchasers who need to specify or verify photographic‑grade sodium thiosulphate.
Q: Is it current or superseded?
A: ISO 3300:1976 has been withdrawn (withdrawal recorded in 1994) and its subject matter was revised and superseded by ISO 10636:1994. For current, published requirements and test methods consult ISO 10636:1994 or later national/adopted equivalents.
Q: Is it part of a series?
A: It sits within the set of ISO standards maintained by ISO/TC 42 (Photography) covering photographic chemicals and test methods; its subject was later combined with related thiosulfate specifications in ISO 10636.
Q: What are the key keywords?
A: Photographic grade, sodium thiosulphate (sodium thiosulfate), anhydrous, purity, photographic chemicals, test methods, ISO 3300, ISO 10636.