GOST 19790-74 PDF

Full title and description

GOST 19790-74 — "Селитра калиевая техническая (калий азотнокислый технический). Технические условия" (English: Technical potassic saltpetre (technical potassium nitrate). Specifications). The standard defines technical requirements, grades and basic handling/packaging rules for technical-grade potassium nitrate (KNO3).

Abstract

This standard establishes requirements for technical potassium nitrate used in chemical, glass, radio‑ and electrical engineering, mechanical engineering and other industries, and for retail trade. It covers product designation, grades, key chemical and physical quality parameters, sampling and test methods, packaging, marking, storage and transport provisions applicable to the technical product.

General information

• Status: Not in force / listed as withdrawn or out of effect in some registries (historical GOST).
• Publication date: Approved 14 May 1974; date of introduction (effective date) 01 July 1975.
• Publisher: Approved by the State Committee for Standards of the Council of Ministers of the USSR (Gosstandart); developed by the USSR Ministry of Chemical Industry.
• ICS / categories: ICS 71.060.50 (Salts / inorganic chemical substances).
• Edition / version: Original designation GOST 19790-74 (1974/1975); the text was maintained with several amendments/extension-of-validity notices (amendments recorded in later years).
• Number of pages: Source documents list between ~19 and ~29 pages depending on edition/format and publisher copy.

Scope

Applies to technical potassium nitrate (KNO3) intended for industrial uses (chemical manufacture, glass and optical industries, radio‑ and electrical engineering, metallurgy, pyrotechnics and related sectors) and to retail supply. The standard covers product classification by grades, basic chemical composition and purity limits, physical properties (appearance, moisture), methods for acceptance testing and sampling, packaging types and marking, and handling/transport and storage recommendations.

Key topics and requirements

• Designation and product name: technical potassic saltpetre (potassium nitrate, KNO3).
• Grades/classes: typical division into grades (commonly referenced as marks A, B, V / A, B, C in practice) to reflect purity and intended applications.
• Chemical quality parameters: minimum content of KNO3, moisture limits, and limits on chloride and other impurities (specified numerically in the standard text).
• Physical and organoleptic requirements: appearance (white to slightly off‑white crystalline powder), solubility and particle/size or lump limits where applicable.
• Sampling and analytical methods: prescribed procedures for taking samples and laboratory tests to verify composition and impurity levels.
• Packaging, marking and storage: approved bag types (multi‑layer paper or polymer liners), marking information, and transport/storage conditions and shelf‑life for specific marks.
• Safety and handling references: cross‑references to occupational safety and transport norms related to inorganic salts and oxidizing materials.

Typical use and users

Users include chemical manufacturers, glass and optical producers, fertilizer producers and distributors, electro‑technical and metallurgical plants, pyrotechnic and explosives sectors (where allowed by regulation), research and analytical laboratories, and quality/compliance personnel responsible for raw materials procurement and incoming inspection. Retailers and agricultural suppliers handling fertilizer grades also commonly reference the standard.

Related standards

GOST 19790-74 replaces earlier standards cited in its introduction (for example, GOST 1949-65 and GOST 5.1138-71). The standard text also references normative documents on safety, sampling and test methods (for example, relevant GOSTs for safety and analytical procedures). In practice, product quality and transport/storage are managed together with current national or industry standards that supersede or supplement Soviet‑era GOSTs.

Keywords

GOST 19790-74; potassium nitrate; potassic saltpetre; KNO3; technical potassium nitrate; селитра калиевая; technical conditions; fertilizer; chemical specifications; packaging; sampling; test methods.

FAQ

Q: What is this standard?

A: GOST 19790-74 is a Soviet‑era standard that defines technical specifications (technical conditions) for technical potassium nitrate (potassic saltpetre, KNO3), covering product composition, grades, testing, packaging and handling.

Q: What does it cover?

A: It covers the definition and designation of the product, grade classification, chemical and physical quality limits, sampling and test procedures, packaging and marking requirements, storage and transport recommendations, and references to safety and analytical norms.

Q: Who typically uses it?

A: Producers and processors of potassium nitrate, fertilizer suppliers, glass and electro‑technical manufacturers, laboratories performing quality control, procurement and compliance teams, and distributors who reference product specifications use this standard.

Q: Is it current or superseded?

A: Many registries list GOST 19790-74 as withdrawn or no longer in force in current national catalogs; however, the technical content is still commonly cited in product specifications and by suppliers. For formal compliance check which current national or interstate standard (if any) replaces it in your jurisdiction before relying on it for regulatory purposes.

Q: Is it part of a series?

A: It is a single product standard within the chemical sector (ICS 71.060.50). It replaced earlier GOSTs for potassium nitrate and references other normative documents (safety, sampling, testing). Related standards cover sampling methods, safety rules and transport/packaging norms for inorganic salts and oxidizing chemicals.

Q: What are the key keywords?

A: Potassium nitrate; KNO3; potassic saltpetre; technical potassium nitrate; селитра калиевая; GOST 19790-74; specifications; fertilizer; chemical purity; packaging; sampling.