ISO 5437:1992
ISO · 1992-12
Acid-grade and ceramic-grade fluorspar; determination of barium sulfate content; gravimetric method
1Key Takeaways
The method is based on evaporation to dryness of a test portion in the presence of hydrofluoric acid and concentrated sulfuric acid, extraction of the soluble salts from the mixture, filtration, drying and weighing of the residual barium sulfate. Applies to products having barium sulfate contents equal to or greater th…
2Scope / Description
The method is based on evaporation to dryness of a test portion in the presence of hydrofluoric acid and concentrated sulfuric acid, extraction of the soluble salts from the mixture, filtration, drying and weighing of the residual barium sulfate. Applies to products having barium sulfate contents equal to or greater than 0,1 % (m/m).
3Version History
ISO 5437:1992
1992-12
5Citation Network
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6Frequently Asked Questions
What is ISO 5437:1992?
ISO 5437:1992 — Acid-grade and ceramic-grade fluorspar; determination of barium sulfate content; gravimetric method is an international standard developed by International Organization for Standardization (ISO). The method is based on evaporation to dryness of a test portion in the presence of hydrofluoric acid and concentrated sulfuric acid, extraction of the soluble salts from the mixture, filtration, drying and weighing of the residual barium sulfate....
What does ISO 5437:1992 cover?
This standard covers: The method is based on evaporation to dryness of a test portion in the presence of hydrofluoric acid and concentrated sulfuric acid, extraction of the soluble salts from the mixture, filtration, drying and weighing of the residual barium sulfate. Applies to products having barium sulfate contents...
Who should use this standard?
This standard is intended for organizations, professionals, and stakeholders involved in various industries and sectors. It is applicable to manufacturers, service providers, regulatory bodies, and certification organizations.
What is the latest version of ISO 5437:1992?
The current published version is ISO 5437:1992, published on 1992-12. Always check for amendments or pending revisions.
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