ISO 5439:1978
ISO · 1978-09
Acid-grade fluorspar; Determination of available fluorine content; Potentiometric method after distillation
1Key Takeaways
Specifies a potentiometric method using a fluoride-ion sensitive electrode. After destillation of fluorine from the test portion in the presence of perchloric acid the distillate shall be titrated with lanthane nitrate solution. Applicable to products having a calcium fluoride content greater than 90 %.
2Scope / Description
Specifies a potentiometric method using a fluoride-ion sensitive electrode. After destillation of fluorine from the test portion in the presence of perchloric acid the distillate shall be titrated with lanthane nitrate solution. Applicable to products having a calcium fluoride content greater than 90 %.
3Version History
ISO 5439:1978
1978-09
5Citation Network
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6Frequently Asked Questions
What is ISO 5439:1978?
ISO 5439:1978 — Acid-grade fluorspar; Determination of available fluorine content; Potentiometric method after distillation is an international standard developed by International Organization for Standardization (ISO). Specifies a potentiometric method using a fluoride-ion sensitive electrode. After destillation of fluorine from the test portion in the presence of perchloric acid the distillate shall be titrated with lanthane nitrate solution. Applicable to...
What does ISO 5439:1978 cover?
This standard covers: Specifies a potentiometric method using a fluoride-ion sensitive electrode. After destillation of fluorine from the test portion in the presence of perchloric acid the distillate shall be titrated with lanthane nitrate solution. Applicable to products having a calcium fluoride content greater than...
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 5439:1978?
The current published version is ISO 5439:1978, published on 1978-09. Always check for amendments or pending revisions.
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