ISO 809:1973 PDF

Name: ISO 809:1973 — Magnesium and magnesium alloys — Determination of manganese — Periodate photometric method (Manganese content between 0,01 and 0,8 %)
SKU: ISO 809:1973
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Magnesium and magnesium alloys — Determination of manganese — Periodate photometric method (Manganese content between 0,01 and 0,8 %)

Название (английский):

ISO 809:1973

Magnesium and magnesium alloys — Determination of manganese — Periodate photometric method (Manganese content between 0,01 and 0,8 %)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 3
Дата публикации:: 1 декабря 1973 г.
Издание:: ISO IS 809 edition 1 version 1
ICS:: 77.120.20

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Описание (английский):

The method is applicable to the determination of manganese content in magnesium and magnesium alloys which do not contain zirconium, rare earths, or thorium. Specifies principle and procedure of the method, the reagents, apparatus, sampling, expression of results and test report.

Abstract

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Упомянутые в описании и другие стандарты ISO

Overview

The ISO 809:1973 standard specifies a periodate photometric method for the precise determination of manganese content in magnesium and magnesium alloys. This method applies to samples containing manganese between 0.01% and 0.8% by mass and excludes alloys containing zirconium, rare earth elements, or thorium. Developed by the International Organization for Standardization (ISO), this procedure defines all aspects necessary for accurate manganese analysis including reagents, apparatus, sample preparation, analysis process, and reporting guidelines.

This international standard ensures reliable and reproducible measurements crucial for quality control and composition verification in magnesium-based materials.

Key Topics

Scope and Applicability Ideal for magnesium and magnesium alloys without zirconium, rare earths, or thorium, covering manganese content from 0.01% to 0.8%.

Method Principle Utilizes oxidation of manganese (II) to manganese (VII) via potassium periodate in acidic conditions, followed by photometric measurement at approximately 525 nm wavelength to quantify manganese concentration.

Reagents Includes potassium periodate, sulfuric acid, nitric acid, phosphoric acid, hydrofluoric acid, sodium nitrite, and prepared manganese standard solutions.

Apparatus Requires common laboratory glassware and a spectrophotometer or photocolorimeter capable of measuring absorbance near 525 nm.

Sample Preparation and Sampling Specifies sampling techniques for test and laboratory samples, emphasizing the preparation of chips with a thickness ≤ 1 mm.

Calibration and Analysis Establishes calibration curves using manganese standard solutions and detailed sample digestion protocols involving acid treatments and controlled heating.

Measurement and Calculation Absorbance differences before and after reducing interfering permanganate ions are measured, allowing for precise manganese content calculations using standardized formulas.

Test Reporting Mandates complete test reports including method references, results with units, observations, and any procedural deviations.

Applications

Quality Control in Magnesium Engineering Enables manufacturers and testing labs to verify manganese levels in magnesium alloys, ensuring compliance with material specifications.

Material Certification Provides standardized data for certifying alloy composition in industrial production.

Research & Development Supports metallurgical studies and alloy formulation by enabling accurate manganese quantification.

Corrosion Resistance and Mechanical Property Analysis Helps in relating manganese content to performance properties in magnesium alloy products.

Related Standards

ISO 2353 – Photometric method for manganese in magnesium alloys containing zirconium, rare earth elements, thorium, and silver.

ISO 810 – Photometric method for manganese determination in magnesium and alloys at contents below 0.01%.

General ISO Standards for Sampling and Chemical Analysis of Metals

By adhering to ISO 809:1973, laboratories and industries benefit from a reproducible and internationally recognized method for manganese analysis in magnesium, facilitating product consistency and material performance assurance. Keywords such as magnesium alloys, manganese determination, photometric method, and periodate oxidation are central for search optimization related to metallurgical testing standards.

ISO 809:1973 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

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