ISO 8531:1986 PDF

Name: ISO 8531:1986 — Manganese and chromium ores — Experimental methods for checking the precision of moisture determination
SKU: ISO 8531:1986
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Manganese and chromium ores — Experimental methods for checking the precision of moisture determination

Название (английский):

ISO 8531:1986

Manganese and chromium ores — Experimental methods for checking the precision of moisture determination

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 5
Дата публикации:: 13 ноября 1986 г.
Издание:: ISO IS 8531 edition 1 version 1
ICS:: 73.060.20

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Описание (английский):

The checking applies to manganese and chromium ores, whether natural or processed, being carried out in accordance with the methods specified in the relevant International Standards. Includes conditions for sampling, preparation of experimental samples and of final moisture samples and moisture testing, gives a data sheet and analyses the experimental data and results.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 8531:1986 is an International Standard developed by the International Organization for Standardization (ISO) that defines experimental methods for checking the precision of moisture determination in manganese and chromium ores. Applicable to both natural and processed ores, this standard ensures consistent, accurate moisture testing and sampling procedures aligned with relevant ISO standards. It covers sampling protocols, sample preparation, moisture testing procedures, data recording, and analysis of experimental results to verify precision.

This standard supports rigorous quality control in the mining and mineral processing industries by helping laboratories and companies assess and improve their moisture determination accuracy.

Key Topics

Scope and Application Applies to manganese and chromium ores whether natural or processed. Ensures moisture determination is conducted using prescribed ISO methods to maintain consistency and reliability.

Sampling Procedure Defines how to obtain gross samples or subsamples with specified mass increments. Sampling must comply with ISO 4296-1 for manganese ores and forthcoming ISO standards for chromium ores.

Sample Preparation Includes preparation of final moisture samples with specified particle size and mass (e.g., coarse ores: minus 22.4 mm, 5 kg). Careful handling is emphasized to prevent moisture loss during sample size reduction.

Moisture Testing Apparatus and Procedure Adheres to apparatus requirements and testing procedures outlined in ISO 4299 for manganese ores, with equivalent future standards for chromium ores.

Data Recording Recommends use of detailed data sheets to document experiment parameters such as ore type, moisture levels, sample mass, and particle size, supporting traceability and reproducibility.

Experimental Data Analysis Specifies statistical methods to calculate combined precision, standard deviation, and permissible tolerance limits for moisture determination, ensuring measurement fidelity.

Review and Quality Assurance Discusses evaluation of experimental results and corrective actions including inspection of sample preparation processes, operational instructions, and the potential revision of standard procedures.

Applications

Quality Control in Ore Processing Facilitates reliable moisture content measurement critical for ore valuation, processing decisions, and shipment specifications.

Laboratory Testing and Calibration Provides standardized methods for checking the precision of moisture testing, aiding labs in validating their procedures and equipment accuracy.

International Trade and Inspection Assists regulators and companies in demonstrating compliance with moisture content standards to avoid disputes during mineral sales.

Research and Development Supports experimental validation of new testing methods or equipment against established precision benchmarks for manganese and chromium ores.

Sampling Protocol Design Guides sampling strategy formulation to ensure representative sampling and minimize variability in moisture determination.

Related Standards

ISO 4296-1: Manganese ores - Sampling - Part 1: Increment sampling Details procedures for the collection of representative increments from ore consignments.

ISO 4296-2: Manganese ores - Sampling - Part 2: Preparation of samples Covers sample preparation methods to ensure homogenization and representativeness.

ISO 4299: Manganese ores - Determination of moisture content Specifies apparatus, testing procedures, and moisture content determination techniques.

Future ISO standards for Chromium Ores Similar sampling and moisture testing standards are in development to align chromium ore procedures with manganese ore methods.

Summary

ISO 8531:1986 is a critical standard for ensuring precision in moisture determination of manganese and chromium ores. By defining systematic experimental methods, precise sampling, sample preparation, and rigorous data analysis, it enhances quality control in mineral testing laboratories and ore production facilities. The standard’s application helps maintain reliability, harmonize international testing practices, and support transparent commercial transactions based on moisture content. Companies involved in ore processing, trade, and inspection benefit from adopting this ISO standard to uphold testing accuracy and regulatory compliance.

ISO 8531:1986 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Summary

Технические детали

SIST ISO 4296-1:1998

Manganese ores -- Sampling -- Part 1: Increment sampling

SIST ISO 4299:2001

Manganese ores -- Determination of moisture content

SIST ISO 4296-2:1998

Manganese ores -- Sampling -- Part 2: Preparation of samples