ISO 4296-2-1983 PDF

Full title and description

ISO 4296-2:1983 — Manganese ores — Sampling — Part 2: Preparation of samples. Specifies procedures for preparing representative samples of natural or processed manganese ores for subsequent determination of chemical composition and moisture content; includes requirements for sample division equipment (riffle divider) and handling.

Abstract

This part of ISO 4296 defines methods for reducing and preparing samples taken from consignments of manganese ore so that they are suitable for laboratory determination of chemical composition and moisture. It covers general rules for sample preparation, equipment, sample division, labelling and accuracy, and includes an annex describing the riffle divider to be used.

General information

• Status: Published — confirmed as current on 25 March 2022.
• Publication date: December 1983 (Edition 1, 1983-12).
• Publisher: ISO (International Organization for Standardization).
• ICS / categories: 73.060.20 (Manganese ores).
• Edition / version: Edition 1 (1983).
• Number of pages: 7 pages.

Scope

Applies to the preparation of samples of manganese ores (natural or processed) taken for the purpose of determining chemical composition and moisture content. The standard specifies how to reduce increments or larger laboratory samples to test portions, the acceptable sampling equipment and procedures (including a riffle divider described in an annex), marking and documentation of samples, and considerations for accuracy and representativity.

Key topics and requirements

• Procedures for reducing bulk or increment samples to laboratory test portions while preserving representativity.
• Specification and use of sample division equipment, including the riffle (slot) divider described in the annex.
• Requirements for sample handling, splitting, mixing and subsampling to avoid segregation and bias.
• Labelling, documentation and traceability of prepared samples and test portions.
• Recommendations on minimum test portion masses and on checking preparation accuracy.
• Applicability to both natural and processed manganese ores and compatibility with chemical and moisture determination methods.

Typical use and users

Used by mining and processing companies, quality control and assay laboratories, commodity traders, inspection agencies and regulatory bodies involved in the dispatch, acceptance and testing of manganese ore consignments. Typical users implement the procedures to obtain representative test portions for contractual analysis (chemical composition, moisture) and for internal quality control.

Related standards

Standards commonly used alongside ISO 4296-2 include ISO 4296-1 (Part 1: Increment sampling, published 1984), ISO 4297 (Methods of chemical analysis — general instructions), ISO 4298 / ISO 4298 revisions (determination of manganese content), ISO 4299 (Determination of moisture content, 1989 edition), ISO 6230 (Determination of size distribution by sieving) and other ISO/TC 132 publications on manganese ores and ferroalloys. National adoptions and national variants of ISO 4296-2 may also exist.

Keywords

manganese ores; sampling; sample preparation; sample division; riffle divider; subsampling; moisture determination; chemical analysis; ISO/TC 132; ferroalloys.

FAQ

Q: What is this standard?

A: ISO 4296-2:1983 is the part of the ISO 4296 series that specifies methods for preparing samples of manganese ores for laboratory analysis (chemical composition and moisture).

Q: What does it cover?

A: It covers procedures for reducing bulk or increment samples to representative test portions, requirements for sample division equipment (including a riffle divider), handling, labelling and accuracy considerations for both natural and processed manganese ores.

Q: Who typically uses it?

A: Mining and ore-processing companies, QC and assay laboratories, independent inspection bodies, commodity traders and regulators involved in acceptance and dispatch testing of manganese ore consignments.

Q: Is it current or superseded?

A: ISO 4296-2:1983 remains published and was last reviewed and confirmed as current on 25 March 2022; it is not shown as superseded as of that confirmation date.

Q: Is it part of a series?

A: Yes. It is Part 2 of the ISO 4296 series on manganese-ore sampling; Part 1 (ISO 4296-1:1984) covers increment sampling and related documents in the ISO/TC 132 programme cover analysis and related test methods.

Q: What are the key keywords?

A: Manganese ores, sampling, sample preparation, riffle divider, sample splitting, moisture determination, chemical analysis.