ISO 3713-1987 PDF

Full title and description

ISO 3713:1987 — Ferroalloys — Sampling and preparation of samples — General rules. This International Standard gives general rules and methods for increment sampling and preparation of samples of ferroalloys supplied in bulk or packed form and for consignments in stationary stockpiles, covering manual and mechanical sampling and instructions for preparing samples for chemical examination.

Abstract

Provides general rules for the taking of increments and the subsequent preparation of samples of ferroalloys for chemical testing. Applies to sampling during loading/unloading and from stockpiles, and is intended to be used together with specific International Standards for individual ferroalloy types.

General information

• Status: Published (confirmed by ISO review as the current edition in 2020).
• Publication date: December 1987 (1987-12).
• Publisher: International Organization for Standardization (ISO), prepared by ISO/TC 132 (Metallurgy).
• ICS / categories: 77.100 (Ferroalloys).
• Edition / version: Edition 1 (1987).
• Number of pages: 14 pages (official published edition).

Scope

Specifies general rules for increment sampling and sample preparation of ferroalloys for chemical testing. The standard is applicable to consignments supplied in bulk or packed form and to stationary stockpiles, and it describes both manual and mechanical sampling methods and sample preparation procedures. It is not a replacement for specific sampling standards for individual ferroalloys but provides the general framework to be used with those standards.

Key topics and requirements

• Definition of sampling objectives and representativity for ferroalloy consignments.
• Methods for increment sampling during loading, unloading and from stockpiles (manual and mechanical procedures).
• Rules for combining and reducing increments to produce test samples and for preparation of samples for chemical analysis.
• Requirements to ensure traceability and to minimise sampling error and bias.
• Guidance to be used in conjunction with specific international or national standards for individual ferroalloys.

Typical use and users

Used by metallurgical laboratories, quality assurance and quality control personnel in ferroalloy and steel production, material inspection and testing organisations, commodity traders and shipping inspectors, and national standards bodies adopting or referencing sampling practice for ferroalloys. National adoptions and derived standards (for example by national standards bodies) commonly reference ISO 3713:1987 when setting local sampling procedures.

Related standards

ISO 3713:1987 is the general rules document for sampling ferroalloys and is intended to be read with the specific International Standards that cover sampling and testing procedures for particular ferroalloys. Several national standards and later national adoptions (for example GB/T 28372 and GOST equivalents) reference or adopt ISO 3713 as the basis for their national sampling rules.

Keywords

ferroalloys, sampling, sample preparation, incremental sampling, bulk consignments, stockpile sampling, manual sampling, mechanical sampling, chemical analysis, ISO 3713

FAQ

Q: What is this standard?

A: ISO 3713:1987 is an International Standard that sets out general rules for sampling and preparation of samples of ferroalloys for chemical testing. It provides the framework and procedures for representative increment sampling and sample preparation.

Q: What does it cover?

A: It covers increment sampling methods for consignments supplied in bulk or packed form and for stationary stockpiles, including both manual and mechanical sampling and rules for combining and reducing increments to produce samples for chemical examination. It is a general standard meant to be used alongside specific standards for individual ferroalloy types.

Q: Who typically uses it?

A: Metallurgical and chemical testing laboratories, QA/QC teams in ferroalloy and steel producers, inspectors and shipping/commodity inspectors, and standards/technical committees drafting or adopting national sampling procedures.

Q: Is it current or superseded?

A: The published edition is from December 1987. According to ISO records the publication was reviewed and confirmed (remained current) in 2020; users should check with ISO or their national standards body for any revisions or replacements after that confirmation date.

Q: Is it part of a series?

A: It serves as the general rules document within the family of sampling standards for ferroalloys; there are separate, specific standards and national adoptions that address sampling and testing for individual ferroalloy types which are intended to be used together with ISO 3713.

Q: What are the key keywords?

A: ferroalloys; sampling; sample preparation; incremental sampling; bulk consignments; stockpile; manual sampling; mechanical sampling; chemical analysis; representativity.