ISO 23028:2019 PDF
Aluminium oxide primarily used for the production of aluminium — Preparation and storage of test samples
Aluminium oxide primarily used for the production of aluminium — Preparation and storage of test samples
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 8
- Дата публикации:
- 23 июля 2019 г.
- Издание:
- ISO IS 23028 edition 1 version 1
- ICS:
- 71.100.10
This document describes methods for the sample preparation of smelter-grade aluminium oxide. It covers the reduction of a bulk sample between 1 kg and 20 kg to produce a sample that is suitable for chemical and physical analysis. The reduced sample produced will be representative of the initial bulk sample. The bulk sample is considered to be from one source. The methods are suitable for dry, free-flowing aluminium oxide. As the moisture content will influence many physical analyses, the method aims to minimize the exposure of the sample to the atmosphere to avoid water absorption.
Abstract
Overview
ISO 23028:2019 specifies methods for the preparation and storage of test samples of smelter‑grade aluminium oxide (alumina). The standard covers reduction of a bulk sample (1 kg to 20 kg) to representative portions suitable for chemical and physical analysis. It is intended for dry, free‑flowing aluminium oxide and emphasizes minimizing atmospheric exposure to avoid water absorption that can affect analytical results.
Keywords: ISO 23028:2019, aluminium oxide sample preparation, smelter‑grade aluminium oxide, sample storage, test samples.
Key topics and technical requirements
- Scope and principle
- Procedures ensure the reduced sample is representative of the initial bulk from one source.
- Mixing and rotary splitting are the primary methods for homogenization and division.
- Apparatus
- Rotary splitter (large): stainless steel recommended; minimum of eight receivers; receiver capacity up to 2 kg; design to minimize fall distance and fines loss.
- Small rotary splitter: receivers up to 250 g; minimum eight receivers; may require vibratory feeder.
- Laboratory top‑pan balance: capacity ~4 kg with 1 g readability.
- Airtight sample bottles, brush, powder funnel.
- Fines control
- If determining particles
Технические детали
- Технический комитет
- ISO/TC 226 - Materials for the production of primary aluminium
- SKU
- ISO 23028:2019
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