ISO 6344-1-1998 (1999) PDF

Full title and description

St ISO 6344-1-1998 (corrected 1999) — "Coated abrasives — Grain size analysis — Part 1: Grain size distribution test". This part defines the grain size distribution test and associated definitions for electro‑fused aluminium oxide and silicon carbide grits used in coated abrasive products (corrected English version published January 1999).

Abstract

This standard specifies methods and definitions for determining the grain size distribution of fused alumina and silicon carbide grits used in coated abrasives, covering both macrogrits and microgrits (macrogrits P12–P220; microgrits P240–P2500). It was published as Edition 1 in April 1998 with a corrected English version in January 1999 and has since been withdrawn and superseded by later parts in the ISO 6344 series.

General information

• Status: Withdrawn / withdrawn from the ISO catalogue.
• Publication date: Edition 1 published April 1998; corrected English version January 1999.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.100.70 (Abrasive products).
• Edition / version: Edition 1 (1998), corrected version (1999).
• Number of pages: 6 (as published by ISO).

Scope

Applies to grain size distribution testing and related definitions for electro‑fused aluminium oxide and silicon carbide grits intended for coated abrasives. The part addresses both macrogrits (P12 to P220) and microgrits (P240 to P2500). Tests for detailed grain size analysis are further defined in subsequent parts of the series (ISO 6344‑2 and ISO 6344‑3).

Key topics and requirements

• Definitions and terminology for grit types used in coated abrasives.
• Procedure for grain size distribution test applicable to fused alumina and silicon carbide grits.
• Designation ranges for macrogrits (P12–P220) and microgrits (P240–P2500).
• Reference to part 2 and part 3 for the detailed determination and designation methods (macrogrit and microgrit specific procedures).
• Sampling and testing notes intended for use by manufacturers and testing laboratories to ensure consistent sizing of abrasive grain.

Typical use and users

Used historically by manufacturers of coated abrasives, quality control and materials testing laboratories, procurement/specification engineers, and standards committees concerned with abrasive product grading and interchangeability. Since the part has been withdrawn, current users should refer to the later ISO 6344 parts for up‑to‑date methods.

Related standards

ISO 6344-2 and ISO 6344-3 (updated 2021 revisions) provide the current, detailed procedures for macrogrit and microgrit determination and designation that supersede or replace the older Part 1 content. The ISO 6344 series is closely related to regional grit designation systems such as FEPA, which cover grit designations for coated abrasives.

Keywords

coated abrasives; grain size analysis; grain size distribution; fused alumina; silicon carbide; grit designation; macrogrit; microgrit; ISO 6344; abrasive testing.

FAQ

Q: What is this standard?

A: ISO 6344‑1:1998 is the first part of the ISO 6344 series titled "Coated abrasives — Grain size analysis — Part 1: Grain size distribution test", published as Edition 1 in April 1998 with a corrected English version in January 1999.

Q: What does it cover?

A: It covers definitions and a grain size distribution test for electro‑fused aluminium oxide and silicon carbide grits used in coated abrasives, addressing macrogrits (P12–P220) and microgrits (P240–P2500), with references to later parts for more detailed procedures.

Q: Who typically uses it?

A: Manufacturers of coated abrasives, QC and R&D laboratories, purchasers specifying abrasive products, and standards bodies. Today, these users generally consult the newer ISO 6344 parts for current test methods.

Q: Is it current or superseded?

A: ISO 6344‑1:1998 has been withdrawn; its content has been superseded by later parts of the ISO 6344 series (notably ISO 6344‑2:2021 and ISO 6344‑3:2021). Users should refer to those parts for the current, authoritative methods.

Q: Is it part of a series?

A: Yes — ISO 6344 is a multi‑part series on grain size analysis for coated abrasives. Part 1 (this document) was the original grain size distribution test; parts 2 and 3 contain the updated, detailed determination and designation procedures.

Q: What are the key keywords?

A: Grain size distribution, coated abrasives, fused alumina, silicon carbide, grit designation, macrogrit, microgrit, ISO 6344.