ISO 6344-2:2021

Name: ISO 6344-2:2021 — Coated abrasives — Determination and designation of grain size distribution — Part 2: Macrogrit sizes P12 to P220
SKU: ISO 6344-2:2021
Price: 25 EUR
Availability: InStock

Coated abrasives — Determination and designation of grain size distribution — Part 2: Macrogrit sizes P12 to P220

Название (английский):

ISO 6344-2:2021

Coated abrasives — Determination and designation of grain size distribution — Part 2: Macrogrit sizes P12 to P220

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 11
Дата публикации:: 30 ноября 2021 г.
Издание:: ISO IS 6344 edition 2 version 1
ICS:: 25.100.70

Тип поставки:

Full version25 €Ask AI2 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:1 рабочий день

Цена:25 €

Описание (английский):

This document specifies a method for determining and testing the grain size distribution of electro-fused aluminium oxide and silicon carbide macrogrit sizes P12 to P220 for coated abrasive products. It is applicable to grits used in the manufacture of coated abrasive products and to grits extracted from coated abrasive products for test purposes.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 6344-2:2021 specifies a standardized method for determining and designating the grain size distribution (particle size distribution, PSD) of macrogrit used in coated abrasives. It covers electro‑fused aluminium oxide and silicon carbide macrogrits in sizes P12 to P220. The standard defines a comparative sieving analysis using a prescribed nest of test sieves (see Table 1 in the standard), reference Macro‑P‑Mastergrits and the criteria for acceptance of grit lots or grits extracted from coated abrasive products.

Keywords: ISO 6344-2:2021, coated abrasives, grain size distribution, macrogrit P12–P220, sieving analysis, Macro‑P‑Mastergrits.

Key topics and technical requirements

Scope and materials: Applies to electro‑fused aluminium oxide and silicon carbide macrogrits used in manufacture or recovered from coated abrasive products.

Grain size designation: Grain size distribution for each P size (P12–P220) is defined in Table 1 with required residue ranges across five sieves and the bottom pan.

Test method: Comparative sieve analysis using Macro‑P‑Mastergrits and the test portion on the same nest of sieves (Clause 5). Test sieving machines shall conform to ISO 9284.

Sampling and preparation: Test portions are dried at 105 °C until constant weight; standard test portion is 100 g (minimum 20 g for recovered grains). Sampling/splitting in accordance with ISO 9138.

Apparatus and tolerances: Utility sieves per ISO 3310‑1; balance accuracy ≥ ±0.1 g; sieving time controlled (5 min with ±5 s allowance). Macro‑P‑Mastergrits are reference materials with certified sieving reports and tighter tolerances.

Evaluation criteria: Defined limits for residues on individual sieves and cumulative residues (Q values). All material must pass the coarsest designated sieve (Q = 0 for sieve 1); additional limits for sieves 2–5 and pan remainder are specified in the standard.

Quality control: Procedures to check serviceability of utility test sieves using Macro‑P‑Mastergrits and correction of sieve-specific values.

Applications and users

ISO 6344-2:2021 is intended for:

Coated abrasive manufacturers (quality control, specification compliance)

Test laboratories and QA/QC departments performing PSD analysis on abrasive grits

Raw material suppliers certifying electro‑fused aluminium oxide or silicon carbide grits

R&D teams optimizing abrasive formulations and process control

Procurement/specification engineers who require standardized grit designation

Practical benefits include reproducible PSD data, consistent product labelling (P sizes), improved process control, and easier supplier verification.

Related standards

ISO 3310‑1 - Test sieves (metal wire cloth)

ISO 9138 - Abrasive grains - Sampling and splitting

ISO 9284 - Abrasive grains - Test-sieving machines

Other parts of ISO 6344 (microgrit or additional methods) for complete coated abrasives grading

Using ISO 6344-2:2021 ensures harmonized, traceable testing and clear designation of macrogrit PSD for coated abrasive products.

ISO 6344-2:2021

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 9284:2013

Abrasive grains — Test-sieving machines

ISO 9138:2015

Abrasive grains — Sampling and splitting

BS ISO 3310-1:2016

Test sieves. Technical requirements and testing. Test sieves of metal wire cloth.