ISO 6186:2023 PDF

Name: ISO 6186:2023 — Plastics — Determination of pourability
SKU: ISO 6186:2023
Price: 25 EUR
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Plastics — Determination of pourability

Название (английский):

ISO 6186:2023

Plastics — Determination of pourability

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 4
Дата публикации:: 12 июля 2023 г.
Издание:: ISO IS 6186 edition 3 version 1
ICS:: 83.080.01

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Описание (английский):

This document specifies two methods, A and B, for determining the pourability of plastics in powdered and granular form, by measuring the flow time through a funnel under specified conditions. From method A, information concerning the processability can be derived, whilst method B is especially designed for process control during manufacture. The methods specified are not necessarily applicable to all plastics in powdered and granular form.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 6186:2023 specifies laboratory methods for determining the pourability of plastics in powdered and granular form by measuring the flow time through a standard funnel under defined conditions. The standard defines two test methods - Method A (used to derive information about processability) and Method B (intended primarily for process control during manufacture). The methods measure the time a defined mass or volume takes to pass through a funnel and are not necessarily applicable to every powdered or granular plastic.

Key topics and technical requirements

Principle: Measure flow time for a defined test portion through a funnel of specified geometry and surface finish.

Funnel specifications:

Metal funnel (e.g., stainless steel) with polished interior and surface roughness Ra ≈ 0.8 (ISO 21920-2).
Standard outlet diameters: 10 mm, 15 mm, 25 mm (other diameters may be agreed and require height adjustment to keep the funnel angle).
Funnel must be earthed to discharge electrostatic charges and fitted with an outlet closing device.

Apparatus accuracy:

Stopwatch or timing device accurate to 0.1 s.
Balance accurate to 0.1 g.

Conditioning: Test “as received” unless atmosphere affects results. If required, condition samples 24 h at 23 °C ±1 °C and 50 % ±5 % RH per ISO 291.

Procedure:

Start tests with d = 10 mm; if the material won’t flow, repeat with 15 mm or 25 mm.
Method A: Pour 150 g ±1 g into funnel (avoid compaction), remove closing device and time until empty. Three determinations with fresh portions.
Method B: Overfill funnel, level off, remove closing device and time until empty. Three determinations.
If electrostatic charge prevents flow, repeat with an agreed antistatic agent and report its use.

Results and reporting:

Report mean flow time to the nearest whole second, with method and nozzle (e.g., t = 22 s A10 or B15).
Describe flow behavior: flows too fast, flows uniformly, flows intermittently, or does not flow.
Test report must include reference to ISO 6186:2023, material ID, moisture content (if relevant), antistatic agent details, method used, individual and mean results, deviations and test date.

Applications and users

ISO 6186:2023 is used for:

Material suppliers and compounders to characterize powder/granule flow behavior and processability.

Production quality control and process engineers for monitoring and controlling dosage, feeding, and handling of plastic powders/granules.

R&D and testing laboratories troubleshooting flow problems, specifying feed system requirements, or comparing formulations (including masterbatches and recycled powders).

Keywords: ISO 6186:2023, pourability, plastics, powdered and granular, funnel flow test, method A, method B, process control, processability.

ISO 6186:2023 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

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