ISO 3435:1977 PDF

Name: ISO 3435:1977 — Continuous mechanical handling equipment — Classification and symbolization of bulk materials
SKU: ISO 3435:1977
Price: 25 EUR
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Continuous mechanical handling equipment — Classification and symbolization of bulk materials

Название (английский):

ISO 3435:1977

Continuous mechanical handling equipment — Classification and symbolization of bulk materials

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 2
Дата публикации:: 1 февраля 1977 г.
Издание:: ISO IS 3435 edition 1 version 1
ICS:: 53.040.01

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Описание (английский):

Establishes a classification and symbolization of bulk materials in order to assist communication between manufacturers and users of handling equipment. The object of the classification is to secure from enquirers an accurate description of the material to be handled in respect of any specific project.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 3435:1977 - Continuous mechanical handling equipment - establishes a unified classification and symbolization of bulk materials to improve communication between manufacturers and users of handling equipment. The standard defines how to describe particle size, shape, cohesion/flowability, bulk (apparent) density, temperature and special material properties so that equipment selection, specification and procurement are accurate and repeatable.

Key Topics

Scope: Classification and symbolization rules for bulk materials to be handled by continuous mechanical equipment.

Granularity / Particle size: Materials are characterized by particle-size distribution and the maximum particle dimension (d), defined as the largest edge of the minimum rectangular parallelepiped enclosing a particle. Materials are split into classified (dmax/dmin ≤ 2.5) and unclassified (dmax/dmin > 2.5) types; users are encouraged to provide full granulometric analysis and samples when needed.

Particle shape: Six shape classes (I–VI) describe angular, rounded, elongated, platelike and fibrous forms, with examples to aid consistent symbolization.

Cohesion and flowability: A numerical scale (1–6) describes material flow behaviour from highly fluid (dust-like) to non-flowing, with associated natural repose-angle ranges used to infer handling behavior.

Material properties: Lowercase letter symbols indicate functional properties relevant to transportability (examples: abrasive, corrosive, fragile, explosive, inflammable, dusty, wet - with percent moisture - sticky, hygroscopic, nauseating). Multiple property symbols may apply.

Apparent bulk density: Expressed in tonnes per cubic metre (t/m3), defined as the mass per volume as delivered to the handling device.

Temperature: Material temperature should be reported in °C; if variable, provide minimum and maximum.

Applications

ISO 3435:1977 is practical for:

Specifying conveyors, bucket elevators, feeders, hoppers, chutes and screening equipment

Sizing and selecting components for bulk solids handling (belts, screws, vibratory feeders, pneumatic systems)

Preparing procurement questionnaires and vendor data sheets to avoid misunderstandings about material characteristics

Risk assessment and process design where particle size, cohesion, density and special hazards affect performance and safety

ISO 3435:1977 PDF

Abstract

Похожие стандарты

ISO 3435:1977 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Who uses this standard

Related standards

Технические детали

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