SIST EN ISO 1927-4:2013 PDF

Name: SIST EN ISO 1927-4:2013 — Monolithic (unshaped) refractory products - Part 4: Determination of consistency of castables (ISO 1927-4:2012)
SKU: SIST EN ISO 1927-4:2013
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Monolithic (unshaped) refractory products - Part 4: Determination of consistency of castables (ISO 1927-4:2012)

Название (английский):

SIST EN ISO 1927-4:2013

Monolithic (unshaped) refractory products - Part 4: Determination of consistency of castables (ISO 1927-4:2012)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 15
Дата публикации:: 14 ноября 2013 г.
ICS:: 81.080
Технический комитет:: IKER - Ceramics

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Описание (английский):

ISO 1927-4:2012 describes methods for the determination and measurement of the consistency of dense and insulating castables as defined in ISO 1927-1:2012. It is applicable to all types of dense regular castables, dense deflocculated castables and insulating castables to determine the liquid addition necessary for preparing test pieces according to ISO 1927-5:2012.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 1927-4:2012 - "Monolithic (unshaped) refractory products - Part 4: Determination of consistency of castables" is a CEN-adopted ISO standard that defines laboratory methods to measure the consistency of dense and insulating castables. The standard specifies test procedures to determine the liquid (water) addition required to prepare reproducible test pieces (for subsequent testing in ISO 1927-5). It applies to dense regular castables, dense deflocculated castables and insulating castables.

Key topics and technical requirements

Purpose: Establish the correct water content and working consistency to avoid strength loss, segregation or voids in castable mixes.

Test methods covered:

Manual/low-intensity mixing and assessment for insulating castables (rodding/tamping application).
Tap flow table method (measures spread/slump after specified tapping).
Cone vibration (for dense vibrating castables).
Procedures for self-flowing castables.

Apparatus and moulds: Specified mixer and vibrating table requirements; two truncated cone moulds (100 mm base / 70 mm top; heights 50 mm and 80 mm); tap flow table (cam lift ~8 mm); balances, callipers, stopwatch, thermometer and metal bowl.

Controlled factors: Wet mixing time, batch size and mixer pan loading (50–75 % by volume), temperatures (water, mix and ambient 18–22 °C for consistency tests), and water quality.

Measurement & reporting: Consistency measured as slump/flow values (millimetres) and water addition expressed as litres per 100 kg dry castable (l/100 kg). Working time can be assessed by repeating flow measurements at intervals.

Traceability: References ISO 1927-1 (classification) and ISO 1927-5 (preparation/treatment of test pieces).

Applications and users

Quality control laboratories: Verify batch-to-batch consistency and set standard water additions for routine production.

Refractory manufacturers and R&D teams: Develop and optimize castable formulations (regular, deflocculated, insulating and self-flowing types).

Materials engineers and specifiers: Ensure reproducible physical properties (strength, density, shrinkage) by controlling water content.

Installers and contractors: Select appropriate application method (rodding, tamping, vibration or pouring) based on measured consistency and working time.

Related standards

ISO 1927-1 - Introduction and classification of monolithic refractories

ISO 1927-5:2012 - Preparation and treatment of test pieces (directly linked to EN ISO 1927-4)

Supersedes: EN 1402-4:2003 (previous European standard)

By following EN ISO 1927-4:2012, stakeholders in the refractory industry can achieve consistent castable preparation, improve product reliability, and support compliant testing and quality assurance workflows.

SIST EN ISO 1927-4:2013 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 1927-4:2012

Monolithic (unshaped) refractory products — Part 4: Determination of consistency of castables

ISO 1927-5:2012

Monolithic (unshaped) refractory products — Part 5: Preparation and treatment of test pieces

SIST EN ISO 1927-5:2013

Unshaped refractory materials - Part 5: Preparation and treatment of test pieces (ISO 1927-5:2012)

SIST EN ISO 1927-1:2012

Unshaped (monolithic) refractory products - Part 1: Introduction and classification (ISO 1927-1:2012)