SIST EN ISO 1927-2:2013 PDF

Name: SIST EN ISO 1927-2:2013 — Monolithic (unshaped) refractory products - Part 2: Sampling for testing (ISO 1927-2:2012)
SKU: SIST EN ISO 1927-2:2013
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Monolithic (unshaped) refractory products - Part 2: Sampling for testing (ISO 1927-2:2012)

Название (английский):

SIST EN ISO 1927-2:2013

Monolithic (unshaped) refractory products - Part 2: Sampling for testing (ISO 1927-2:2012)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 18
Дата публикации:: 14 ноября 2013 г.
ICS:: 81.080
Технический комитет:: IKER - Ceramics

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Описание (английский):

ISO 1927-2:2012 gives guidance on the sampling of monolithic (unshaped) refractory materials for the purpose of inspection and testing for quality and general information on the reduction and treatment of samples prior to testing. It covers all materials formulated as monolithic refractory materials.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 1927-2:2012 - Monolithic (unshaped) refractory products - Part 2: Sampling for testing - provides guidance for the representative sampling, reduction and treatment of monolithic refractory materials for inspection and physical testing. The standard applies to all materials formulated as monolithic (unshaped) refractories and is intended to ensure samples reflect batch quality for production control, third‑party certification and acceptance testing.

Key topics and requirements

Sampling scheme and documentation: requires an agreed, documented sampling plan covering batch definition, packaging, sampling locations, timing, responsible parties and criteria for acceptance.

Definitions and sample types: clarifies terms such as batch, consignment, unit package, increment, elementary/package/laboratory/test‑piece increments and sample.

Procurement of batch samples: guidance on selecting unit packages randomly, handling unit packages >35 kg and forming package increments; references ISO 8656‑1 and ISO 5022 for specific schemes.

Minimum elementary increment masses (examples from standard): dependent on maximum grain size - e.g. 10 mm → 500 g, 3 mm → 200 g, 1 mm → 50 g (adjusted for bulk density).

Variation classification: use coefficient of variation (C = 100·σ/µ) to classify batch variability (class 1: 0–5%, class 2: 5–15%, class 3: 15–30%) to determine increment numbers; use class 3 when unknown or >30%.

Size reduction and preparation: describes approved methods for reducing package increments to laboratory increments and preparing test‑piece increments (cast bars, cylinders) while protecting properties to be tested.

Marking, packaging and storage: requirements to preserve sample integrity and traceability.

Sampling report: mandatory documentation of sampling details, conditions and chain of custody.

Practical applications and users

Manufacturers of castables, gunning mixes, ramming mixes, grouts and other monolithic refractories - for factory production control.

Independent testing laboratories - to ensure representative samples for physical and chemical tests.

Quality assurance / QC engineers, procurement managers and installers - for acceptance testing of delivered consignments.

Third‑party certifiers and inspectors - for surveillance sampling and compliance checks.

Related standards

ISO 1927 series (Parts 1, 3–8) - classification, characterization, test methods and treatment of test pieces.

ISO 8656‑1 - sampling scheme for raw materials and unshaped products.

ISO 5022 - sampling and acceptance testing of shaped refractory products.

ISO 10725 - acceptance sampling plans for bulk materials.

EN ISO 1927-2:2012 is essential for reliable refractory materials sampling, ensuring consistency between production control and acceptance testing and protecting test validity through standardized increment definition, reduction and handling.

SIST EN ISO 1927-2:2013 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Practical applications and users

Related standards

Технические детали

ISO 1927-2:2012

Monolithic (unshaped) refractory products — Part 2: Sampling for testing

ISO 8656-1:1988

Refractory products — Sampling of raw materials and unshaped products — Part 1: Sampling scheme

SIST ISO 502:2016

Coal - Determination of caking power - Gray-King coke test

BS EN ISO 1927-8:2012

Monolithic (unshaped) refractory products. Determination of complementary properties.

ISO 10725:2000

Acceptance sampling plans and procedures for the inspection of bulk materials