ISO 29470-2020 PDF

Full title and description

ISO 29470:2020 — Thermal insulating products for building applications — Determination of the apparent density. This International Standard specifies equipment, specimen preparation and procedures for determining apparent overall density and apparent core density of thermal insulating products and test specimens under reference conditions; it can also be applied to individual layers of multi‑layered products.

Abstract

This document defines the test method and required apparatus to measure the apparent density of full-size thermal insulating products and extracted test specimens, including guidance on specimen selection and reference conditions for measurement. It is intended as a standardized routine for manufacturers, testing laboratories and conformity assessment bodies.

General information

• Status: Published (current/confirmed).
• Publication date: June 2020 (Edition 2, published 2020-06).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 91.100.60 (Thermal and sound insulating materials).
• Edition / version: Edition 2 (2020).
• Number of pages: 4 (ISO PDF).

Scope

Specifies procedures and equipment for determining apparent overall density and apparent core density of thermal insulating products for building applications under specified reference conditions. Applicable to full-size products and test specimens and can be applied to individual layers of multi‑layered products; intended for use where apparent density is a relevant characteristic for performance, classification or compliance.

Key topics and requirements

• Definitions of apparent overall density and apparent core density and reference conditions for measurement.
• Required test apparatus (balances, calipers, fixtures) and calibration/accuracy considerations.
• Specimen selection, preparation and conditioning prior to measurement.
• Measurement procedures for full-size products and extracted specimens, including treatment of multi-layer products.
• Reporting requirements and calculation of apparent densities.

Typical use and users

Used by manufacturers of thermal insulation (mineral wool, foam boards, cellular materials, multi-layer assemblies), independent testing and calibration laboratories, certification bodies, product assessment teams and building material specifiers to determine, verify and report apparent density for product classification, performance assessment and quality control. National standards bodies and conformity assessment organizations adopt or reference the method for regulatory and marketplace consistency.

Related standards

ISO 29470:2020 replaces ISO 29470:2008 (withdrawn) and is commonly published as EN/BS-adopted texts (e.g., BS EN ISO 29470:2020). Related test and material standards for insulating products and building materials include other ISO and EN methods addressing thermal properties, dimensional characteristics and moisture/vapour properties that are used alongside density measurements in product assessment.

Keywords

apparent density; density measurement; thermal insulating products; insulation testing; specimen preparation; building materials; ISO 29470; apparent core density.

FAQ

Q: What is this standard?

A: ISO 29470:2020 is an International Standard that specifies the method for determining the apparent overall density and apparent core density of thermal insulating products for building applications.

Q: What does it cover?

A: It covers required equipment, specimen selection and conditioning, measurement procedures for full-size products and specimens, and reporting/calculation of apparent densities under defined reference conditions.

Q: Who typically uses it?

A: Manufacturers, testing laboratories, certification bodies, product assessors, standards organizations and building material specifiers use this method for quality control, product classification and compliance testing.

Q: Is it current or superseded?

A: Current — ISO 29470:2020 is the active edition (Edition 2, published June 2020) and it replaced the 2008 edition. National adoptions (EN/BS/SS etc.) exist.

Q: Is it part of a series?

A: It is part of the body of ISO standards for thermal and sound insulating materials (ICS 91.100.60) and is typically used alongside other ISO/EN test standards for insulation properties, but it is a single-method standard rather than a numbered series.

Q: What are the key keywords?

A: Apparent density, core density, insulation testing, thermal insulating products, specimen preparation, reference conditions, ISO 29470.