EN ISO 8394-2:2017 PDF

Buildings and civil engineering works - Determination of extrudability for sealant - Part 2: Using standardized apparatus (ISO 8394-2:2017)

Title (English):

EN ISO 8394-2:2017

Buildings and civil engineering works - Determination of extrudability for sealant - Part 2: Using standardized apparatus (ISO 8394-2:2017)

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 15
Publication date:: November 22, 2017
Edition:: CEN EN 8394 edition 2 version 1
ICS:: 91.100.50

Document language:

enru

Delivery time:1–7 days

Price:60 €

Description (English):

ISO 8394-2 specifies a method for determining the extrudability of sealants independently of the package in which they are supplied.

Technical details

Technical committee: CEN/TC 349 - Sealants for joints in building construction
SKU: EN ISO 8394-2:2017

Abstract

Overview

EN ISO 8394-2:2017 - Buildings and civil engineering works - Determination of extrudability for sealant - Part 2: Using standardized apparatus - specifies a laboratory method to determine the extrudability of sealants independently of the package in which they are supplied. Endorsed by CEN (as EN ISO 8394-2:2017), the standard defines test conditions, apparatus, conditioning and test procedures to produce comparable extrusion-rate results for single- and multi-component sealants.

Key topics and technical requirements

Scope and principle
- Measures extrudability by filling a standardized apparatus and extruding sealant under defined conditions; mass (and volume) of extrudate is recorded.
- Comparison of results requires identical test conditions; any deviations must be reported.
Apparatus and instruments
- Regulated enclosure at specified temperatures: (5 ± 2) °C, (23 ± 2) °C, (35 ± 2) °C or an agreed temperature.
- Pneumatic standardized apparatus with cylinder volumes of 250 ml or 400 ml and orifice diameters 2–10 mm (as agreed).
- Compressed air supply (up to 700 kPa); typical test pressure specified as (300 ± 10) kPa unless otherwise agreed.
- Timing and weighing: stopwatch (0.1 s) and balance (0.1 g).
Conditioning and sampling
- Sealant and cylinder conditioned in the regulated enclosure for a minimum of 12 hours (default 23 ± 2 °C).
- Single-component: fill cylinder avoiding air bubbles.
- Multi-component: mix per manufacturer instructions and test at three pot-life times - quarter, mid, and third-quarter of pot life.
Test procedure
- Remove air from orifice, then extrude for a defined time (default 30 s for single-component tests); weigh extruded mass immediately after extrusion.
- Multi-component sealants: perform three extrusions at the defined pot-life times; for robustness, the protocol calls for multiple apparatus and repeats (nine tests total when specified).
Expression of results
- Results expressed as extrusion rate (g/min) and optionally volume per minute; standard provides formulae and rounding rules.

Applications and users

Who uses it: sealant manufacturers, independent testing laboratories, quality control teams, construction specifiers, certification bodies, and procurement specialists.
Practical uses:
- Compare pumpability and workability of sealant formulations independently of cartridge or sausage packaging.
- Support product development (rheology adjustments) and quality control sampling.
- Provide objective data for technical datasheets, performance claims, and compliance in building and civil engineering projects.

Related standards

ISO 6927 (Sealants - Vocabulary) is normative and referenced for terms/definitions.
EN ISO 8394 series - Part 2 is one part of this series addressing extrudability; users should consult other parts for complementary test methods.

Keywords: EN ISO 8394-2:2017, extrudability, sealant testing, standardized apparatus, sealant extrusion rate, buildings and civil engineering, sealant quality control.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and technical requirements

Scope and principle
- Measures extrudability by filling a standardized apparatus and extruding sealant under defined conditions; mass (and volume) of extrudate is recorded.
- Comparison of results requires identical test conditions; any deviations must be reported.
Apparatus and instruments
- Regulated enclosure at specified temperatures: (5 ± 2) °C, (23 ± 2) °C, (35 ± 2) °C or an agreed temperature.
- Pneumatic standardized apparatus with cylinder volumes of 250 ml or 400 ml and orifice diameters 2–10 mm (as agreed).
- Compressed air supply (up to 700 kPa); typical test pressure specified as (300 ± 10) kPa unless otherwise agreed.
- Timing and weighing: stopwatch (0.1 s) and balance (0.1 g).
Conditioning and sampling
- Sealant and cylinder conditioned in the regulated enclosure for a minimum of 12 hours (default 23 ± 2 °C).
- Single-component: fill cylinder avoiding air bubbles.
- Multi-component: mix per manufacturer instructions and test at three pot-life times - quarter, mid, and third-quarter of pot life.
Test procedure
- Remove air from orifice, then extrude for a defined time (default 30 s for single-component tests); weigh extruded mass immediately after extrusion.
- Multi-component sealants: perform three extrusions at the defined pot-life times; for robustness, the protocol calls for multiple apparatus and repeats (nine tests total when specified).
Expression of results
- Results expressed as extrusion rate (g/min) and optionally volume per minute; standard provides formulae and rounding rules.

Applications and users

Who uses it: sealant manufacturers, independent testing laboratories, quality control teams, construction specifiers, certification bodies, and procurement specialists.
Practical uses:
- Compare pumpability and workability of sealant formulations independently of cartridge or sausage packaging.
- Support product development (rheology adjustments) and quality control sampling.
- Provide objective data for technical datasheets, performance claims, and compliance in building and civil engineering projects.

Related standards

ISO 6927 (Sealants - Vocabulary) is normative and referenced for terms/definitions.
EN ISO 8394 series - Part 2 is one part of this series addressing extrudability; users should consult other parts for complementary test methods.

Keywords: EN ISO 8394-2:2017, extrudability, sealant testing, standardized apparatus, sealant extrusion rate, buildings and civil engineering, sealant quality control.

EN ISO 8394-2:2017 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Related standards

Buildings and civil engineering works — Determination of extrudability of sealants — Part 2: Using standardiz…

Buildings and civil engineering sealants - Vocabulary (ISO 6927:2021)

Buildings and civil engineering works - Determination of extrudability for sealant - Part 2: Using standardiz…