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BS ISO 21265:2021

BS ISO 21265:2021

$102.76

Building and civil engineering sealants. Assessment of the fungal growth on sealant surfaces

Published By Publication Date Number of Pages
BSI 2021 18
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This document specifies a method for the evaluation of the fungal growth on sealants which are used in joints in building construction.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Apparatus
10 5 Test fungi preparation
5.1 Test fungi
5.2 Stock strains
11 5.3 Solutions and nutritive media
6 Preparation of test specimens
6.1 General
6.2 Preparation and conditioning
12 6.3 Cleaning, labelling and storage of specimens
6.3.1 Cleaning
6.3.2 Labelling and storage
7 Test procedures
7.1 General
13 7.2 Test set-up and inoculation of test specimens
7.2.1 Specimens with or without water immersion
7.2.2 Test with solid medium: filling the petri dishes
7.2.3 Test for without solid-medium (optional)
7.2.4 Arrangement of test specimens
14 7.2.5 Preparation of spore suspension
7.2.6 Harvesting the spores
7.2.7 Washing the spores by centrifugation and preparation of working suspensions
7.2.8 Spore viability check
7.2.9 Inoculation of specimens
7.2.10 Incubation
15 8 Assessments
8.1 Assessment of fungal growth on the specimens by visual examination
8.2 Assessment of inhibition zone
16 8.3 Record the test result
9 Expression of results
10 Test report

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BS ISO 21265:2021
$102.76