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BS EN 15651-1:2012 pdf free

BS EN 15651-1:2012 pdf free.Sealants for non-structural use in joints in buildings and pedestrian walkways Part 1: Sealants for facade elements.
4 Requirements
4.1 Identification requirements and test methods
4.1.1 Short description of the sealant
The short description of the non-structural sealant for facade elements shall include brand name, type (general chemical family), opaque or translucent, waterborne or solvent based or solvent free, reactive or nonreactive, and one or multi-component (e.g. waterborne acrylic opaque and one component, etc.).
The primer shall be stated for the substrate concerned, if relevant (name, chemical type, etc.).
4.1.2 Thermogravimetric test
The test shall be carried out in accordance with EN ISO 11358 on the uncured or wet sealant, between 35 °C and 900 °C, temperature slope 10 °Clmin, non-oxidative condition (e.g. nitrogen). A single sample shall be used for this test. A single specimen may be tested and there shall be no significant difference between the reference curve and derivative (profile).
In the case of a multi-component sealant, each component shall be evaluated (if relevant).
4.1.3 Specific gravity
The determination of the specific gravity shall be in accordance with EN ISO 1183-1:2004, on the uncured or wet sealant, using Method A or Method B, depending on the type of sealant under test. The testing temperature shall be (23 ± 2) °C. At least three samples shall be tested. The method used and the mean value, recorded to two decimal places, shall be declared. The tolerance of the declared values shall be within
± 5 %.
In the case of a multi-component sealant, each component shall be evaluated.
4.1.4 Indentation hardness (Shore hardness)
The determination of the indentation hardness shall be in accordance with EN ISO 868. The test shall be performed on the cured or dried sealant.
The exact conditions of test shall be defined by the manufacturer (i.e. thickness, cure/drying times and temperature and relative humidity, specific Shore type (A, 0…), test time, temperature, etc.).
At least three samples shall be tested and five measurements taken per sample. The mean value and tolerances of all measurements, recorded to the nearest unit, shall be declared.
4.2 Conditioning, test procedure and substrates
When determining the classification of a facade sealant according to the requirements of this standard, the same conditioning procedure shall be used in all relevant test methods (Method A or Method B conditioning shall be used for all relevant tests). For each test method, three test specimens for each substrate shall be tested. The same batch of sealant (and primer, if used) shall be used in all tests. The same substrates (material and surface finish) shall be used in all tests.
The specific test conditions shall be in accordance with Table 1.BS EN 15651-1 pdf free download.

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