Standard Test Method for Measuring the Yield for Aerosol Foam Sealants

Importancia y uso:

5.1 The yield measurement of aerosol foam sealants is used to indicate the amount of foam sealant that can be obtained from a single container of product.

5.2 The yield does not predict the performance capability of the foam sealant product or its suitability for the intended application.

5.3 Procedure A was developed for use with products that can be volumetrically measured by submersion in water. Procedure B was developed for product that cannot be measured by using a water displacement method.

5.4 Yield is often dependent on the bead size dispensed. Extrapolation of test results using data measured for larger size beads to estimate smaller sized beads has shown inaccuracies. Since yield will be reported based on the diameter of the cured bead (not initial size of wet beads), the operator shall determine the nominal initial bead size required to produce a specific nominal cured bead diameter. This foam characteristic, called “post dispensing contraction” or “post dispensing expansion,” is defined in Terminology C717.

Subcomité:

C24.61

Referida por:

C1620-25, C1852-20R25

Volúmen:

04.07

Número ICS:

91.100.50 (Binders. Sealing materials)

Palabras clave:

aerosol; aerosol foam; air barrier foam sealant; air exfiltration; air infiltration; foam sealant; latex foam sealant; polyurethane foam sealant;