Sprayed Limpet asbestos, 3/4 inch, 1 coat, unpainted on metal lath

PTB reference data

Original description

Material properties

Thickness: 3/4 inch

Surface: unpainted

Mounting: on metal lath

ISO 354 – reverberation chamber

αw

0.80

αp nach ISO 11654

125 Hz

0.40

250 Hz

0.90

500 Hz

0.90

1000 Hz

0.90

2000 Hz

0.90

4000 Hz

0.80

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Method (354): Measured