Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968, b2.1-18
Original description
Perforated glazed stoneware molded element
ISO 354 – reverberation chamber· 2 variants
αp per ISO 11654
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| Compare | Value |
|---|---|
| αw0.81 | |
| αw0.08 |
Dimensions: 240 x 240 mm
