Classifications

Flammability classes

The classification of the ignition and burning resistance characteristics of materials other than metal or ceramic:

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HB – Slow burning on a horizontal specimen; burning rate < 76 mm/min for thickness < 3 mm.

Impact classification

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Corrosion resistance

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11.2 Resistance to corrosion (IEC 61914) 

‘Stainless Steel containing at least 16% chromium need not be tested and are assumed to meet the classification for high resistance to corrosion.’