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Conform to:
GB/T 5169.10-2006 and IEC60695-2-10:2013
Silver Foil purity: 99.9%
Thickness:0.06mm
A one-point verification of the temperature of the glow-wire can be performed using a foil of
silver with a purity of at least 99,8 %, approximately 2 mm2 in area and approximately
0,06 mm thick, placed upon the upper surface of the tip of the glow-wire. The glow-wire shall
be initially set at a temperature slightly lower than the melting point of the foil and allowed to
stabilize. The glow-wire temperature is then increased at a slow heating rate so that the
melting point may be accurately observed. When the silver starts to melt the thermometer
shall indicate 960 °C ± 10 °C. The glow-wire, while still hot, shall be cleared of all traces of
silver immediately after this verification process to reduce the probability of alloying. In case
of dispute, this verification method using a silver foil shall be used.
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