Tin pest related problems such as tin whiskers. At 13.2 °C (about 56 °F) and below, pure tin transforms from the silvery, ductile metallic allotrope of β-form "white tin" to the brittle, nonmetallic, α-form "grey tin" with a diamond cubic structure. The transformation is slow to initiate due to a high activation energy but the presence of germanium (or crystal structures of similar form and size) or very low temperatures of roughly −30 °C aids the initiation. There is also a large volume increase of about 27% associated with the phase change to the nonmetallic low temperature allotrope. This frequently makes tin
15th Anniversary Best Live History DVD Book not a standard DVD, it did not chart on Oricon and was given the ISBN of 978-4800239969. Instead, the DVD book ranked #1 on the Rakuten Books Weekly Ranking in the pop/rock division. The DVD book was available in bookstores, convenience stores and EC sites nationwide. While being released a year prior to her "15th Anniversary LIVE The Artist" DVD, both had their cover art taken at the same times, with Koda Kumi on the same set in the same ensemble, with only slightly different poses. The art direction was very similar to that of her twelfth studio album, "Walk