IEC has advised that from early August 2009, it will be possible to order more than 8,000 replaced or withdrawn IEC Publications directly from the IEC Webstore.
This should particularly useful when prior editions of Ex standards are needed for testing and certification of Ex products. The IECEx System allows products to be certified to current and one prior edition of standards.
See http://www.iec.ch/online_news/etech/arch_2009/etech_0709/store_1.htm