Sensitivity of increased temperature and air humidity for data media and other filing materials. When choosing type of storage equipment for data tapes, "diskettes" or other materials for protection against fire it is essential to know which temperature and humidity is acceptable for the materials. Filing cabinets and data cabinets are classified after certain levels of maximum temperature and relative humidity. In this report these criteria are determined for paper documents, data media and data "diskettes". This report also gives information about how other types of materials, for example video tapes, react to increased temperature and air humidity.