In 2005 Member States of the European Union will introduce legislation that will require assessment of an individual’s exposure to vibration. This is already producing a growing demand for human vibration measurement and there are an increasing number of “simple” vibration instruments available on the market. Since 1990, ISO 8041 has provided a base document for human response to vibration instrument manufacturers. Most current instruments claim conformance with this standard. However, concerns that ISO 8041 was inadequate for measurement of hand-arm vibration on percussive tools, and a substantial revision of ISO 2631-1 meant that a revision of ISO 8041 was necessary. The revision of ISO 8041 is being prepared in ISO (TC108/SC3), and was issued as a Draft International Standard in 2003. The revision of ISO 8041 introduces a more thorough and more demanding specification for vibration instruments and defines a full range of pattern evaluation and verification tests. This paper reviews the changes introduced by the revision of ISO 8041, a standard that we are likely to see published in Spring 2005.