This document describes a method for determining the resistance of cryogenic spill protection (CSP) systems to vapour generated from a cryogenic liquid release where the liquid content is practically zero. It is applicable where CSP systems are installed on carbon steel. Liquid jet release may be formed upon release of Liquified Natural Gas (LNG) from process equipment operating at pressure, e.g., some liquefaction processes utilise 40 - 60 bar operating pressure. However at specific distances from the release point it is expected that the liquid fraction will diminish such that there is practically no effect from liquid cooling in the stream. It should be recognised that it is not practical in this test to cover the whole range of cryogenic process conditions found in real plant conditions; in particular the test does not cover high pressure cryogenic liquid releases that may be found in refrigeration circuits and in LNG streams immediately postliquefaction. Liquid nitrogen (LN2) is used as the cryogenic medium due to the ability to handle the material at the pressures described in this part of the standard safely. ISO 20088-1 covers cryogenic liquid releases which may lead to pool formation for steel work protected by CSP. ISO 20088-3 covers jet exposure conditions where there is predominantly liquid in the stream.