8.1 All systems that are not an epoxy-based system
                           applied according to table 1 of
                           this Standard are defined as an alternative system.
                           
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           8.2 This Standard is based on recognized and commonly
                           used coating systems. It is not meant to exclude other, alternative,
                           systems with proven equivalent performance, for example non-epoxy-based
                           systems.
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           8.3 Acceptance of alternative systems shall be
                           subject to documented evidence that they ensure a corrosion prevention
                           performance at least equivalent to that indicated in this Standard,
                           by either:
                        
                        
                        
                        
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                                 .1 testing according to this standard; or
                              
                              
                              
                            
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                                 .2 five years' field exposure with documentary
                                 evidence of continuous trading with crude oil cargoes.footnote The coating condition is not less than
                                 "GOOD" after five years.