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                            Q: Please elaborate what is the difference between the In-Spec UV Standard #1 through #8, #20, and #30.  I am trying to determine if these will meet our needs.



Thanks you.
                          		
                        

                        

                          
                            
                              A: 
                            
                            The difference in the various In-Spec Standards is the concentration level of the solution.  As the value increases the absorbance values increase.  A Selection Guide is available in the Downloads section of the GFS Chemicals website or you may visit www.in-spec.com for more information.