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                                        Water 
                                          750.0 ml  Elon 
                                          7.5 g  Sodium 
                                          Sulphite (annhy.) 100.0 g  Sodium 
                                          Bisulphite 15.0 g  Water 
                                          to make 1.0 litre  |   
                                    | Development times for full strength stock 
                                      at 20C: TMX - 100 - 5.5min
 TMY- 400 - 16.5min.
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