| 
                                            Appearance
                                         | 
                                            White to Off-White or Pale Yellow Crystals or Crystalline Powder and/or Chunks
                                         | 
		
			| 
                                            Assay                                                                                               
                                         | 
                                            99.5 - 100.2%
                                         | 
		
			| 
                                            Insoluble matter in water
                                         | 
                                            Passes test
                                         | 
		
			| 
                                            Sulphated ash
                                         | 
                                            Max 0.05%
                                         | 
		
			| 
                                            Chloride & bromide (as Cl)
                                         | 
                                            Max 0.01%
                                         | 
		
			| 
                                            Iodide (I)
                                         | 
                                            Max 0.0005%
                                         | 
		
			| 
                                            Nitrogen compounds (as N)
                                         | 
                                            Max 0.005%
                                         | 
		
			| 
                                            Sulphate (SO4)
                                         | 
                                            Max 0.02%
                                         | 
		
			| 
                                            Copper (Cu)
                                         | 
                                            Max 0.001%
                                         | 
		
			| 
                                            Iron (Fe)
                                         | 
                                            Max 0.001%
                                         | 
		
			| 
                                            Lead (Pb)
                                         | 
                                            Max 0.001%
                                         |