??
        
    ??
??? ???? > ??

???: HF
???: 20.01
????: GB 7744-2008
| 
			 ??  | 
			
			 ??  | 
		||||||
| 
			 I?  | 
			
			 II?  | 
		||||||
| 
			 HF-I-40  | 
			
			 HF-I-55  | 
			
			 HF-I-70  | 
			
			 HF-II-30  | 
			
			 HF-II-40  | 
			
			 HF-II-50  | 
			
			 HF-II-55  | 
		|
| 
			 ?????(HF)≥%  | 
			
			 40.0  | 
			
			 55.0  | 
			
			 70.0  | 
			
			 30.0  | 
			
			 40.0  | 
			
			 50.0  | 
			
			 55.0  | 
		
| 
			 ?????(H2SiF6) ≤%  | 
			
			 0.05  | 
			
			 2.5  | 
			
			 5.0  | 
			
			 8.0  | 
			
			 10.0  | 
		||
| 
			 ????  | 
			
			 0.05  | 
			
			 0.08  | 
			
			 0.08  | 
			
			 1.0  | 
			
			 1.0  | 
			
			 2.0  | 
			
			 2.0  | 
		
| 
			 (H2SO4) ≤%  | 
		|||||||
| 
			 ?? ??? ≤%  | 
			
			 0.05  | 
			
			 —  | 
		|||||

??: ????? ??, ???? ???? ??, ??, ??? ??? ??.
??: ??, ????, ??, ?? ? ???? ? ??? ?? ?.
??: ??? ? ?? ???? ???? ?.
??: 1?? ?? ?? ????? ?? ???.
??: ????? ???? ?? ??? PP??? ??? ??? ??? ??? ??? ??? ?? ????.

            
Mobile