成 分 Component  | 标准值(µg/ml) Certified value  | 不确定度(µg/ml) Uncertainty  | 
苯(Benzene)  | 101.2  | ± 4.0  | 
甲苯 (Toluene)  | 88.2  | ± 4.2  | 
乙苯 (Ethylbenzene)  | 58.4  | ± 3.4  | 
对二甲苯 (p-Xylene)  | 58.9  | ± 3.8  | 
间二甲苯 (m-Xylene)  | 58.4  | ± 4.0  | 
邻二甲苯 (o-Xylene)  | 58.6  | ± 3.6  | 
			成 分 Component  | 标准值(µg/ml) Certified value  | 不确定度(µg/ml) Uncertainty  | 
苯(Benzene)  | 101.2  | ± 4.0  | 
甲苯 (Toluene)  | 88.2  | ± 4.2  | 
乙苯 (Ethylbenzene)  | 58.4  | ± 3.4  | 
对二甲苯 (p-Xylene)  | 58.9  | ± 3.8  | 
间二甲苯 (m-Xylene)  | 58.4  | ± 4.0  | 
邻二甲苯 (o-Xylene)  | 58.6  | ± 3.6  |