| Standard ID | GB/T 11890-1989 (GB/T11890-1989) |
| Description (Translated English) | Water quality. Determination of benzene and its analogies. Gas chromatographic method |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | Z16 |
| Classification of International Standard | 13.060.01 |
| Word Count Estimation | 8,869 |
| Date of Issue | 1989/11/3 |
| Date of Implementation | 1990/7/1 |
| Drafting Organization | Environmental Protection, Ministry of Chemical Industry |
| Proposing organization | State Environmental Protection Bureau Standards Office |
| Issuing agency(ies) | State Bureau of Technical Supervision |
| Summary | This standard applies to industrial wastewater and surface water, benzene, toluene, ethylbenzene, xylene, m-xylene, o-xylene, cumene and styrene eight kinds of BTEX determination. The standard choice of 3% organic bentonite/carrier body 101 +2. 5% nonyl phthalate ester/101 Tam body, mixing weight ratio 35: 65 tandem column, the sample can be detected while the above eight kinds of BTEX. ����Һ������ɫ��, ��ͼ��Ũ��Ϊ0. 005mg/L, �ⶨ��ΧΪ0. 005��0. 1mg/L; ����̼��ȡ������ɫ��, ��ͼ��Ũ��Ϊ0. 05mg/L, �ⶨ��ΧΪ0. 05��12mg/L. |