8L 苯系物标准气体

苯系物标准气体，液化石油气，二甲醚，甲缩醛，乙缩醛，乙醇，室内空气，焦炉煤气，炼厂气，天然气，变压器油，多氯联苯，植物油，6号溶剂残留，裂解进样器，消毒剂，甲缩醛，甲酸...

苯系物标准气体
苯系物标准气体 详细信息：

标准气体：
苯系物
容积：4L/8L
铝合金钢瓶
应用：固定污染源废气 苯系物的测定 气袋采样/直接进样-气相色谱法

为贯彻《中华人民共和国环境保护法》，保护生态环境，保障人体健康，提高生态环境管理水平，规范生态环境监测工作，生态环境部决定制定《固定污染源废气 苯系物的测定 气袋采样/直接进样-气相色谱法》国家环境保护标准。

苯系物一般是苯、甲苯、乙苯、对二甲苯、间二甲苯、邻二甲苯、异丙苯、苯乙烯的统称，它是大气环境和许多污染源气体中见的化合物，对人体健康都具有一定的危害作用，是环境的重要污染物。苯广泛地应用在化工生产中，它是制造染料、香料、合成纤维、合成洗涤剂、聚苯乙烯塑料、丁苯橡胶、炸药、农药杀虫剂(如六六六)等的基本原料。它也是制造油基漆、硝基漆等的原料。化工厂超标排放的废水、废气是造成环境中苯污染事故的主要根源。

近年来，我国的空气质量普遍受到污染，苯系物含量的高低能直接表示大气中有机物污染的水平，测定大气中的苯系物，有助于评价大气污染状况。因为本标准的制定也是为了适应和满足质量标准与污染物排放(控制)标准的的污染项目监测要求及环境重点工作涉及的污染物项目监测要求。

本标准规定了测定固定污染源废气中苯系物的气袋采样/直接进样-气相色谱法，适用于固定污染源废气中的苯、甲苯、乙苯、邻二甲苯、间二甲苯、对二甲苯、异丙苯和苯乙烯的测定。当进样体积为 1.0 ml 时，苯、甲苯、乙苯、邻二甲苯、间二甲苯、对二甲苯、异丙苯和苯乙烯方法检出限为 0.2～0.6 mg/m3，测定下限为 0.4～2.4 mg/m3，详见附录 A。

苯系物标准气体 测试谱图：


Benzene series standard gas
Benzene series standard gas Details:

Standard gas:
Benzene series
Volume: 4L/8L
Aluminum alloy cylinder
Application: fixed pollution source waste gas determination of benzene series air bag sampling/direct injection-gas chromatography

In order to implement the "Environmental Protection Law of the People's Republic of China", protect the ecological environment, protect human health, improve the level of ecological environmental management, and standardize ecological environmental monitoring, the Ministry of Ecology and Environment has decided to formulate the "Determination of Fixed Pollution Source Waste Gas Benzene Series Airbag Sampling/Direct Injection-Gas Chromatography" National Environmental Protection Standard.

Benzene compounds are generally collectively referred to as benzene, toluene, ethylbenzene, p-xylene, meta-xylene, o-xylene, cumene, and styrene. It is the most common compound in the atmospheric environment and many pollution source gases, and is good for human health. Both have certain harmful effects and are important pollutants of the environment. Benzene is widely used in chemical production. It is the basic raw material for the manufacture of dyes, fragrances, synthetic fibers, synthetic detergents, polystyrene plastics, styrene butadiene rubber, explosives, pesticides and pesticides (such as BHC). It is also a raw material for manufacturing oil-based paint, nitrocellulose paint, etc. Excessive discharge of waste water and waste gas from chemical plants is the main source of benzene pollution accidents in the environment.


In recent years, the air quality in our country has been generally polluted. The level of benzene series can directly indicate the level of organic pollution in the atmosphere. The determination of benzene series in the atmosphere is helpful to evaluate the situation of air pollution. Because this standard is also formulated to meet and meet the pollution project monitoring requirements of quality standards and pollutant discharge (control) standards and the monitoring requirements of pollutant projects involved in key environmental work.


This standard specifies the air bag sampling/direct injection-gas chromatography method for the determination of benzene series in waste gas from stationary sources. It is suitable for benzene, toluene, ethylbenzene, o-xylene, meta-xylene, and p-xylene in waste gas from stationary sources. , Cumene and Styrene. When the injection volume is 1.0 ml, the detection limit of benzene, toluene, ethylbenzene, o-xylene, m-xylene, p-xylene, cumene and styrene is 0.2～0.6 mg/m3, and the lower limit of determination is 0.4 ~2.4 mg/m3, see Appendix A for details.

Benzene series standard gas test spectrum:

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