组合 1 吸附采样管 HJ 734-2014 固定污染源废气 挥发性有机物

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HJ 734-2014 固定污染源废气 挥发性有机物
HJ 734-2014 固定污染源废气 挥发性有机物  详细信息：

1 适用范围

本标准规定了固定污染源废气中24种挥发性有机物测定的固相吸附-热脱附/气相色谱-质谱法。

本标准适用于固定污染源废气中24种挥发性有机物的测定，24种挥发性有机物包括：丙酮、异丙醇、正己烷、乙酸乙酯、苯、六甲基二硅氧烷、3-戊酮、正庚烷、甲苯、环戊酮、乳酸乙酯、乙酸丁酯、丙二醇单甲醚乙酸酯、乙苯、对/间二甲苯、2-庚酮、苯乙烯、邻二甲苯、苯甲醚、苯甲醛、1-癸烯、2-壬酮、1-十二烯。其他挥发性有机物经过验证后也可使用本方法。

当采样体积为300 ml时，本标准的方法检出限为0.001~0.01 mg/m³，测定下限为0.004~0.04 mg/m³。详见附录A。

C.2.1 组合 1 吸附采样管
适用于 C6～C20 范围内的化合物，在环境温度的任何湿度下采样体积可达 2 L，对于
C7 以上的化合物采样体积可扩大到 5 L。老化温度 330℃，老化流量 100 ml/min。具相同
功能国产组合吸附采样管：内装 GDX502 和 GDX101 或 GDX201，填充长度分别为 30 mm 和 20 mm，热解吸温度 220℃，老化温度 240℃，自行填装时可选用。

5.7 吸附管：不锈钢材质，内径 5 mm。
组合 1 吸附管，内装 Tenax GR、Carbopack B，长度分别为 30、25 mm。


HJ 734-2014 固定污染源废气 挥发性有机物   测试谱图：



HJ 734-2014 Waste gas from stationary pollution sources Volatile organic compounds
HJ 734-2014 Waste gas from stationary pollution sources - Volatile organic compounds Details:

1 Scope of application

This standard specifies the solid-phase adsorption-thermal desorption/gas chromatography-mass spectrometry method for the determination of 24 volatile organic compounds in waste gas from stationary pollution sources.

This standard is applicable to the determination of 24 kinds of volatile organic compounds in waste gas from stationary pollution sources. The 24 kinds of volatile organic compounds include: acetone, isopropanol, n-hexane, ethyl acetate, benzene, hexamethyldisiloxane, 3-pentanone , n-heptane, toluene, cyclopentanone, ethyl lactate, butyl acetate, propylene glycol monomethyl ether acetate, ethylbenzene, p/m-xylene, 2-heptanone, styrene, o-xylene, benzyl Ether, benzaldehyde, 1-decene, 2-nonanone, 1-dodecene. Other volatile organic compounds can also use this method after verification.

When the sampling volume is 300 ml, the detection limit of the method of this standard is 0.001~0.01 mg/m3, and the lower limit of determination is 0.004~0.04 mg/m3. See Appendix A for details.


C.2.1 Combination 1 adsorption sampling tube
Suitable for compounds in the C6 to C20 range, sampling volumes up to 2 L at any humidity at ambient temperature, for
The sample volume for compounds above C7 can be expanded to 5 L. The aging temperature is 330℃, and the aging flow rate is 100 ml/min. have the same
Function Domestic combined adsorption sampling tube: GDX502 and GDX101 or GDX201 are built-in, the filling length is 30 mm and 20 mm respectively, the thermal desorption temperature is 220°C, and the aging temperature is 240°C, which can be used for self-filling.

5.7 Adsorption tube: stainless steel, inner diameter 5 mm.
Combination 1 adsorption tube with Tenax GR and Carbopack B inside, lengths of 30 and 25 mm, respectively.


HJ 734-2014 Waste gas from stationary pollution sources - Volatile organic compounds Test spectrum: