产品名称：	GDX-502 印刷行业废气排放非甲烷总烃测定甲烷柱
产品型号：	GDX-502
品牌：	1941
产品数量：
产品单价：	面议
日期:	2023-07-11

GDX-502 印刷行业废气排放非甲烷总烃测定甲烷柱的详细资料

印刷行业废气排放非甲烷总烃测定甲烷柱
印刷行业废气排放非甲烷总烃测定甲烷柱 详细信息：

固定相：高分子小球

GDX-502，2m*3mm，2m*4mm，2m*1/8，60-80目

甲烷柱

总烃柱

2m*3mm，2m*4mm，2m*1/8，硅烷化玻璃微球

印刷行业排放大量挥发性有机物,对环境影响不容忽视.目前印刷行业挥发性有机物排放标准尚未颁布实施,各地方标准对VOCs排放水平的监测评价指标存在明显差异,主要包括总挥发性有机物(TVOCs)与非甲烷总烃(NMHCs)两类.
滕州市浩瀚色谱仪器技术服务有限公司，通过对TVOCs与NMHCs的定义、分析方法进行比较,并通过现场采样和实验测试详细分析了印刷行业废气排放中NMHCs与TVOCs的数值差异.研究结果显示,同等条件下,印刷行业典型挥发性有机物实验测试和现场采样测试中,TVOCs的检测数值均大于NMHCs,可能的原因为印刷行业排放的挥发性有机物种类特异性、两者计算时选择的参比物不同以及检测器灵敏度不同等.基于以上研究结果,从长远实施有效监管角度来讲,印刷行业标准采用TVOCs作为控制指标相对科学合理.

印刷行业废气排放非甲烷总烃测定甲烷柱 图片：



Printing industry exhaust gas emission non-methane total hydrocarbon determination methane column
Printing industry exhaust emissions non-methane total hydrocarbons determination of methane column Details:

Stationary phase: polymer pellet
GDX-502, 2m*3mm, 2m*4mm, 2m*1/8, 60-80 mesh
Methane column

Total hydrocarbon column
2m*3mm, 2m*4mm, 2m*1/8, silanized glass microspheres


The printing industry emits a large amount of volatile organic compounds, and the environmental impact cannot be ignored. At present, the national printing industry volatile organic matter emission standards have not been promulgated and implemented, and there are significant differences in the monitoring and evaluation indicators of VOCs emission levels by various local standards, including total volatile organic compounds (TVOCs). ) and non-methane total hydrocarbons (NMHCs) two categories.
Tengzhou Haohao Chromatography Instrument Technology Service Co., Ltd. compares the definition and analysis methods of TVOCs and NMHCs, and analyzes the numerical difference between NMHCs and TVOCs in the exhaust industry of printing industry through on-site sampling and experimental tests. The research results show that Under the conditions, in the typical volatile organic compounds test and on-site sampling test in the printing industry, the detection values of TVOCs are larger than NMHCs. The possible reasons are the specificity of volatile organic compounds emitted by the printing industry, and the reference materials selected in the calculation of the two are different. And the sensitivity of the detector is different. based on the above research results, from the perspective of effective supervision in the long run, the printing industry standard adopts TVOCs as the control index is relatively scientific and reasonable.

Determination of methane emissions from non-methane total hydrocarbon emissions from the printing industry