No. 84 - Cellulose Thimbles: Suitable for Soxhlet type extractions or dust sampling.
第84号-纤维素套环：对于索氏类型拔牙或粉尘采样合适。
But the maximum concentration of propylene during the sampling moment at the polypropylene dust sampling window exceeded 11 times relative standards.
但外操工在聚丙烯粉尘取样口取样瞬间工人操作位空气中丙烯最高浓度超过有关标准的职业接触限值11倍。
Quality control methods on dust sampling and weighting process of filtering cartridge are pointed out based on dust monitoring practices and comparative researches.
通过对烟尘测试的实践和对比研究，提出了烟尘测试中滤简的称量过程和烟尘采样过程的质量控制和方法。
The monitoring methods of detecting waste gas pollution are introduced. The accurate analysis path of detecting dust by isokinetic sampling method is concluded based on the practical experiments.
介绍了废气污染物监测方法，根据实践经验总结了等速采样法在烟尘测试过程中的准确分析路径。
Relationship between gravimetric and fibre concentrations of airborne asbestos dust has been established by simultaneously sampling with two methods on 15 sites in an asbestos paper mill.
本文用现场平行采样的方法研究石棉造纸行业的各扬尘点粉尘重量浓度与纤维计数浓度间的转换关系。
Dust particle counter, dust particle multi-point inspection system, sampling device, environment comprehensive parameter monitor, FFU central controller, etc.
尘埃粒子计数器，尘埃粒子多点检测系统，浮游菌采样器，环境综合参数监测器，FFU中央控制器等。
Problems such as the high temperature, high dust content and corrosion during the gas analysing, and their solutions are listed to show the importance of gas sampling and pre-treating.
阐述烟气分析过程高温、高粉尘及腐蚀性的困难及解决方法，从而突出采样和预处理的重要意义。
Problems such as the high temperature, high dust content and corrosion during the gas analysing, and their solutions are listed to show the importance of gas sampling and pre-treating.
阐述烟气分析过程高温、高粉尘及腐蚀性的困难及解决方法，从而突出采样和预处理的重要意义。
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