Mark D, Vincent J H, Gibson H, Lynch G
Am Ind Hyg Assoc J. 1985 Mar;46(3):127-33. doi: 10.1080/15298668591394536.
This paper describes the development and laboratory testing of a new static dust sampler for airborne total dust in workplaces. Particular attention is paid to designing the sampling head and entry consistent with the concept of inspirability which in turn defines a biologically-relevant aspiration efficiency. The sampling head has a small cylindrical body and a transverse entry slot with thin protruding lips forming an integral part of a weighable capsule containing a 37 mm filter which collects all of the sampled dust (without introducing errors due to external particle blow-off or internal wall losses). A battery-powered sampling pump provides both air suction at 3 L/min and rigid mounting for the sampling head. The sampling head is rotated continuously through 360 degrees at approximately 1.5 rpm by a simple electric drive, connected to the stationary pump through a rotating seal. Wind tunnel testing of the instrument showed it to display an entry efficiency very close to the inspirability curve of Vincent and Armbruster (now recommended by the ACGIH Technical Committee on Air Sampling Procedures for defining inspirable particulate matter (IPM] for particles of aerodynamic diameter up to 90 micron and for windspeeds in the range of one to three m/sec.
本文介绍了一种用于工作场所空气中总粉尘的新型静态粉尘采样器的开发和实验室测试。特别关注采样头和入口的设计，使其符合可吸入性概念，这反过来又定义了与生物相关的抽吸效率。采样头有一个小圆柱体和一个横向入口槽，薄的突出边缘是一个可称重胶囊的组成部分，该胶囊包含一个37毫米的过滤器，用于收集所有采样粉尘（不会因外部颗粒吹落或内壁损失而引入误差）。一个电池供电的采样泵既提供3升/分钟的空气抽吸，又为采样头提供刚性安装。采样头通过一个简单的电动驱动装置以大约1.5转/分钟的速度连续旋转360度，该驱动装置通过旋转密封与固定泵相连。该仪器的风洞测试表明，其入口效率非常接近文森特和安布勒斯特的可吸入性曲线（现在被美国政府工业卫生学家会议空气采样程序技术委员会推荐，用于定义空气动力学直径达90微米的可吸入颗粒物（IPM）以及风速在1至3米/秒范围内的情况）。
