NIOSH7501纯银微孔滤膜过滤X射线衍射法测定空气中的非晶型硅

2017-12-01 14:54

浏览：100次

资料摘要：

This method is specific for amorphous silica in crystalline (e.g., quartz) matrices in the range 1 to 10 mg/m 3 for a 200-L air sample. Amorphous silica usually contains some crystalline silica [2]. See also discussion of crystalline silica in Chapter R of this volume [3].

相关资料

产品册

Multi Tube Vortex Mixer offers high capacity vortexing up to 2500rpm. The digital vortex mixer can hold 60 x 7 mL blood tubes to 6 x 250 mL flasks.

NIOSH9000纯银微孔滤膜过滤X射线衍射法测定空气中的石棉和温石棉

Antigorite (massive serpentine), Chlorite, Kaolinite, Bementite, and Brushite interfere. X-ray fluorescence and absorption is a problem with some elements; fluorescence can be circumvented with a diffracted beam monochromator, a nd absorption is corrected for in this method.

NIOSH7506纯银微孔滤膜过滤X射线衍射法测定空气中的碳化硼

The working range is 0.2 to 4 mg/m 3 for a 500-L air sample. The method is specific for determining respirable boron carbide among other mine dusts.

NIOSH7505纯银微孔滤膜过滤X射线衍射法测定空气中的硫化铅

The working range is 0.06 to 4 mg/m 3 for a 500-L air sample. The method is specific for lead sulfide among other mine dusts.

产品推荐