产品册

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.

NIOSH7504纯银微孔滤膜过滤X射线衍射法测定空气中的钒的氧化物

The working range is 0.2 to 4 mg/m 3 (as V) for a 500-L air sample. The method will determine V 2 O 5 , V 2 O 3 , and NH 4 VO 3 separately on the same sample.