令人担忧的读数。

Occup Health Saf. 1994 Oct;63(10):59-62, 64, 66-7.

The confined space standard has spawned a proliferation of confined space instruments. Careful reading of published specifications shows that some instruments are not suited for confined space testing. Therefore, it is important to read and understand those boring, mind-numbing specifications before making an instrument purchase.

受限空间标准催生了大量受限空间检测仪器。仔细研读已发布的规格说明会发现，有些仪器并不适用于受限空间检测。因此，在购买仪器之前，阅读并理解那些枯燥乏味、令人头疼的规格说明非常重要。