The BTS 490 is designed to be used as a sampling head for environmental air monitoring using a card mounted filter paper (Bird & Tole Card Mounted Filters).
It is suitable for sampling flow rates in the range of 10 – 100 litre per minute (depending on supply).The holder can also be incorporated on the Bird & Tole Air Sampling Unit BTS 601 range.
The unit offers the following features:
- An aesthetically pleasing design.
- A hinged cover plate for rapid and positive location of the sampling filter card.
- Ease of handling involving no physical contact with the sample filter ensuring maximum reproducibility.
- Adapters available for use with any suitable piped vacuum supply.
BTS490 - Panel Mounted Filter Holder
BTS490A - Detachable Filter Holder with screwed cap (for front of BTS601)
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