air ion counter
air ion counter, Total:2 items.
The international standard classification for "air ion counter" includes: .
The Chinese standard classification for "air ion counter" includes: .
Gosstandart of Russia
- GOST R 8.844-2019 State system for ensuring the uniformity of measurements. Aspiration light air ion counters. Verification procedure
- GOST R 8.844-2013 State system for ensuring the uniformity of measurements. Aspiration light air ion counters. Verification procedure
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