NP 2137-1986
air quality. Measurement of black smoke levels and sulfur compounds in ambient air, equipment for collecting samples

Standard No.

NP 2137-1986

Release Date

1986

Published By

PT-IPQ

Latest

NP 2137-1986

NP 2137-1986 history

• 1986 NP 2137-1986 air quality. Measurement of black smoke levels and sulfur compounds in ambient air, equipment for collecting samples