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A Leak‐Proof Sampling Port in Gas Analyses Studies
Author(s) -
Smid A. E.,
Beauchamp E. G.
Publication year - 1974
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1974.03615995003800060041x
Subject(s) - silicone rubber , sealant , leak , liter , sampling (signal processing) , natural rubber , leakage (economics) , surgery , chromatography , chemistry , medicine , materials science , environmental science , composite material , engineering , detector , electrical engineering , environmental engineering , economics , macroeconomics
Unmodified rubber serum caps frequently used as sampling ports in gas analysis studies, failed to reseal after being punctured. Mean N 2 leakage through puncture holes increased from 92 to 5,200 µliters/liter after 24 hours with one puncture and to 12,000 µliters/liter after an additional 24 hours with two puncture holes. Leak‐proof serum caps were devised by sealing silicone rubber septa into them with silicone rubber sealant.