No, chemical tests can detect mustard gas much faster than human senses. https://www.cdc.gov/niosh/ershdb/emergencyresponsecard_29750008.html https://www.cdc.g

No, chemical tests can detect mustard gas much faster than human senses. https://www.cdc.gov/niosh/ershdb/emergencyresponsecard_29750008.html https://www.cdc.gov/niosh/ershdb/emergencyresponsecard_29750... Sulfur mustard damages cells within minutes of contact; however, the onset of pain and other health effects is delayed until hours after exposure.