In the event of the enemy using chemical or biological weapons, the signal "CONTAMINATION ALARM" is announced: - With sirens- A sound lasting 10 seconds with 15 second breaks for 3 minutes; - The phrase transmitted by radio and television: "I ANNOUNCE A CONTAMINATION ALARM FOR..."
![In the event of the enemy using chemical or biological weapons, the signal "CONTAMINATION...](data/photos/l/1/1562-1162427537-a8daa26a8eb9a227941475be0f065c0c.png "In the event of the enemy using chemical or biological weapons, the signal "CONTAMINATION...")
