. . . . "A descriptor of the density of a vapour in relation in that of hydrogen, defined as the mass of a certain volume of the given substance divided by the mass of the same volume of hydrogen." . . . "Vapour density" . . . . "Christos Vasileiou" . "2026-01-08T14:40:45.382Z"^^ . . . . . . . . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz1OobdRASd9SftHrLhG905OXjv8DHndvyWzXRJ5EDFPankMSnHZPHK+g2qEeRWdonstt55CLrpTpWsVv9xRtTqPidXHbnWLBXX42iCB+EnZNoKqAVKF5GxkSR38S0uTTq3aeQJbw2kTpx6LMkspmuH95fgAI/lfqPWrxdlI98jIeHQ14UXZpiWmkkvPgC9GVgmwHiG1hB/NCA2fKCOxVodN44OfhAPtkWmPJ40IcGPSalI4HRqgLLI5PabdRk3PiG81cUngmQU1Xk6EapzkRJGenkOlGsC5L4ktEPO6LS9uBMLTMLQDtGtkrcwqg5HmeKv7Ili3vgr3LL8/GaBBOLQIDAQAB" . "gwFy4E/iXBeZeuEplO5QDCd3wMIvRgRZH7bG3mG4juDjNOXOEAu5NcXnGwIGvDPtvXzJ7bBSNnZvKNZE6nR6dv4pi5Oe+x1tfasVv0Zzr7RVqSTpgxdRbN1D/t/O9QAt/+2Un9bzabQqJTq9nBbg0TL+er/S8zX7bY0FUA/DIsIyePze0en1V8V5yRR00Z4Zw0bizTp8aFxIZ8jwfcW/YrKqwiraPMAieUT1t1bF75eGxuM+CrQoMHJQ7oFnhpoS57IfVgLDPz4t5TjWWwMo1TY176YrdQOO8Y8lUqG7tTceNYIkk2vXG3niqh7CfS0owOy8+pTOqqthJN1sUK9S8g==" . . .