. . . . "the lower and upper volume concentration boundaries of a flammable gas or vapor in air, expressed in % v/v, within which ignition and flame propagation can occur." . . . "Explosive limits" . . . . "Christos Vasileiou" . "2026-01-08T14:53:37.804Z"^^ . . . . . . . . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz1OobdRASd9SftHrLhG905OXjv8DHndvyWzXRJ5EDFPankMSnHZPHK+g2qEeRWdonstt55CLrpTpWsVv9xRtTqPidXHbnWLBXX42iCB+EnZNoKqAVKF5GxkSR38S0uTTq3aeQJbw2kTpx6LMkspmuH95fgAI/lfqPWrxdlI98jIeHQ14UXZpiWmkkvPgC9GVgmwHiG1hB/NCA2fKCOxVodN44OfhAPtkWmPJ40IcGPSalI4HRqgLLI5PabdRk3PiG81cUngmQU1Xk6EapzkRJGenkOlGsC5L4ktEPO6LS9uBMLTMLQDtGtkrcwqg5HmeKv7Ili3vgr3LL8/GaBBOLQIDAQAB" . "zeYEbZGTMm+Wksgli1lvNgsdVhe7cCZn2cS0dCpzdZ+6kw4gUynXddqYgXS+qjHSsUCv0BPnwtrX8mhDG4FnFrZdMcGnMMfrAoMxlNiO+bgZmk2eM+CD1OrCgHdZ8H2301eJP48hcTRe4nkpXVuSUurszIQ56OaiYv8XA+S7jTAcncj4l8K7lq8xktMG8K2WK1OLo7+wEv6GpKgtqB7SYa5RIspAneU0qXIwO8LT6OeuMsfCQpUGYlizCWKPdxLJLA8RsLMBjVZ+X3TYvaqhlsZZ4wHgARaFVNwX6X34zgILaa8q/voYdb/5yfNyUfs3izmUTIcww4qK5UetD+EL+w==" . . .