2018DB42/T 348-2018 Specifications for design, construction and acceptance of linear fiber grating temperature sensing fire alarm system
2011DB42/ 348-2011 Specifications for design, construction and acceptance of linear fiber grating temperature sensing fire alarm system
2006DB42/ 348-2006 Code for desgin,installation & acceptance of the fiber Bragg grating feels the warm fire alarm system
DB42/ 348-2011 Specifications for design, construction and acceptance of linear fiber grating temperature sensing fire alarm system was changed to DB42/T 348-2018 Specifications for design, construction and acceptance of linear fiber grating temperature sensing fire alarm system.