1、 , () INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) EN 13819-2 2014 (EN 13819-2:2002, IDT) EN 13819-22014 II , 1.092 . 1.22009 . , . , , , 1 - ( ) 2 3 , ( 30 2014 . 70-) : ( 3166) 00497 ( 3166) 00497 AM AZ BY KG MD RU TJ - 4 14 2014 . 1329- EN 13819-22014 1 2015 . 5 EN 13
2、819-2:2002 Hearing protectors Testing Part 2: Acoustic test methods ( . . 2. ). . (IDT). 13819-22011 6 , . () . , , 2015 , EN 13819-22014 1 Occupation safety standards system. Personal hearing protectors. Acoustic test methods 20151201 1 . , . 2 : EN 24869-1 Acoustics Hearing protectors Part 1: Subj
3、ective method for the measurement of sound attenuation (ISO 4869-1:1990) (. . 1. ) EN 24869-3 Acoustics Hearing protectors Part 3: Simplified method for measurement of insertion loss of ear-muff type protectors for quality inspection purposes (ISO/TR 4869-3:1989) (. . 3. ) EN ISO 4869-2 Acoustics He
4、aring protectors Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn (ISO 4869-2:1994) (. . 2. - ) ISO 11904-1 Acoustics Determination of sound immission from sound sources placed close to the ears Part 1: Technique using a microphone in a real ear (MIRE
5、-technique) (ISO 11904-1:2002) (. . 1. ( MIRE) 3 : 3.1 acoustic text fixture (ATF): , N 24869-3. 3.2 ( ) (insertion loss): , , . 3.3 (sound attenuation): . 4 4.1 ( ) 4.1.1 () . EN 13819-22014 2 4.1.2 , , N 24869-3. , , , 1, , . 0,2 . 1 4.1.3 N 24869-3 : ) , . , , . , ; b) 250 8000 ; c) 4.1.3 ), ; EN
6、 13819-22014 3d) , ; e) , ; f) , , , , . 4.1.4 b) 4.1.3. , b) 4.1.3. 4.2 4.2.1 () . 4.2.2 , , N 24869-1. 4.2.3 4.2.3.1 N 24869-1. 4.2.3.2 , . 4.2.3.3 . 4.2.3.4 , , , , . , . , . 4.2.3.5 . , 16 . , , : a) , ;b) H, L N ISO 4869-2 a, 1;c) H, L, , b) 4.2.3.5; d) H , L 3 , . ; e) d) , , . 4.2.3.6 , , , ,
7、 , : ) , ; b) H, L N ISO 4869-2 a, 1;c) H, L, , b) 4.2.3.6; d) H , L 3 , . ; e) d) , , ; f) , , , , . , . EN 13819-22014 4 16 , ; g) , , , , ; h) , , 16 . 4.2.4 , d) e) 4.2.3.5 e) g) 4.2.3.6 N 24869-1. 4.3 , ( ) 4.3.1 , , ( ), ( ) () . ( -) : LDF Aeq.4.3.2 N ISO 11904-1. 4.3.3 N ISO 11904-1. , : ) , ISO 11904-1 ( 10), , ISO 11904-1 ( 9); - ; b) , ; c) , , , , N 24869-1; d) , , . ; e) : H : (LC- L= -1,2 ); M : (LC- L= 2 ); L : (LC- L= 6 ). 1 N ISO 4869-1 H- LC- L= 2 L- LC- L= 10 . , H L , . - H, L , . 2 H- , (+3 /) 100 10 , - 2 , L- (-3 /) 100 10 . 3 1 2 . 4.3.4
