Số hiệu tiêu chuẩn
EN 24869-3
Tên tiêu chuẩn
Acoustics; hearing protectors; part 3: simplified method for the measurement of insertion loss of ear-muff type protectors for quality inspection purposes (ISO/TR 4869-3:1989)
Ngày phát hành
1993-11-00
Tiêu chuẩn tương đương
DIN EN 24869-3 (1994-02), IDT * BS EN 24869-3 (1994-02-15), IDT * NF S31-062-3 (1994-03-01), IDT * ISO/TR 4869-3 (1989-11), IDT * OENORM EN 24869-3 (1994-06-01), IDT * OENORM EN 24869-3 (1993-05-01), IDT * PN-EN 24869-3 (2001-06-13), IDT * SS-EN 24869-3 (1994-08-12), IDT * UNE-EN 24869-3 (1994-12-31), IDT * TS EN 24869-3 (2000-11-07), IDT * STN EN 24869-3 (1998-04-01), IDT * CSN EN 24869-3 (1996-06-01), IDT * DS/EN 24869-3 (1994-08-04), IDT * NPR-ISO/TR 4869-3:1994 en (1994-01-01), IDT
Từ khóa
Acoustic measurement * Acoustic testing * Acoustics * Closed test rooms * Convergence * Data * Definitions * Ear muffs * Ear protectors * Ear-muff type wearing protectors * Inspection * Insulations * Measurement * Measuring equipment * Measuring techniques * Methods * Microphones * Noise * Noise reduction * Pressing force * Quality control * Safety devices * Shafts * Signals * Sound * Sound insulation * Sound intensity * Sound levels * Sound pressure level * Test apparatus * Testing * Tests * Tunnels * Procedures * Processes
.jpg&w=145&h=165){kind=logo}
EN 24869-3
.png)
.jpg){kind=logo}
.jpg){kind=logo}
-_-logo.png){kind=logo}
