ELECTRIC AND ELECTRONIC APPARATUS AND INSTRUMENTS, NAMELY, RESIDUAL GAS ANALYZERS, AND CHEMICAL ANALYZERS FOR NON-MEDICAL, SCIENTIFIC USE; APPARATUS FOR RECORDING, TRANSMISSION OR REPRODUCTION OF SOUNDS OR IMAGES, NAMELY, VIDEO TAPE RECORDERS, AUDIO CASSETTE TAPE RECORDERS, RADIO TRANSMITTERS, TELEVISION SETS, AUDIO SPEAKERS, MICROPHONES, AND AUDIO HEADPHONES; MAGNETIC AND/OR OPTIC DATA CARRIERS AND RECORDING DISKS, NAMELY, COMPUTER FLOPPY DISKS, CD-R DISKS, CD-RW DISKS, DVD-R DISKS AND DVD-R...