General information, terminology, test procedures and a range of test methods for the family of cathode ray tubes.Cross References:BS 448BS 1991:Part 6BS 2011BS 3939:Section 29BS 4319:Part 1BS 4727BS 5555BS 6001BS E9000:Part 1BS E9000:Part 2BS E9006BS E9007IEC 27IEC 100IEC 134IEC 139IEC 151-1IEC 151-2IEC 151-13IEC 151-14IEC 151-15IEC 151-16IEC 236CECC 00 400Replaces BS 9050:1971 which remains current due to existing approvals.