Fundamental information on characteristics to be assessed and requirements for the boards irrespective of their method of manufacture and includes a composite test pattern.Cross References:BS 2011BS 4584BS 5830BS 6221:Part 2BS 6221:Part 3BS 6221:Part 4BS 6221:Part 5IEC 194IEC 326-1IEC 326-7IEC 326-8IEC Document 52(Central Office)248