Design, construction, inspection, testing of cylindrical shell and plain tube heat exchangers. Shell diameters 6 in to 42 in, tube lengths 6 ft to 16 ft, tube diameters ½ in to 1½ in. Type 1: fixed tube-plate (non-removable tube bundle); Type 2: U-tube (removable tube bundle); Type 3: floating head (removable tube bundle).Cross References:BS 24:Part 5BS 378BS 885BS 1133 BS 1035-40, 1172-74, 1861, 1954BS 1306:Part 2BS 1400BS 1464BS 1470BS 1471BS 1474BS 1476BS 1500:Part 1BS 1501-1506BS 1508BS 1515BS 1541BS 1600BS 1601BS 1602BS 1603BS 1604BS 1605 BS 1606BS 1607BS 1627BS 1628BS 1750BS 1867BS 1948BS 2017BS 2041BS 3059/2BS 3059/3BS 3059/4BS 3059/10BS 3059/13BS 3072BS 3074