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BAR SHAPE CODES TO BS 8666:2005 clear Click here
for Tables
  Shape Code - Total length of bar (L) measured along centre line  
  63   π (A-d) + B
Where B is the overlap
  64   Cπ (A-d)
Where B is greater than A/5
this equation no longer applies,
in which case the following
formula may be used:
L = C ((π(A-d))² + B²)0.5
C = Number of turns
  67   A + 2B + C + (D) - 2r - 4d
Isometric sketch.
Neither C nor (D) shall be less
than P in Table 2
CODE 1 clear CODE 2 clear CODE 3 clear CODE 4 clear CODE 5 clear CODE 6
clear clear clear   clear   clear   clear   clear
CODE 7 clear CODE 8   CODE 9   CODE 10   CODE 11   NOTES
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