linen cotton thread number 1 lea nel to ypp nm tex size ply conversions

 METRIC CONVERSION TABLES.  
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Also information on Imperial/Metric Conversion Tables ;
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and the SI Prefixes (giga- , etc.).

 LINEN      COTTON
Lea (Nel) ypp Nm Tex       Size/Ply ypp
   
m/g
g/km
      1 840
No. 1 300 0.6 1659       6/2 2520
No. 4 1200 2.4 420       8/2 3360
No. 8 2400 4.8 209       10/2 4200
No.10 3000 6.0 165       12/2 5040
No.12 3600 7.2 138       6/3 1680
No.16 4800 9.6 103       8/4 1680
No.20 6000 12.0 83       8/6 1120

notes :-
 
Linen ypp = (300 x Lea) / 1ply
Cotton ypp = (840 x Size) / ply
Nm = metres per gram
Tex = grams per 1000 metres

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We have tried to be accurate with the above table but cannot be held responsible for in-accuracies.
Go back to first principals and double check your calculations if the result is 'mission critical'.
Even the brilliant brains at NASA have made a conversion error or two !

More information on the SI System (Le Système International d'Unités) base units and definitions.
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