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part per hundred million
Symbol:  pphm 
Category:  Fraction 
SI Equivalent:  10×10-9 
Dimension nil (fraction) 
System:  INT 
 
Notes
1 pphm = 10-8
Convert     pphm  
1 pphm =
Fraction
  Symbol Unit Name
2.4×10-7  ct, Kt  carat (karat) 
10  ppb  part per billion 
1×10-6  pph, %  part per hundred 
1×10-3  ppht  part per hundred thousand 
10×10-3  ppm  part per million 
10×106  ppq  part per quadrillion 
10000  ppt  part per tera 
10×10-6  ppt  part per thousand 
Glossary