Hi Anameilike: To seeing if this him uses as help:

There are three scales:
The Centesimal scale Hahnemanniana (CH) that prepares itself of the following form: A drop of dye takes mother in 99 drops of alcohol, three times are shaken and there is obtained the first CH or the first Centesimal Hahnemanniana. Of there a drop takes, 99 drops of alcohol are added, three times are shaken, and we have the second CH. And this way successively diluting a drop in 99 every time, we are obtaining her 1CH, 2CH, 3 CH ... etc.

The second scale is the Korsacoviana. Korsacow discovered that if a flask is filled with 99 drops and later empty, in the flask a drop remains impregnated more or less, then the flask was started filling again, to shake, to throw, to fill, to shake, to throw, etc. Nowadays they are in use revitalizing, a few devices that imitate this procedure, throb, overturn, throb... They do not do it with alcohol but with distilled water, since many liters of water are needed to come to powers a million and more.

The centesimal Hahnemannianas and the Korsacovianas has to be in liquid, that is to say are dinamizaciones in liquid. Of there it is possible to to take a drop and impregnate 500 globules or 700 globules and do 30 Korsacoviana or 30K, or Centesimal Hahnemanniana, but we are doing her of a drop of the dinamizacion. In Spain for example, all the powers are in globules, not in drops, but the dyes that are bought in England, Germany or in other countries, before them going on to globules are done in drops. When you ask for a centesimal dose, it is of going, a CH, until it specifies, they can give him a mixture, that is to say, a dose that belongs to the 1 to 30 Centesimal CH Hahnemanniana, but of 30 to 200 it is done by the method Korsacoviano and of 200 for above, with the revitalizing one, in end, a mixture. The dilution and the continuous sucución is the essence of the Korsacoviana.

Finally there is the LM that are the 50 milesimales, that prepare themselves otherwise, A drop of dye mother is divided in 500 globules, a globule takes, is diluted in 99 drops, of these 99 drops one returns to take a drop, is diluted in 500 globules and there the first one is obtained, that is to say 1 LM. Later another globule takes, is diluted in 99 drops, a drop takes, puts in 500 globules, and 2 LM is obtained. It is like to happen the centesimal one 500 globules, as a more distributed dinamizacion, because of it the great discussion is between the pharmacists homeopáticos of if it is divided in 500 globules or in 500 drops. What we are interested is that the LM theoretically has to come in globules. The LM seems to have fewer aggravations.

Theoretically when you speak about 30 CH it is all the same in what place of the world he asks for her, it should be 30 Centesimal Hahnemanniana, and the same thing for the LM or for the Korsacovianas. In the practice, there are great variety of preparations not trustworthy all, for what it is necessary to assure of the origin.
Finally, in France it is excellent homeopaths unicistas or classic. The AFADH (Association Francaise pour l´Approfondissement de la Doctrine Hahnemannienne); is a good example of it. Regards.