percentage mass

percentage mass

calculation to convert drug concentration in solution (%) to mass (in mg); based on the principle that 1% solution contains 10mg of drug per 1mL of solution (see Table 1)
Table 1: Calculation of the percentage mass of solute in solution
Solution strength expressed as a percentageSolution strength expressed as percentage mass (mg/mL)(A )Example of volume administered (B )Total mass of drug administered (A × B )

Note: 1% solution contains 10mg of solute per millilitre of solution.

The percentage mass is used in the calculation of the maximum safe dose (MSD) of an administered drug (where MSD is the maximum dose that can be administered in 24 hours, in relation to the body mass of the patient, the volume of drug injected and the strength [%] of the drug in solution; the MSDs of individual anaesthetic drugs vary - see Table 2).

Table 2: Maximum safe doses of plain local anaesthetic agents (for 70Kg adult in 24 hours)
Agent (brand name)Maximum safe dose (70-kg adult)Dose per kg of body mass
Lidocaine (Xylocaine)200mg3mg/kg
Bupivacaine (Marcain)150mg2mg/kg
Levo-bupivacaine (Chirocaine)150mg2mg/kg
Mepivacaine (Scandonest)400mg6mg/kg
Prilocaine (Citanest)400mg6mg/kg
Ropivacaine (Naropin)250mg3.5mg/kg
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If the quantity of any single or several adjacent narrow fractions in repair materials is high, the section of RAP gradation broken-line appears to be steeper (the difference between the percentage mass passing the adjacent sieves increases).
9% was observed with respect to the content of granules sifted through an 8 mm sieve with the average percentage mass passing the sieve [bar.
The variation of gradation is expressed in terms of standard deviations in percentage mass passing the sieves ([s.
50 derived from the max values of [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] in the percentage mass of RAP-1, RAP-2 and RAP-3 aggregate passing the sieves (6.
If RAP aggregate had been screened through a set of sieves with different size meshes, as required under the national standards of individual countries, for the percentage mass passing the sieves there would have been obtained different standard deviations, yet the correlative dependence of gradation variation parameters ([s.
Item Frequency Percentage Mass (g) Percentage Plant material Amaranthaceac Amaranthus 197 35.
The mass measurement can be reported as grams or as percentage mass change.
A percentage mass change will indicate the percent polymer present in the compound.

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