Analysing the Coal:
Dry, mineral matter-free (dmmf) basis---The coal is assumed to be
free of both moisture and mineral matter and the data are a measure
of only the organic portion of the coal
Dry, ash-free (daf) basis---Data are expressed as percentages of the
coal with the moisture and ash removed
To convert moisture content from dry basis to wet basis, use the formula: MCwet = (MCdry / (1 - MCdry)) where MCwet is the moisture content on a wet basis and MCdry is the moisture content on a dry basis. For example, if the moisture content on a dry basis is 10%, the moisture content on a wet basis would be 11.1%.
To calculate the potency of a standard on an "as is" basis from an anhydrous and solvent-free basis, you need to take into account the moisture and solvent content in the standard. First, determine the percentage of water and solvent in the standard. Then, adjust the potency by factoring in the moisture and solvent content to arrive at the potency on an "as is" basis. This ensures that you are accurately reflecting the concentration of the active ingredient in the standard.
Assay on 'as is' basis refers to the composition of a substance including its water content, while assay on 'dried' basis refers to the composition of a substance after removing the water content. Comparing these two types of assays can help in understanding the true chemical composition of a substance excluding the influence of water content.
As-dried basis in coal refers to the coal's composition when all moisture has been removed, while as-received basis includes the naturally occurring moisture content. As-dried basis is commonly used for comparing coal qualities, as it eliminates the variable of moisture content. On the other hand, as-received basis reflects the coal's properties as it is found in its natural state.
xx.x% on a dried basis implies that the material will have had all possible liquid impurities (water, solvents, residual liquid chemicals) removed by the drying process.Let's call w% is % of (water content, solvents, and residual) all combine. Your as-is value would be:xx.x% * (100 - w%)% as-is = ---------------------100Hopes that help.
DAF stands for Deutsche Arbeitsfront.
Daf Palfrey was born in 1973.
DAF Trucks was created in 1928.
DAF Daffodil was created in 1961.
DAF NV ended in 1993.
DAF NV was created in 1987.
Leyland DAF was created in 1987.
Leyland DAF ended in 1993.
Daf vehicles originally came from Holland.
Omar Daf was born on 1977-02-12.
Daf-atan means 'all of a sudden'.
Daf Hobson's birth name is Dafydd Hobson.