All these processes divide the raw coal into the following three categories: 1  Clean coal, having ash content approx. 7 - 9%. 2  Middlings, having ash content approx. 25 - 30%. 3  Rejects, having ash content approx. 65 - 70%.
What is the most important information I should know about Robitussin Head & Chest Congestion (guaifenesin and phenylephrine)? Do not give this medication to a child younger than 4 years old. Always ask a doctor before giving a cough or cold medicine to a child.
Decongestant Medications. Pressure and congestion are common symptoms of nasal passage swelling. Decongestant medications are OTC products that relieve nasal swelling, pressure, and congestion but do not treat the cause of the inflammation.