In order to make a stock solution, you need to determine 2 things; the concentration of the stock and the amount you need. Usually you will estimate each of these based on your needs. The concentration should be between 10 and 100 times higher than the concentration that you will need in your working solution.
Find out information about Olefins. a homologous series of unsaturated hydrocarbons of the general formula C n H2 n , with an open chain and one carbon-carbon double bond; they belong to the... Explanation of Olefins
There are several different types of synthetic fabrics suitable for use in making outdoor cushion covers. Olefin is very resistant to sun, mildew, heat and moisture. Olefin fabric are made from a synthetic fibre made from a polyolefin, such as polypropylene or polyethylene. Olefinâs advantages are its strength, colourfastness and comfort, its resistance to staining, mildew, abrasion, sunlight and its good bulk and cover. Most Warwick outdoor fabrics are made from olefins.