this document provides feasibility study of using treated domestic wastewater in concrete mixing. today, concrete is one of the most important construction materials. from first time that concert was used in construction materials, always the drinkable water used for concrete mixing water. domestic wastewater contains about 400 ppm of organic materials. after the treatment of wastewater, concen...

___________________________________ April 4, 2002 National Organic Standards Board Technical Advisory Panel Review Page 1 of 1 Compiled by OMRI for the USDA National Organic Program Executive Summary Potassium sorbate was petitioned for use as a preservative for an unspecified seed film coating. The reviewers were unable to fully evaluate the petition since the specific polymer was not identifi...

The analysis of organic solvents by ICP-MS is challenging due to their high carbon content and volatility. Naphthas are an important class of organic liquids produced in the petrochemical industry, byproducts of the crude-oil refining process. Because they are organic based and have a variety of compositions, naphthas present a special challenge for ICP-MS analysis: the carbon causes polyatomic...

Recommended Reference Value Standards based on the potassium hydrogenphthalate buffer at various temperatures are reported for pH measurements in various binary solvent mixtures of water with eight organic solvents: methanol, ethanol, 2-propanol, 1,2-ethanediol, 2-methoxyethanol (“methylcellosolve”), acetonitrile, 1,4-dioxane, and dimethylsulphoxide, together with Reference Value Standards base...

In the last decade, a rising number of firms have adopted international environmental management and product standards such as the international ISO 14001 management standard or organic certification. While emerging research analyzes the impact of these practices on environmental performance or financial performance, there is, to our knowledge no empirical research on the effect of these standa...

The USDA established the National Organic Program (NOP) to develop national standards for organically produced agricultural products and establish an organic certification program as required by the Organic Foods Production Act (OFPA) passed by Congress in 1990. Organic crop production excludes conventional pesticides, petroleum – based fertilizers, and sewage sludge based fertilizers with some...