"Every Students and Professional Chemist have right to know about every industrial chemical testing knowledge and its procedure"
Coal grading for non-coking coal is determined by the Gross Calorific Value (GCV), whereas the grading of coking coal is based on ash content. For semi-coking or weakly coking coal, the classification considers both ash and moisture content, as per the prevailing notification. Coking Coal Grades: Semi-coking and Weakly Coking Coal Grades: Non-coking Coal Grades:
1.0 Scope This SOP is applicable for the determination of Biochemical Oxygen demand in waste water. 2.0 Responsibility – Chemist 3.0 Principle The biochemical oxygen demand (BOD) test is based on mainly bio-assay procedure which Measures the dissolved oxygen consumed by micro-organisms while assimilating and oxidizing the organic matter under aerobic conditions. The standard test…
How to Determine the Quantity of Oil and Grease in Water by Liquid-Liquid Partition Gravimetric Method Introduction Oil and grease are common contaminants in water, and can be harmful to human health and the environment. This method describes how to determine the quantity of oil and grease in water using a liquid-liquid partition gravimetric method….
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Moisture analysis by Karl fisher Karl Fisher Titration is a technique for the determination of moisture content. The technique was developed by a chemist named Karl Fischer. It is based on a reagent which reacts with water and converts the water into a non-conductive chemical. Karl Fisher provides for the specific detection of water content in…
What is NAS in Oil Analysis NAS stands for “National Aerospace Standard” and is used to describe a system for measuring the cleanliness of fluids, including oils. In the context of oil analysis, the NAS system is used to determine the level of particulate contamination in the oil, which can be an indicator of wear…
What is Oil Testing ? Oil testing or Oil analysis is the process of analyzing the physical, chemical, and performance characteristics of different types of oils, such as crude oil, refined petroleum products, lubricants, and edible oils. The purpose of oil testing is to ensure that the oils meet the required safety, environmental, and performance…
What is Dissolve oxygen in water Dissolved oxygen (DO) in water refers to the amount of oxygen gas that is present in water and is available for aquatic organisms to breathe. Oxygen dissolves in water through the process of diffusion, which is driven by the concentration gradient between the air and water. The concentration of…
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What Is Equilibrated Moisture in coal ? Equilibrium moisture in coal refers to the moisture content that coal attains when it is stored in a specific environment and reaches a state of moisture balance with that environment. This state of moisture balance is achieved when the coal has been exposed to the same temperature and…
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Nitrite Nitrogen in Water Nitrite nitrogen is a chemical parameter that refers to the amount of nitrite ions present in water. Nitrite is a compound that can form when nitrogen compounds, such as ammonia, are broken down by bacteria in the water. It can also be a byproduct of certain industrial processes. Nitrite nitrogen levels…
