Physical and Chemical Parameters (PC)
This testing panel includes multiple parameters for physical and chemical analysis of water by advanced technologies. A total of 20 parameters are analyzed under this criterion, other than taste and odour.
Physical Characteristics
The physical characteristics of water are very important as they are the first visibly noticeable factors. Ideally water should be colourless and odourless with a neutral pH. Presence of dissolved components like clay, silt, algal materials, etc. makes water turbid and a pH change can make it corrosive.
Chemical Characteristics
Chemical testing and analysis is vital for regulatory compliance and to understand the quality and composition of chemical substances and materials that are used in products, industrial processes and manufacturing. Specialist industry knowledge, and expertise in applying the most relevant methodology are the keys to successful chemical testing. Advanced analytical instrumentation or a combination of techniques is necessary to solve problems or determine composition. Ideally pure water should be non-reactive; however presence of some chemicals can alter this property and adversely affect health. Though tap water supplied is chlorinated, excessive chlorine generates chloroform which is carcinogenic. Also nitrates can impair oxygen transport in the body causing brain death, while fluoride can cause dental fluorosis and affect skeletal tissues. Sulfide causes diarrhea, while anionic detergents if ingested, change the pH of blood and can also burn the tissues. Presence of cyanide is generally due to contamination by industrial effluents and though the hazardous effects of excess deposition manifests quite late, it may affect thyroid and cause nerve damage.