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The National Accreditation Board for Testing and Calibration Laboratories (NABL) administers laboratory accreditation activities. The NABL Guidelines for Quality ensures that the laboratory complies with ISO 15189 (Medical Laboratories – Requirements for Quality and Competence). The guidelines mandate the laboratories to follow the national, regional and local laws and regulations as applicable.  Scope of laboratories to acquire NABL Certificate for Quality testing in Chennai Clinical Biochemistry Clinical Pathology Haematology and Immunohaematology Microbiology and Serology  Histopathology  Cytopathology Genetics  Nuclear Medicine (in-vitro tests only) Guidelines to be followed Following are a few of the NABL Guidelines for Quality followed by various laboratories: Any laboratory operating at more than one location within a district must have the same legal identity. The lab should have documented policies and procedures for selecting and referring to other labs f...

The limit test of heavy metals in pharmaceuticals indicates the number of heavy metals present as drug impurities. Heavy metals' presence is expressed in the quantity of lead. These are the metallic inclusions darkened with sodium sulphide in a hydrogen sulphide-saturated solution. The leading labs for Metal testing in Chennai carry out this test on metals like lead, mercury, bismuth, arsenic, antimony, tin, silver, copper Pb) etc. The presence of impurities is presented as parts of lead (per million parts of the substance or ppm. According to Indian Pharmacopoeia, 20 ppm is the limit of impurities in heavy metals. Apparatus needed for limit test Nessler cylinders Glass rod Stand Chemicals required for test Dilute CH3COOH (10% v/v) Dilute ammonia (10% v/v) Hydrogen sulphide solution  Standard lead solution  Lead nitrate stock solution Test procedure The leading Metal Inspection & Analysis Testing in Chennai suggests the following method for the limit test of heavy metals....

Food and beverage testing must include chemical analysis because it promotes product quality, safety, and legal compliance. To identify and measure chemical components present in the food and beverage testing labs used in Chennai , various analytical techniques are used.  Here are some commonly employed methods: Spectroscopy: Spectroscopic techniques such as infrared (IR) spectroscopy, nuclear magnetic resonance (NMR), and ultraviolet-visible (UV-Vis) spectroscopy can identify and quantify specific compounds based on their unique spectral signatures. Chromatography: Chromatographic techniques, such as gas chromatography (GC) and high-performance liquid chromatography (HPLC), are used to separate and analyze complex mixtures of compounds. These methods are particularly useful for detecting and quantifying pesticides, additives, flavors, vitamins, and other components. Mass spectrometry (MS): Mass spectrometry is often coupled with chromatographic techniques (GC-MS or LC-MS) to iden...