Sigma Test & Research Centre Mangolpuri, Delhi

Nabl accredited sigma offer various analytical testing services for drinking water, water for processed food, packaged drinking water, dialysis water, waste water, water for construction purpose, swimming pool water. Swimming pool water testing bacteriological condition: this test helps in determining the contamination by potentially harmful bacteria and other micro-organisms. Short term gastrointestinal disorders and illnesses such as gastro-enteritis, giardiasis, typhoid, dysentery, cholera, and hepatitis have been linked to water contaminated by microorganisms. Biochemical oxygen demand: this test helps in determining the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at certain temperature over a specific time period. It is not a precise quantitative test, although it is widely used as an indication of the organic quality of water. Coliforms (total and faecal): this test helps in monitoring the increase or decrease of many pathogenic bacteria total plate count: the plate count method relies on bacteria growing a colony on a nutrient medium so that the colony becomes visible to the naked eye and the number of colonies on a plate can be counted. Streptococci (faecal): this test helps in determining the information about the source of contamination. Enterococci escherichia coli legionella pseudomonas aeruginosa suspended solids total grease drinking water testing water and fresh air are the unavoidable reasons for life. More than 70% of human body is composed by water. But unfortunately, only 3% of water available across the globe is fresh water and only half of that is available to humans. In developing countries like india, drinking water testing is essential because population growth combined with industrial development is hard pressing on water demand resulting in the shrinkage of water table.

NABL accredited Sigma offers independent toy testing facilities on physical parameters like fire resistance, heavy metal, toxic substances on plastic toys, crayons, paper toys, clays, complying with EN-71 testing standards to ensure safety and quality. BS EN 71: SAFETY OF TOYS The safety of a child is an emotive subject, which is particularly close to the heart of every parent. When purchasing products for a child, product safety is an essential issue. Loose components, sharp edges, finger traps, the presence of toxic substances and materials which are too flammable can all result in serious harm to the child and severe consequences for the suppliers of any product deemed to be unsafe. Toys that are sold within the European Union are required to bear the CE mark. This is the manufacturer's declaration that the product meets the European Toy Safety Directive (2009 48EC), and has undergone a variety of product tests to ensure that it is safe for use. EN 71 is the European Standard for Toy Safety Testing. All the toys sold on the EU market need to comply with EN71 testing standards. EN 71 Part 1: Mechanical & Physical Properties of Toys The purpose of this standard is to reduce risks associated with children's toys. Specific tests are performed on toys based upon the type of toy it is andor characteristics of the toy. EN 71 Part 2: Flammability of Toys This portion determines the flammability of toys. It provides general requirements along with specific requirements for particular toys, which appear to be the most hazardous, this includes: toys to be worn on head, toy disguise costumes & intended to be worn by children in play, toys intended to be entered by a child, and soft filled toys. EN 71 Part 3: Migration of Certain Elements This part involves determining the migration of the following elements: Antimony, Barium, Cadmium, Chromium, Lead, Mercury, and Selenium from accessible parts of toys.

We provides soil testing services. Sigma analyses soil samples for ph, soil salts and nutrient levels in the soil for identifying its suitability for agriculture, presence of metals, organic matter, resistivity, crop nutrient requirements, fertilizer recommendations to get maximum productivity. Soil testing solutions offered help in testing overall health of the soil. Among many tests, one that is done includes testing of chloride content. Here, the negative effect of chloride concentration as present in soil on corrosion of reinforcing steel was done through measuring corrosion potentials as well as corrosion current density in soil testing. In the situation pertaining to presence of concrete in contact with soil can lead to corrosion of embedded reinforcement. Further, chloride levels in soils are also undertaken for checking of soil adjacent to concrete is suitable. The test method employed is meets is:4032-1985. Apart from this, other tests that are done for soil testing include: electrical resistivity – it helps in determining if inferiorcheaper substance has electrical resistivity of soil this is performed through testing soil physical properties like its structure, fluid composition and water content it is also an attractive tool for describing subsurface properties without digging

Sigma is ISO IEC 17025:2005 accredited ROHS Testing laboratory, equipped with sophisticated equipments like LC-ICPMS, GC-MSMS, spectroscopy to analyze and certify ROHS compliance testing in component materials through wet chemical screening, non-destructive analysis, XRF screening, and UV-vis. RoHS Compliance Testing has become standard procedure for most manufacturers, sellers, distributors and recyclers of electrical and electronic components or equipment sold or used in the European Union. The need for RoHS testing is a result of the Restriction of Hazardous Substances Directive or RoHS Directive, which became effective on July 1, 2006. The Directive was drawn up in the European Union to protect human health and the environment from hazardous substances by restricting the use of six hazardous chemicals in electrical and electronic products. We are equipped with ultra modern technology and sophisticated instruments like LC-ICPMS, GC-MSMS, spectroscopy that can determine the level of the following first four substances restricted by RoHS in component material: Mercury (Hg): 100ppm Hexavalent Chromium (Cr(VI)): 1000 ppm Cadmium (Cd): 100ppm Polybrominated Biphenyls (PBB): 1000 ppm Lead (Pb) : 1000ppm PolybrominatedDiphenyl Ethers (PBDE): 1000 ppm RoHS has set maximum concentration values for each of these restricted substances. All values are set at 0.1%, except for cadmium with a limit of 0.01%. STRC has the capabilities to test for lead, mercury, cadmium and hexavalent chromium. RoHS compliance testing is performed in our lab using spectroscopy and wet chemistry methods to determine the concentrations of these RoHS substances in test samples. All RoHS testing results are fully documented in Certified Test Reports for our customers' records.

We are providing processed food nutrition value testing.processed food nutrition value testing solutions offered comprise a wide range of tests that are performed for judging nutritional labeling of the food products. As part of regulation in many countries, ministry of health and family welfare had mandated manufactures of packaged food to declare nutritional information on product labs. This label offers consumers information regarding nature, contents, quantity as well as quality of food as well as also provides information on source of food being offered. Food adulteration test food contaminants pesticide residue analysis antibiotic residue analysis toxic elements heavy metals in foods mycotoxins residual analysis

We offer paper & packaging testing. Sigma is an iso 9001:2008 certified, nabl accredited laboratory capable of delivering extensive solutions for paper product analysis and testing determining the strength of paper, solid board and corrugated board, impact resistance of film, sheet, and laminated materials through tests like bs 3137, bs 2922:1 ,iso 2758,iso 2759, is: 1060 and more.paper & packaging testing solutions offered find application in testing of quality of paper and packaging. Among many tests performed, one of them is burst strength test that is used for testing of paper and packaging. The tests provide result of how much pressure paper can take before getting ruptured. Further, bursting strength is measured as maximum hydrostatic pressure that is needed for rupturing sample through constantly enhancing pressure that is applied through rubber diaphragm on sample of 1.20 - inch diameter (30.5 mm). Here, the test method complies to bs 3137, bs 2922:1 and international standard iso 2758 and iso 2759.

We are providing Agro Testing. Sigma is FSSAI approved, NABL & USFDA accredited food testing laboratory providing solutions for food agro testing, processed food nutrition value testing, Agro Testing, Pesticide residue analysis, Food Allergen Testing, Gluten free testing and more. Food Agro Testing solutions offered comprise a wide range of tests that are done for checking the quality standards of food as well as agro products. Here one of the tests done includes Nutritional Labeling that was introduced as part of normal regulation in many countries where Health & Family welfare mandate packaged food manufacturers to declare nutritional information on product labs. The FoodAgro Testing helps in providing information on source of the food.

We are offering environmental testing service. Analytical capabilities of iso 17025:205 accredited sigma include advanced solutions for environmental testing for water, soil, air, noise, chemicals, and other samples through trace analysis, ambient air testing, stack emission testing, water testing, co2 emission calculation, contamination analysis and much more. For leading a healthy and safe life we require a clean environment. Considering this requirement of mankind, we are involved in offering environmental testing and analytical services. The services offered by us helps in solving the current environmental analysis issues and also helps in devising new solutions for the challenges that can be arise in future. The services offered by us comprise of testing and analysis of soil, air, water and waste materials. These services are provided to various municipal, industrial, household & private concerns. Air testing sigma is iso 9001:2008 air testing laboratory providing indoor ambient air analysis, stack emissions, noise level monitoring, generator and engine exhausts, volatile compounds, semi-volatiles, hazardous air pollutants, air toxics, and particulates.

We are providing coal testing services. We sigma is equipped with bespoke lab facilities and expertise to provide coal sampling and testing, as well as other support services like ultimate analysis, proximate analysis, calorific value (grossnet) and ash analysis for the coal mining and processing industries. Leverage our technical capabilities to guarantee that your coal analysis meet global standards for quality and excellence. Coal testing solutions offered assists in offering quality testing of coal on different parameters. Among the many tests performed, one includes proximate analysis - moisture, volatile matter, ash and fixed carbon test that indicates percentage by weight of volatiles, fixed carbon, ash as well as moisture content in coal. Here, the high volatile matter content helps in indicating easy ignition of fuel. Further, the ash content is also important in design of pollution control equipment, ash handling systems of furnace, furnace grate, combustion volume and others. Some of the other checks done for coal testing include: calorific value (grossnet) � testing calorific value or heat of combustion or heating value of sample of fuel ultimate analysis � test is used for determining different elemental chemical constituents like oxygen, sulphur, carbon, hydrogen it is used in determining quantity of air needed for combustion, volume as well as composition of combustion gases ash analysis � the test is done to conduct ash analysis and is done with coal thoroughly burnt and ash material expressed as percentage of original weight ash fusion temperature � these tests are part of development of automated techniques for performing measurement requiring no intervention by operator here, fusion temperatures are valuable guides to high-temperature behavior of fuel inorganic material

Sigma is an advanced nabl accredited chemical testing laboratory with capabilities including advanced trace chemical analysis, diverse analytical capabilities and identification of chemicals composition, msds, unknown materials and chemical contamination, in accordance with is, astm, din, en and other recognized industry standards. With our chemical testing and analysis services, we help in meeting the relevant product regulations and ensure protection from probable harm. Consumer goods are meant to be tested for perfection on various standards, regulations and certifications. These goods can also be tested on various parameters devised by ngo (non-governmental organisation). We have the full technical resources, with the help of which, we are able to fulfill the requirements in compliance with international regulations, technical specifications and ngo's. Our testing lab is well equipped with all the facilities that detects and identifies the unknown chemical traces and contamination. This helps in ensuring materials and product quality control and supports in formulation and de-formulation of projects. ferrous and non-ferrous metals minerals and ore testing corrosion testing metal testing petro-chemical and basic chemical testing the petro-chemical and basic chemical testing is conducted by us in compliance with various industry accepted protocols and standards, included astm and ip. Chemicals tested: acrylonitrile acids, acrylates, acetates, alcohols, aniline, amines, aromatics, acetone benzene chlorinated solvents, carbon tetrachloride, cyclohexane ethanol, esters isopropyl alcohol ( ipa), inorganic acids glycols heptane ketones methanol , methyl ethyl ketone (mek) nonenes organic acids, olefins paraffins, phenol styrene toluene, trichloroethylene (tce), tetramer xylene, and other petrochemical and basic chemical products astm chemical testing