Spectro Analytical Labs Limited
Tuesday, February 12, 2013
THE FUTURE OF WORKPLACE MANAGEMENT – FACILITY MANAGEMENT SERVICES
Monday, August 6, 2012
Significance of the concept of 'Cleanroom'
Maintenance of a Clean room needs utmost care and control, and this can be accomplished by proper design of that room, availability of testing equipments and skilled technicians, and regular monitoring in order to maintain it.
'Cleanroom' as the name suggests refers to a room, space, or a particular confinement which is quite clean. But having said that, when we are talking of a scientific process any system needs to be quantified, and the same goes for a 'Cleanroom'. Although there are a number of different standard definitions of cleanroom, it can be defined as " A room where there is a controlled level of contamination, and the contaminants can be dust, bacteria, mold, electro-static discharge etc." The level of contamination is quantified by the number of air particles/particulates, of a particular particle size, per unit volume (generally cubic metre).
The concept of Cleanroom and Cleanroom service has received prominence in a number of industries and service providers which lay emphasis on precision like semi-conductor/electronics, microelectronics, aerospace, pharmaceuticals, hospitals, microbiological laboratories, and other sophisticated equipment manufacturers. Since the work of maintaining a cleanroom is quite complicated, the varieties of jobs also vary. The expertise level range from that of low-skilled workers to that of highly skilled engineers and microbiologists. But all the technicians related to Clean Room Validation need to be thoroughly trained in the basic points, like wearing protective gears like masks, gloves, headgears etc., and also maintaining and following certain protocols related to the process of entering, exiting, and other movements inside that 'Contamination-free' room. Hence the job, in general, needs a lot of painstaking efforts on the part of all the technicians.
A number of environmental factors need to be controlled within specified limits in order to maintain a Clean room. These are Temperature, Air-borne particulates, Microbial particles, Relative humidity, Differential pressure, and Air Flow. Although the design of a Clean room involves quite a complicated methodology, the basic design can be summarized to employ increased air supply, use of high efficiency filters like HEPA (High Efficiency Particulate Air) & ULPA (Ultra Low Penetration Air), & room pressurization. The execution of Clean room Validation is accomplished through five steps, and they are: Design Qualification, Installation Qualification, Operation Qualification, Performance Qualification, and Control Monitor. The laboratories that provide Cleanroom Validation & Designing follow ISO 14644, and some of the tests required for evaluation and certification of Cleanroom are Airborne Particle count test, Airflow (Laminar Flow) Velocity test, Air Pressure differential test, Installed Filter leakage test, Airflow visualization test, and Airflow direction test.The frequency of conducting such tests is also a matter of importance and needs to be followed scrupulously. Classification of Clean room to various grades is done according to ISO 14644-1, BS 5295, and Federal standard 209E. ISO 14644 though is the current regulatory standard.
Thursday, July 12, 2012
Implications of testing of Petroleum Products
The importance of the use of petroleum products in today’s era can be seen and realized almost everywhere. The vast range of petroleum and petrochemical products being used in almost every sphere of activities is proof enough of the fact that such products have become indispensable for the existence of mankind. Although the history of the usage of petroleum products dates back to medieval periods, it is only recently that the importance of quality of such products has been realized. This is mainly because of the wide applications of those products like in household purposes, industries, automobiles, aviation sector, etc. and also because of the improvement in the refining processes developed as a result of evolution of new technologies.
Petroleum literally means ‘Rock Oil’ and implies a host of hydrocarbon-rich compounds that have accumulated in subterranean reservoirs. The large number of petroleum products exhibits a great degree of diversity in terms of composition, properties, and end-use. In order to categorize these compounds into different classes, it is vital to characterize each and every type according to their properties. This can be done through proper physical and chemical testing of petroleum products. Some of the common physical tests of petroleum products include boiling point/range, density, specific gravity, viscosity, Flash point, Pour point, Octane number, Cetane number etc. Some of the common chemical testing parameters of petro-products include elemental composition in terms of Carbon, Hydrogen, Sulfur, Phosphorus, Nitrogen, Calorific value estimation, Ash content etc. Broadly speaking, the main aim of testing of petroleum products is to address the following issues:
- Characterization of the key properties necessary from the point of view of use in refineries.
- Identification and quantification of contaminants like metal, alloys etc. which can impair the functioning of refining equipments.
- Determination of chemical composition in order to assess the environmental impact of the particular petroleum product.
- Ascertaining the commercial value of a product.
Apart from the determination of the above-mentioned bulk properties of petroleum products, microscopic analysis also holds paramount importance especially in preventive maintenance activities. In this context, Ferrography needs a well-deserved mention. Also known as wear-particle/wear-debris analysis and machine condition monitoring, ferrography is the microscopic examination of used industrial fluids or lubricants for the presence of ferrous and non-ferrous particles. The presence of such particles indicates mechanical wear of industrial equipments and such an analysis constitute a tool for preventive maintenance of industrial machines. Assessment of the conditions of lubricating oils is as vital and synonymous to the checking of health of an individual enabled by blood testing. Lubricants are the life-line of industrial machineries. Analysis of lubricants has three aspects: type and amount of contaminants, physical conditions of the lubricant like viscosity, and assessment of machine wear in terms of metal composition. The key objectives of Ferrography Analysis can be summarized as follows:
- Extending equipment life.
- Historic trending to help reduce maintenance and operation costs.
- Avoiding or reducing sudden downtime costs.
- Following the guiding principle of ‘Preventive Maintenance’ which is to counter the problem before it gets too late.
Monday, July 9, 2012
Importance of laboratory testing of Environmental & Building materials
The basic properties of engineering or building materials can be broadly categorized into three types: Physical, Mechanical and Chemical. All these three test types are used to characterize the test items in terms of their respective properties. Mechanical properties describe the behavior of the materials under the application of external loads. Some of the mechanical properties are Compressive strength, tensile strength, Young’s modulus, Hardness etc. The physical properties arise due to the physical state or composition of the substance, and some of the common properties are density, specific gravity, soundness, permeability, porosity, moisture, texture etc. Last but not the least, the chemical properties reveal about the chemical composition and the chemical characteristics which arise as a result of various relevant chemical reactions involving the test item. Some such properties include pH, acidity, alkalinity, ash content, chemical composition of key ingredients (like cations, anions, chemical compounds) in cement, minerals etc. Building materials testing not only involves testing of all the key ingredients of construction, like cement, aggregate, concrete, reinforced steel etc., but also involves soil testing and water testing used for construction. The testing of such materials is done at various stages of the construction activities, and hence form an important part of the Quality Assurance program.
Friday, June 8, 2012
Calibration Services promote Quality and Efficiency
Calibration is an integral requirement for Instrumentation professionals who provide services to a number of important sectors such as medical care, medication, product development, food & beverage sector, etc. Device calibration is amongst the primary techniques that ensure the precision of the devices. Simply put, Calibration is the process of verifying the results generated by a measuring instrument. Although the exact method of calibration varies from one instrument to another, the basic process generally involves comparing the results from the test instrument with that of the reference standard. The latter should have a traceable result with a stated uncertainty. More often than not, the process of calibration is a comparison process rather an absolute one; the test instrument is calibrated against a more accurate one.
