Asbestos Abatement >> How To Remove Asbestos From An Apartment Building

Where more than one liquid is suggested, the first is preferred; however, in some cases this liquid will not give good dispersion color. Take care to avoid interferences in the other liquid; e.g., wollastonite in n = 1.620 will give the same colors as tremolite. In n = 1.605 wollastonite will appear yellow in all How To Remove Asbestos From An Apartment Building directions. 

Wollastonite may be determined under crossed polars as it will change from blue to yellow as it is rotated along its fiber axis by tapping on the cover slip. Asbestos minerals will not change in this way. Determination of the angle of extinction may, when   resent, aid in the How To Remove Asbestos From An Apartment Building determination of anthophyllite from tremolite. 

True asbestos fibers usually have 0 deg. extinction or ambiguous extinction, while cleavage  fragments have more definite extinction. Continue analysis until both preparations have been examined and all present How To Remove Asbestos From An Apartment Building species of asbestos are identified. If there are no fibers present, or there is less than 0.1% present, end the analysis with the minimum number of slides (2).  

Some fibers have a coating on them which makes dispersion microscopy very difficult or impossible. Becke line How To Remove Asbestos From An Apartment Building analysis or electron microscopy may be performed in those cases. Determine the percentage by light microscopy. TEM analysis tends to overestimate the actual percentage present. (6) 

Percentage determination is an estimate of occluded area, tempered by gross observation. Gross observation information is used to make sure that the high magnification microscopy does not greatly over- or under-estimate the amount of fiber present. This part of the How To Remove Asbestos From An Apartment Building analysis requires a great deal of experience. 

Satisfactory models for asbestos content analysis have not yet been developed, although some models based on metallurgical grain-size determination have found some utility. Estimation is more easily handled in How To Remove Asbestos From An Apartment Building situations where the grain sizes visible at about 160 x are about the same and the sample is relatively homogeneous. 

View all of the area under the cover slip to make the percentage determination. View the fields while moving the stage, paying attention to the clumps of material. These How To Remove Asbestos From An Apartment Building are not usually the best areas to perform dispersion microscopy because of the interference from other materials. But, they are the areas most likely to represent the accurate percentage in the sample. 

Small amounts of asbestos require slower scanning and more frequent analysis of individual fields. Report the area occluded by asbestos as the concentration. This estimate does not generally take into consideration the difference in density of the different species present in the How To Remove Asbestos From An Apartment Building sample. For most samples this is adequate. 

Simulation studies with similar materials must be carried out to apply microvisual estimation for that purpose and is beyond the scope of this procedure. (7) Where successive concentrations have been made by chemical or physical means, the amount reported is the percentage of the material in the "as submitted" or original How To Remove Asbestos From An Apartment Building state. 

The percentage determined by microscopy is multiplied by the fractions remaining after pre-preparation How To Remove Asbestos From An Apartment Building steps to give the percentage in the original sample. For example: Step 1. 60% remains after heating at 550 deg.C for 1 h. Step 2. 30% of the residue of step 1 remains after dissolution of carbonate in 0.1 m HCl. Step 3. 

Microvisual estimation determines that 5% of the sample is chrysotile asbestos. The reported result is: R = (Microvisual result in percent) x (Fraction remaining after step 2) x (Fraction remaining of original sample after step 1) R = (5) x (.30) x (.60) = 0.9% (8) Report the How To Remove Asbestos From An Apartment Building percent and type of asbestos present. 

For samples where asbestos was identified, but is less than 1.0%, report "Asbestos present, less than 1.0%." There must have been at least two observed fibers or fiber bundles in the two preparations to be reported as present. For How To Remove Asbestos From An Apartment Buildingsamples where asbestos was not seen, report as "None Detected." 

Auxiliary Information Because of the subjective nature of asbestos analysis, certain concepts and procedures need to be discussed in more depth. This information will help the analyst understand why some of the How To Remove Asbestos From An Apartment Building procedures are carried out the way they are. Light is electromagnetic energy. It travels from its source in packets called quanta. 

It is instructive to consider light as a plane wave. The light has a direction of travel. Perpendicular to this and mutually perpendicular to each other, are two vector How To Remove Asbestos From An Apartment Building components. One is the magnetic vector and the other is the electric vector. 

We shall only be concerned with the electric vector. In this description, the interaction of the vector and the mineral will describe all the observable How To Remove Asbestos From An Apartment Building phenomena. From a light source such a microscope illuminator, light travels in all different direction from the filament. 

In any given direction away from the filament, the electric vector is perpendicular to the direction of travel of a light ray. While perpendicular, its orientation is random about the travel axis. If the electric vectors from all the light rays were lined up by passing the light through a How To Remove Asbestos From An Apartment Building filter that would only let light rays with electric vectors oriented in one direction pass.

The light would then be POLARIZED. Polarized light interacts with matter in the direction of the electric vector. This is the polarization direction. Using this property it is possible to use polarized light to probe different How To Remove Asbestos From An Apartment Building materials and identify them by how they interact with light. The speed of light in a vacuum is a constant at about 2.99 x 10(8) m/s. 

When light travels in different materials such as air, water, minerals or oil, it does not travel at this speed. It travels slower. This slowing is a function of both the material through which the light is traveling and the wavelength or frequency of the light. In general, the more dense the How To Remove Asbestos From An Apartment Building material, the slower the light travels. 

Also, generally, the higher the frequency, the slower the light will travel. The ratio of the speed of light in a vacuum to that in a material is called the index of refraction (n). It is usually measured at 589 nm (the sodium D line). If white light (light containing all the visible wavelengths) travels through a material, rays of longer wavelengths will travel faster than those of shorter wavelengths, this How To Remove Asbestos From An Apartment Building separation is called dispersion. Dispersion is used as an identifier of materials as described in Section 4.6.

Removing Lead Paint From A Commercial Building

In cases where the examining physician determines that chelation is appropriate, you must be notified in writing of this fact before such treatment. This will inform you of a potentially harmful treatment, and allow you to obtain a second opinion. IX. Medical Removal Protection—subsection (k  read more..

Flood Prevention Tips

This is a manual on safe, healthy, green, and affordable rebuilding of water-damaged homes that will: Serve as a workbook for seminars Be distributed to people working on their own homes, volunteers, and other workers as a guide and reference manual Develop work protocols for contractors This manual  read more..

Do I Need To Worry About Lead At My Business

Do I need to worry about lead at my business? Preventing lead poisoning saves you money in the long run. You will have healthier, more productive employees. You also won't have to worry about being held responsible if a household member is poisoned by lead brought home from the workplace. Lead   read more..

Animal Damage Control

To be eligible for the State Wildlife Grants (SWG) Program each state was required to develop a Wildlife Action Plan (WAP) and submit it to the National Advisory Acceptance Team (composed of staff from the states and the U.S. Fish and Wildlife Service) by October 2005. Each Plan was required to incl  read more..

Basement Drying

Recent radio and television hype about Mold Remediation Basement Drying many times creates an unusual and undue worry about contact to this mold. In the workplace many times the employees will a credit wide ranges of symptoms do to mold. These employees will accuse their made up illness even when there is no signs of ac  read more..

Mold Remediation

So your tenants have moved out. So your tenants without giving you notice and may have moved out. Now you have the task of going in and Tenant Move Out Cleanup Mold Remediation cleaning up. There are so many scenarios on this it's unbelievable. Hopefully you had good tenants and they left the place in decent shape, however this  read more..

Emergency Board Up_Alternative To Boarding Up Wind

This handbook provides a brief overview of the types of disasters posing a potential threat to staff. NOTE: This handbook does not contain emergency procedures for cultural items. These emergency procedures are intended to assist individuals in understanding what to expect and what to do initia  read more..

How To Get The Smell Of Raw Sewage Out Of The Hous

The purpose of this publication is twofold: 1. It provides homeowners with basic information on the causes of sanitary sewer backups.2. It provides homeowners with general information on solutions that can be implemented to protect their property from sanitary sewer backups. This Sewage Cleanup How To Get The Smell Of Raw Sewage Out Of The Hous publ  read more..

Tropical Storm Damage

Have your home inspected in accordance with local building codes. Most of the roofs destroyed by tropical storms were destroyed because they were not constructed according to building codes. Seriously consider flood insurance, every Emergency Board up Tropical Storm Damage has a certain amount of flooding. Make a deta  read more..

How To Board Up Windows In A Vacant House

All licensed contractors who desire to participate in the Emergency Board-Up eligibility list shall prepare and file an application with the Fire Marshal at any time during the month of May to be reviewed for inclusion in the following fiscal year (July through June). The application shall include,   read more..