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p-Phenylenediamine (PPD) is an organic compound with the formula C 6 H 4 (NH 2) 2. This derivative of aniline is a white solid, but samples can darken due to air oxidation. [ 1 ] It is mainly used as a component of engineering polymers and composites like kevlar .
The tine test is similar to the Heaf test, although the Mantoux test is usually used instead. There are various forms of the tine tests which usually fall into two categories: the old tine test (OT) and the purified protein derivative (PPD) tine test. Common brand names of the test include Aplisol, Aplitest, Tuberculin PPD TINE TEST, and ...
Voluntown is a town in New London County, Connecticut, United States.The town is part of the Northeastern Connecticut Planning Region.The population was 2,570 at the 2020 census. [1]
Stratford is the location of two Superfund sites designated by the United States Environmental Protection Agency. These include a variety of locations related to asbestos dumping and disposal by Raymark Industries, whose manufacturing was previously headquartered in Stratford, and the former Stratford Army Engine Plant.
Waterford is a census-designated place (CDP) comprising the primary village in the town of Waterford, New London County, Connecticut, United States.It is in the southeastern part of the town, bordered to the east by the city of New London.
The Borough of Newtown occupies about 1,252 acres (5.07 km 2) (or roughly two square miles) in the central part of town.Incorporated in 1824 by an act of the Connecticut General Assembly, it is one of only nine remaining boroughs in the state.
Goshen is in central Litchfield County and is bordered to the east by the city of Torrington.According to the United States Census Bureau, the town of Goshen has a total area of 45.2 square miles (117.0 km 2), of which 43.6 square miles (113.0 km 2) are land and 1.5 square miles (4.0 km 2), or 3.44%, are water. [2]
As of 2020, the ZIP Code has an average family income of $74,597, slightly below the Connecticut average of $79,855; the poverty rate is 14.5%, higher than the Connecticut total of 9.8%; 34.2% of the population has a Bachelor's degree or higher, below the state total of 40.0%; the ZIP code has an employment rate 65.4%, higher than the ...