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Microprocessor-based high current test set 1989 Battery impedance test equipment (BITE) 1990 Automatic 10kV insulation power factor test set 1990 Microprocessor-based protective relay test set 1994 DSP-driven watthour meter test set 1996 Windows-based Testing Software Program 1999 Time-domain reflectometer with TX Null technology (TDR) 2000
Nomex Type 410 paper was the first Nomex paper developed and one of the higher volume grades made, mostly for electrical insulation purposes. Wilfred Sweeny (1926–2011), the DuPont scientist responsible for discoveries leading to Nomex, earned a DuPont Lavoisier Medal [ 4 ] in 2002 partly for this work.
The limiting oxygen index (LOI) is the minimum concentration of oxygen, expressed as a percentage, that will support combustion of a polymer. It is measured by passing a mixture of oxygen and nitrogen over a burning specimen, and reducing the oxygen level until a critical level is reached.
In his first year of business, McConnell grossed $342,000; his profit was $11,000. Throughout the late 1950s and 1960s, he continued to add processing facilities. In 1966, he started sharing his profits with the people he worked with. In 1968, Worthington Industries made its first public stock offering of 150,000 shares at $7.50 per share.
Champion International was a large paper and wood products producer based since 1980 in Stamford, Connecticut. [1] It was acquired by International Paper in 2000.. From 1893 it had been based in Hamilton, Ohio, expanding to plants in Texas and Western North Carolina by the 1930s.
The pH value of paper indicates the residual acidic/alkaline chemicals in pulp, or atmospheric pollutants. It is an environmental KPI parameter in paper making. Acidic paper made from wood-based pulp that still contains lignin will deteriorate over time by becoming brittle and turning yellow. [1]
The Texas Workers’ Compensation Act states that companies that employ 15 or more workers are required to enact comprehensive drug reduction policies, per the Underwood Law Office, and a written ...
Oxygen scavengers or oxygen absorbers are added to enclosed packaging to help remove or decrease the level of oxygen in the package. They are used to help maintain product safety and extend shelf life. [1] There are many types of oxygen absorbers available to cover a wide array of applications. [2] [3]