Proclamation - Fair Housing Month 2017. The Washington County Board of Commissioners proclaims April 2017 as Fair Housing Month. Join CPO 4M at their April meeting. 7 p.m., Wednesday, April 26 / Funding for local police services in the Metzger area are on the ballot this May. Find out the details from your Sheriff's Office. Plus, get an update on services and projects from Tualatin Valley Water District. View this news article.
Carbon black (Color Index International, PBK-7) is the name of a common black pigment, traditionally produced from charring organic materials such as wood or bone. It appears black because it reflects very little light in the visible part of the spectrum, with an albedo near zero.
Carbon black is mainly used as a reinforcing filler in tires and other rubber products. In plastics, paints, and inks carbon black is used as a color pigment. The current International Agency for Research on Cancer (IARC) evaluation is that, Carbon black is possibly carcinogenic to humans (Group 2B).he high tinting strength and stability of carbon black has also provided use in coloring of resins and films. About 20% of world production goes into belts, hoses, and other non-tire rubber goods. The balance is mainly used as a pigment in inks, coatings and plastics.