A player who is sent off: 1  before submission of the team list can not be named on the team list in any capacity. 2  after being named on the team list and before kick-off may be replaced by a named substitute, who can not be replaced; the number of substitutions the team can make is not reduced. 3  after the kick-off can not be replaced.
Corrosion of steel is strongly affected by the amount of oxygen in the water and the temperature of the water. The effects of oxygen and temperature on low-carbon steel pipes with water flow are indicated in the diagram below: 1 mm = 0.03937 in. T(oF) = [T(oC)](9/5) + 32.
A corrosive substance is one that will destroy and damage other substances with which it comes into contact. It may attack a great variety of materials, including metals and various organic compounds, but people are mostly concerned with its effects on living tissue: it causes chemical burns on contact.