Figure 2. Division Definition Group Definition The explosive characteristics of the air mixtures of gases, vapors, or dusts vary with the specific material involved. Materials have been placed in groups based on their i gnition temperatures and explosion pressures.igure 2. Division Definition Group Definition The explosive characteristics of the air mixtures of gases, vapors, or dusts vary with the specific material involved. Materials have been placed in groups based on their i gnition temperatures and explosion pressures.
Rectal bleeding is bright red blood in or on a bowel movement, on toilet tissue after wiping, or in the toilet water.You may or may not have some pain when you have the bowel movement. If you have external hemorrhoids, you may have pain when you sit.ectal bleeding is bright red blood in or on a bowel movement, on toilet tissue after wiping, or in the toilet water.
Vomiting blood is a common symptom that may indicate bleeding in the upper GI tract (UGIB). Vomit that resembles coffee grounds usually means that blood has been oxidized by acid in the stomach so that the iron in the blood turns black, and is a sign that bleeding is either in a small quantity or has stopped. Vomiting red blood usually means the bleeding is recent or more severe.