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.
These swollen blood vessels in the rectal area can start bleeding, especially if poo is hard. Blood seen on toilet paper is likely to be streaky. Piles may feel itchy. Anal fissure. This is a small and painful tear in the anal area. Blood from anal fissures is likely to be bright red. Pain and bleeding may continue after a bowel movement. Anal fistula.