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.
A hot flush is a vasomotor or blood vessel symptom that can vary in intensity and duration. A typically hot flush will last for between 30 seconds and 10 minutes. We may experience an unannounced brief feeling of intense heat that makes our face and neck feel red and hot and possibly look blotchy. Some women report what feels like a sudden rush of blood from their toes to the top of their head.