Temperature Measurement Standards. ASTM's temperature measurement standards provide the material and property specifications, as well as guides for the testing, calibration, and use of laboratory, industrial, and clinical instruments used in the determination of thermal variables, particularly temperature.
A bulging disc occurs more often as we age or as repetitive activities weaken the the disc. Herniated discs are more often specifically related to trauma/injury sustained and are more acute (sudden) in onset.
When the material bursts through the outer lining of cartilage, it is called a ruptured disc. For more information read what does a herniated disc look like. The herniated disc is the cause of lower back pain, mid back pain and constant back and leg pain.A herniated disc causes pain, loss of feeling, tingling or muscle weakness.hen the material bursts through the outer lining of cartilage, it is called a ruptured disc. For more information read what does a herniated disc look like. The herniated disc is the cause of lower back pain, mid back pain and constant back and leg pain.