I had some blood drawn last Wednesday to be tested for celiac disease. How long should I wait to call them. Usually they call me if anything is wrong but I haven't heard anything. I suppose the results could be negative and I have nothing to worry about but either way I want to know.
NIST is a non-regulatory federal agency founded in 1901 within the U.S. Commerce Departmentâs Technology Administration whose mission is to develop and promote measurement, standards, and technologies to enhance productivity, facilitate trade, and improve the quality of life of Americans.ith NIST traceable calibration, any measurements taken with a certified thermometer will have: 1  An unbroken chain of measurements that leads back to NIST maintained standards. 2  Known and documented uncertainties for each step in the chain.
NIST uses a temperature of 20 Â°C (293.15 K, 68 Â°F) and an absolute pressure of 1 atm (14.696 psi, 101.325 kPa). This standard is also called normal temperature and pressure (abbreviated as NTP). The International Standard Metric Conditions for natural gas and similar fluids are 288.15 K (15.00 Â°C; 59.00 Â°F) and 101.325 kPa.