It's the abbreviation for Mean Corpuscular Hemoglobin. This is a measure for how much hemoglobin per red blood cell count. MCH stands for Mean Corpuscular Hemoglobin. It is a measure of the average amount of hemoglobin in each red blood cell. 9 people found this useful.
Human Interface Device (HID) Definition - What does Human Interface Device (HID) mean? A human interface device (HID) is a method by which a human interacts with an electronic information system either by inputting data or providing output. A myriad of HID devices exist. The most common are the keyboards, mice, computer speakers, webcams and headsets.
1 For more information www.ul.com/codeauthorities. UL and the UL logo are trademarks of UL LLC Â© 2015. Content reprinted from ULâs The Code AuthorityÂ® newsletter, Issue 1, 2014. This material may not reflect changes that have occurred since its original publication. Class A, B, and C Roof Ratings. Helpful hints for achieving code compliance. Questions often arise about the. construction needed to achieve a Class A, B, or C fire rating for a roof assembly. The information needed to achieve code. compliant installations is included below.