GLOSSARY

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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MOISTURE METER

An electronic moisture sensing device used to measure the internal moisture percentage of various construction materials, such as wood, gypsum board, masonry, etc.


MOISTURE REGAIN

The amount of moisture an oven-dried fibre or material absorbs, when exposed to a standard test atmosphere of 70oF (21oC) and 65% RH, expressed as a percentage. Typical moisture regain values are: wool, 15%; nylon, 4%; polyester, 0.4%.


MOISTURE VAPOUR EMISSION RATE

The time rate (time) at which moisture in a material changes from a liquid state to a vapour or gas.


MOLECULAR WEIGHT

Weight (mass) of a molecule, based on the sum of the atomic weights of the atoms that make up the molecule.


MOLECULE

The smallest unit into which a substance may be divided and still retain the characteristics of that substance.


MORTGAGEE

The lender from whom a mortgage is obtained.


MOULD

A common term for filamentous fungi, often seen as a superficial or _woolly_ growth of long chains of fungi cells formed on damp organic materials. Toxigenic moulds may produce a potentially harmful substance called a mycotoxin.


MSDS

see _Material Safety Data Sheet_


MULTIPLE CHEMICAL SENSITIVITY

(MCS) – A considerable body of anecdotal data suggests the possibility that a small segment of the population has become sensitized to chemicals in the environment. They appear to suffer repeated acute reactions upon exposure.


MUTAGEN

A material that alters a cell_s genetic information (DNA) and may lead to undesirable inherited conditions in progeny.