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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IODINE

A non-metallic halogen that is used as a disinfecting agent.


IODOPHOR

A complex of iodine and a surfactant that releases iodine gradually and serves as a disinfectant.


IONIZATION

The presence or absence of standard numbers of electrons on a particular atom or molecule. If the ion is positive, there are fewer than the required number of electrons to form a neutral or _balanced_ atom or molecule.


IRRITANT

A substance which, by contact in sufficient concentration for adequate time, will cause an inflammatory response or reaction of the eye, skin or respiratory system. The contact may be a single exposure or multiple exposures.


ISO

see _International Standards Organization_


JACK RAFTER

A rafter that is shorter than the usual length of the rafters used for the roof, for example the shorter rafters which are used towards the end of a hip roof or dormer.


JOIST HANGER

A fabricated metal bracket or strap used to attach and support the end of a joist to a header, beam or girder.


JUST IN TIME

A principal of supply goods only just before they are needed. Therefore no stock holding by the purchaser is required.


kg – Kilogram.

A metric unit of weight, about 2.2 pounds. see _g/kg,_ _g,_ and _mg_


KILN DRIED

Dried or seasoned in an enclosure in which excess moisture has been driven off by heating, in contrast to air drying: used to bring lumber to some predetermined moisture content prior to milling or other use.