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

0 1 2 3 4 5 6 7 8 9 #


BIOHAZARD

A biological material that causes harm to living organisms.


BIOLOGICAL AEROSOLS

Tiny droplets containing biological contaminants (spores, bacteria or their by-products) that become airborne through human (coughing, sneezing, talking) or mechanical (HVAC) means.


BIOLOGICAL CONTAMINANTS

Unwanted agents (disease or allergy causing) that are derived from or are living organisms (including viruses, bacteria, fungi, and protozoa, arthropods and mammal and bird antigens), that can be inhaled and can cause many types of bodily reactions


BIOPOLLUTANTS

Organisms, or derivatives thereof, which are living or have lived, and which are unwanted in the earth_s air,


BIOSOL

see _biological aerosol_


BIOSTAT

A substance, usually chemical, that prevents the growth of living, usually micro organisms but does not necessarily kill them or their spores.


BLEACH

Bleach products for home use are normally 5.25 – 6% solutions of sodium hypochlorite (NaClO); Chlorine bleach also may be found in bathroom cleansers, dish washing compounds, and powdered laundry detergents


BLEEDING

The penetration of a pigment or residue from a substrate through a top layer of paint. The diffusion of colours or dyes within a material, often caused by wetting.


BLIGHT

1. A plant disease characterized by general and rapid browning of leaves, flowers, and stems, resulting in their death. 2. The bacterium, fungus, or virus that causes such disease.


BLISTERING

Small bubbles or bulges in a finish coat of plaster or paint, caused by entrapped moisture, heat, or applying a coating over an improperly prepared surface.