-- card: 2193 from stack: in.STK
-- bmap block id: 2401
-- flags: 0000
-- background id: 2575
-- name: 
----- HyperTalk script -----
on openCard
  set scroll of card field 1 to zero
end openCard


-- part 2 (field)
-- low flags: 00
-- high flags: 0007
-- rect: left=30 top=56 right=251 bottom=290
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 22
-- text size: 10
-- style flags: 0
-- line height: 13
-- part name: 


-- part 3 (button)
-- low flags: 00
-- high flags: A004
-- rect: left=30 top=254 right=303 bottom=69
-- title width / last selected line: 0
-- icon id / first selected line: 14953 / 14953
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Return
----- HyperTalk script -----
on mouseUp
  visual effect dissolve
  go to card id 5605
end mouseUp




-- part 4 (button)
-- low flags: 00
-- high flags: A004
-- rect: left=74 top=254 right=303 bottom=116
-- title width / last selected line: 65535
-- icon id / first selected line: -15744 / 49792
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Quit
----- HyperTalk script -----
on mouseUp
  doMenu "Quit Hypercard"
end mouseUp



-- part 11 (button)
-- low flags: 00
-- high flags: 2000
-- rect: left=376 top=156 right=238 bottom=424
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
  go to card id 6743
end mouseUp




-- part contents for card part 2
----- text -----
       In order to understand the hazards of confined spaces, its important to have a basic understanding of human toxicology.  Toxicity is the relative ability of a substance to produce a harmful effect in an organism. Toxicology is the study of these substances and thier effects.

       Many if not all chemicals will produce a harmful effect if administered via the right route of exposure and in the proper dose or concentration.  There are three principal routes of exposure-  Ingestion, Skin absorption, and inhalation.  Exposure by inhalation is the most severe  as far as confined space safety is concerned.

       If oxygen concentrations fall below 19.5% there is an increased risk of Anoxia.  The interaction between oxygen and the human body occurs in the lungs. Look at the diagram of the lungs to the right.  The human lungs have 50-100 square meters of surface area for contact to facilitate exchange of gases with the blood stream.  The exchange of these gases is accomplished  via tiny sacs called "alvioli".  Click on the right lung to see an exploded view.