chloroform

(redirected from R-20)
Also found in: Dictionary, Thesaurus, Encyclopedia.

chloroform

 [klor″o-form]
a colorless, mobile liquid with an ethereal odor and sweet taste, used as a solvent; it is hepatotoxic and nephrotoxic when ingested. It was once used widely medicinally, such as for inhalation anesthesia and analgesia.

chlor·o·form

(klōr'ō-fōrm),
Formerly used by inhalation to produce general anesthesia; also used as a solvent.
Synonym(s): trichloromethane
[chlor(ine) + form(yl)]

chloroform

(klôr′ə-fôrm′)
n.
A clear, colorless, dense, sweet-smelling liquid, CHCl3, used in refrigerants, propellants, and resins, as a solvent, and sometimes as an anesthetic. Chloroform, once widely used in human and veterinary surgery, has generally been replaced by less toxic, more easily controlled agents.
tr.v. chloro·formed, chloro·forming, chloro·forms
1. To treat with chloroform to anesthetize, render unconscious, or kill.
2. To apply chloroform to.

chlor·o·form

(klōr'ō-fōrm)
Formerly used by inhalation to produce general anesthesia; also used as a solvent.
[chlor(ine) + form(yl)]

chloroform

A heavy, colourless, volatile liquid once widely used as a pleasant and easy general anaesthetic but now abandoned because of its tendency to cause CARDIAC ARREST and other dangerous complications including delayed liver atrophy.

chlor·o·form

(klōr'ō-fōrm)
Formerly used inhalation agent to produce general anesthesia; also used as a solvent.
References in periodicals archive ?
The new product in not only denser than R-20 batts, but it also contains more glass and is narrower and thinner, making it better suited to two-by-six wall construction.
An exception is provided, allowing a Class III vapor retarder if a wall framed with 2x4 framing has a minimum of R-10 exterior continuous insulation (R-13 + R-10) or if framed with 2 x 6 framing must have a minimum of R-15 exterior continuous insulation (R-20 + R-15).
Without the weight disadvantages of a third pane of glass, film can create two, three or even four insulating cavities that maximize light transmission and provide conservation performance ranging from R-6 to an amazing R-20 to meet the unique requirements of commercial and residential new construction and renovation projects.
Once you have more than R-20 in a roof assembly, that is, you meet the code, things pretty much don't matter.
Ultimately selecting which product and value to use depends on many factors --particularly thermal load; regardless, ASHRAE's new above-deck roof insulation standard is a good place to start, as it jumped 33 percent, from R-15 to R-20, in five of six climatic regions.
In addition to the direct target group of the companies participating in the Post-Paris Navigator, potential local partners and companies, for example via the R-20 network, are involved in the process and make initial contact possible.
Without the weight disadvantages of a third lite of glass, suspended film can create two, three, or even four insulating cavities that maximize light transmission and provide insulation performance ranging from R-6 to R-20 to meet the unique requirements of commercial new construction and renovation projects.