Beech ovens E Series Installation And Operation Manual page 65

Beech Ovens Page 65 2/09/2019 (C)
E-Series Manual (R4) Confidential and Proprietary
9 . . . PHYSICAL AND CHEMICAL PROPERTIES
Odor
None
Melting point
> 1330°C
Flammability
None
Explosive properties
None
Length weighted geometric mean diameter
> 1.5 µm
10 . . . STABILITY AND REACTIVITY
Upon heating above 900°C for sustained periods, this amorphous material begins to transform to mixtures of
crystalline phases. For further information please refer to section 16.
11 . . . TOXICOLOGICAL INFORMATION
. . . Irritant properties
When tested using approved methods (Directive 67/548/EEC, Annex 5, Method B4), fibers contained in this
material give negative results. All man-made mineral fibers, like some natural fibers, can produce a mild irritation
resulting in itching or rarely, in some sensitive individuals, in a slight reddening. Unlike other irritant reactions this
is not the result of allergy or chemical skin damage but is caused by mechanical effects.
. . . Respiratory toxicity
CMS wools have been tested for their biopersistence using methods devised by the European Union. The
biopersistence values measured exonerate CMS wools from carcinogen classification under the criteria listed in
nota Q of Directive 97/69/EC.
Subchronic inhalation studies on rats with CMS wools at high concentration (150 f>20µm/ml) for 90 days with
follow up to one year showed neither sustained inflammation nor cell proliferation. All parameters studied returned
rapidly to baseline levels on cessation of exposure.
In a lifetime carcinogenicity test, rats were exposed by inhalation for two years (5 days a week, 6 hours a day) to
CMS wool at 200 WHO f/ml. There was neither fibrosis nor carcinogenic response.
After service, CMS wools can contain various crystalline phases including some forms of silica (see section 16).
CMS samples kept at 1000°C for two weeks were not cytotoxic to macrophage-like cells at concentration up to
2 2
320µg/cm . In the same test, samples of pure crystalline quartz were significantly active at 20 µg/cm .
12 . . . ECOLOGICAL INFORMATION
No adverse effects of this material on the environment are anticipated.
13 . . .DISPOSAL CONSIDERATIONS
Waste from this product is not classified as "hazardous" or "special" under European Union regulations. Disposal
is permitted at landfills licensed for industrial waste. Check for local regulations which may apply. To prevent
materials becoming airborne, a covered container or plastic bagging is recommended.