Replace old and dangerous
Substitution of calcium-containing insulation and insulating systems
VitroSilK® - the calcium-free silicate silk glass fiber
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substitution
(lat.: substitutio – substitution)
In Germany, the handling of hazardous substances – including activities where hazardous substances may be created or released – is subject to the Hazardous Substances Ordinance (GefStoffV); you can download the current version here .
TRGS 561 (Technical Rules for Hazardous Substances; download here ) explicitly covers " thermally stressed chromium-alloyed industrial components " on which chromium(VI) compounds can form and be deposited in insulating materials or assembly pastes.
If contamination with Chromium(VI) is present or cannot be ruled out , the employer must carry out a risk assessment before commencing work, examine suitable substitution options and implement these as a priority .
In addition, the cross-industry protective measures and measures for dust prevention according to sections 4.1 and 4.2 as well as the special requirements of section 5.9.3 of TRGS 561 must be applied.
After removing the thermal insulation from the exhaust pipe, significant residues of the carcinogenic chromium (VI) compound calcium chromate are visible .
Reapplying the existing high-temperature insulation would lead to the re-formation of chromates .
Substitution (e.g., the use ofcalcium-free insulation of Kavarmat sc ) is technically feasible and therefore applicable .
Image examples of successfully implemented substitutions of calcium-containing high-temperature insulations and systems with calcium-free alternatives. Insulation (mats, elements, cushions, etc.) made of
VitroSilK® - High-temperature fiber mats and fabrics
in accordance with the innovative Cleansulation®Technology by Kavarmat® and SIB BV (Duratras®)
"Before/after pictures"
For more information, please click on the individual images.
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