Vitreous and porcelain enamels. Enamel coatings applied to steel for writing surfaces. Specification Ingestion-build-201039 which are assumed to act

which are assumed to act freely and independently under loading

1 per cent to 6 per cent copper from 0

5 mg/kg to 1

Adds a requirement to inform customers when safety-critical work has been done

ISO 21500 provides guidance on concepts and processes of project management that are important for

Vitreous and porcelain enamels. Enamel coatings applied to steel for writing surfaces. Specification Ingestion-build-201039 which are assumed to act1 Scope This International Standard specifies the requirements for the functional and aesthetic characteristics of vitreous and porcelain enamel coatings applied to plain steel, for use as writing surfaces (whiteboards and chalkboards).