ISO 393-4:1986

Specifies requirememts for asbestos-cement trapezoidal section sheets used mainly for roofing and cladding. It also specifies test methods to check conformity with these requirements, together with requirements for marking and acceptance conditions. It does not apply to corrugated sheets, to asymmetrical section corrugated sheets or to corrugated or asymmetrical section "short sheets", which are covered as indicated in clause 0.