8.103. For shuttle type equipment used for aseptic filling, the area between parison cutting and mould sealing should be covered by a flow of filtered air to provide Grade A conditions at the critical zone. The equipment should be installed in at least a Grade C environment, provided that Grade A/B clothing is used. The filling environment should meet Grade A for viable and non viable limits at rest and the viable limit only when in operation. (EUGMP附录一)