Free AS Standards AS 4822:2018 pdf free AS 4822:2018 pdf free.External field joint coatings for steel pipelines. 3.1 APPLICATION PROCEDURE SPECIFICATION (1PS) Prior to start of application and any agreed PQT and/or PPT (see Clauses 3.3 and 3.5), the APS shall be prepared (that... 09-01-2021 Get More