Key notes:

Definitions:

STANDARD:	Document established by concensus/ agreement and approved by recognised body (class/third parties )
	Ex: Yard standard/ Subcon standard approved by Owner & Class, or JIS/AISI
HARMONISED STANDARD:	Document established for interchangability of products, processes, services
	Ex: ISO/IACS/IEC
CODE OF PRACTICE, or Set of Manufacture rule	Procedure for design/manufacture/installation/utilization.
	CAN BE A STANDARD, PART OF STANDARD OR INDEPENDENT OF A STANDARD
	Ex: ASTM/ ASME/ ANSI/ DIN/ JIS
REGULATION:	Ligislative rules adopted by authority
	Ex: IMO/ILO/MARPOL/OCIFM
SPECIFICATION:	Meanningful data supporting stating needs & expectation with obligatory
	Ex: Contract specification/ project specification
PROCEDURES:	Established specified way/process activites following Spec/Code/Standard
	Ex: WPS, PWHT, Hydrotest
INSTRUCTION:	Established description steps/activites following Spec/Code/Standard/Procedure.
	Ex: Vendor instruction
QUALITY PLAN:	Which procedure/ Who apply/Which project/When process
	Ex: ITP, NDT plan

WPS/WPQR:

pWPS made for qualifying a Weld procedure weld test

WPS accessed by 3 pers (welder/Inspectors/NDT party)

Essential Variables –> affect to Joint Strength/Ductility

Additional variables (EN) –> affect to Toughness and Hardness

Supplementary variables (ASME/AWS) –> affect to Toughness (not refer to Hardness)

Welder Cert expired automatically in case of over 6 months without welding activities.

Tack-welder to be qualified if tack-weld incorporated with final welds

Tack-welder not need to be qualified if tack-weld is temporary attached (Exclude: Heavy lift eyes tack-welds, Thicker (>50mm) section or Special material such as Casting, Forging, Duplex ect., those are seriously affect by Heat).