ISO 16961:2024 低炭素エネルギーを含む石油およびガス産業 | ページ 6

3.1.1

application procedure specification

document describing procedures, methods, equipment and tools used for coating (3.1.7) application

3.1.2

applicator

contractor (3.1.8) or subcontractor having the technical capability, knowledge, equipment and qualified personnel that is approved by the client (3.1.5) for the coating (3.1.7) processes according to specific requirements

Note 1 to entry: The requirements are given in this document.

3.1.3

C glass

glass fibre that provides greater resistance to chemicals and is used in advanced composites

Note 1 to entry: C glass is mainly used in the form of surface tissue in the outer layer of laminates used in chemical and water pipes and tanks.

3.1.4

caulking

process of applying a 98 % to 100 % solid catalysed epoxy (3.1.13) material on tank internal surfaces to fill pores/pits or to cover weld seams, lap joints, large projections, connections, etc.

Note 1 to entry: This is to provide a uniform gradual transition and smooth surfaces.

Note 2 to entry: The 98 % to 100 % solid catalysed epoxy material is referred to as the caulking compound.

3.1.5

client

party or organization for which professional services are rendered or person that receives a product

3.1.6

coat

paint, varnish or lacquer applied to surface in a single application (one layer) to form an evenly distributed film when dry

3.1.7

coating

lining

material applied to the internal surfaces of a tank to serve as a barrier to corrosion and/or product contamination

3.1.8

contractor

vendor company or business that agrees to furnish materials and/or perform specific project/services to client (3.1.5)

3.1.9

curing

chemical process of developing the intended properties of a coating (3.1.7) or polymerized product in the lining system

Note 1 to entry: Curing is generally due to a reaction between two or more chemicals (e.g. resin and curing compound).

3.1.10

dew point

temperature of a given air/water vapour mixture at which condensation starts, since its maximum water content saturation is reached at that temperature

3.1.11

dry abrasive blast cleaning

surface preparation method that uses an abrasive propelled by air pressure, centrifugal force, to clean and provide a surface profile (3.1.21)

3.1.12

dry film thickness

DFT

thickness of a coat (3.1.6) or coating (3.1.7) system in its fully cured and dry condition

3.1.13

epoxy

resin containing epoxide functional groups that allow for curing (3.1.9) by polymerization with a variety of curing agents

3.1.14

fibreglass reinforced lining

resin lining, usually polyester, vinyl ester or epoxies, into which layers of fibreglass are incorporated to enhance the lining’s structural capability, corrosion and chemical resistance performance

3.1.15

fibre mat

woven glass fibre that is used as reinforcement of the thermosetting resin [e.g. epoxy (3.1.13) ] lining to repair and/or add strength to tank bottoms

3.1.16

gel coat

final coat (3.1.6) applied over the fibreglass lining laminate to seal the laminate surface and enhance water and hydrocarbon resistance

3.1.17

holiday

discontinuity in a lining or contamination in the coating (3.1.7) film that significantly lowers the dielectric strength of the coating

Note 1 to entry: Examples of a discontinuity in a lining are a pinhole (3.1.19) , void, crack, thin spot, and inclusion of foreign material.

3.1.18

manufacturer

company responsible for the manufacture of coating (3.1.7) material(s)

3.1.19

pinhole

small film defect characterized by small pore-like flaws in the lining that will permit corrosion of the substrate under the conditions for which the lining is designed

Note 1 to entry: A pinhole can extend entirely through the film to the substrate and lead to a holiday (3.1.17) .

3.1.20

pre-production trial

application of coating (3.1.7) and inspection/testing of its properties, to confirm that the application procedure specification (3.1.1) is able to produce a coating with the specified properties

3.1.21

surface profile

micro-roughness of a surface

Note 1 to entry: Surface profile is generally expressed as the average height of the major peaks relative to the major valleys, and sometimes referred to as amplitude.