THA/661
WTO/TBT
TH Thaïlande
  • 77 - Métallurgie
2022-05-30
2022-04-04

Hot-Dip Zinc-Coated Cold Reduced Flat Steel (ICS 77.140.50)

Draft Ministerial Regulation on Hot-Dip Zinc-Coated Cold Reduced Flat Steel (TIS 50-25xx (20xx) ; (36 page(s), in Thai)

The draft ministerial regulation mandates hot-dip zinc-coated cold reduced flat steel to comply with the standard TIS 50-25xx (20xx)

TIS 50-25xx (20xx) covers:

- Hot-dip zinc-coated cold reduces flat steel coated by substance mainly composed of zinc to improve rust protection properties and may be processed by chemical treatment, oil coating for more varied applications, in form of sheets, strips and corrugated sheets.

- Hot-dip zinc-coated cold reduced flat steel with a nominal thickness up to 3.20 mm.

- Hot-dip zinc-coated cold reduced flat steel corrugated sheet with a minimum thickness of 0.11 mm, with pitch of 76 mm and depth of 18 mm (large corrugated), and pitch of 32 mm and depth of 9 mm (small corrugated).

TIS 50-25xx (20xx) excludes:

- Hot-dip zinc-coated cold reduced flat steel contained with zinc-ferrous alloy layer (galvanneal)

- Hot-dip zinc-coated cold reduced flat steel for automobile uses, which are already developed as industrial products standards.

- Hot-dip zinc-coated cold reduced flat steel alloy with other metals, which are already developed as industrial products standards, such as hot-dip zinc-5% to 13% aluminium-2% to 4% magnesium alloy-coated flat steel

TIS 50-25xx (20xx) specifies scope, definitions, types, grades and surface finishes, dimensions and normative tolerances, chemical compositions, requirements, marking and labelling, sampling and criteria for conformity, and testing.