BS 6374-4:1984

Foreword
Committees responsible
Specification
Section one. General
1.1 Scope
1.2 Definitions
1.3 Exchange of information
1.4 Compliance
Section two. Design, fabrication and surface finish
                of equipment to be lined
2.1 General
2.2 Design of metal equipment to be lined
2.3 Fabrication of metal equipment to be lined
2.4 Design of concrete equipment to be lined
2.5 Construction of concrete equipment to be lined
Section three. Selection and quality of linings
3.1 Selection of lining
3.2 Quality of lining
3.3 Continuity of finished linings
Section four. Method of lining
4.1 Surface preparation
4.2 Lining process
Section five. Inspection and testing
5.1 Responsibility for inspection and testing
5.2 Inspection
Section six. Methods of test
6.1 Continuity testing
Section seven. Rectification of faults in fully cured
                linings
7.1 General
Section eight. Storage, handling, transportation and
                installation
8.1 General
Appendices
A Characteristics of lining materials specified in
     3.1
B Continuity testing
Figures
1 Pipework details
2 Weld profile details: butt welds
3 Weld profile details: external corners and edges
4 Weld profile details: internal corners and edges
5 Weld profile details: concave heads
6 Weld profile details: flanges

Specifies requirements for the design and fabrication of equipment to be lined and, the application and inspection of the lining along with provisions for any repairs. It applies to cold curing thermosetting resins. Guidance is also given on the properties of typical linings of this type and their application.

This Part of BS 6374 specifies requirements for the lining of equipment for the process industries using cold curing thermosetting resins.

It includes requirements for the choice of lining and its application and also requirements for subsequent inspection of the lining and the rectification of faults. It applies to equipment fabricated in metal or concrete.

The lining materials considered include epoxies, polyesters and furanes. Although not thermosetting resins, liquid elastomeric linings (such as polyurethanes) and solvated elastomeric linings (such as polychloroprene), are included since the same application techniques are used.

NOTE 1 The resins may contain fillers and/or reinforcing agents.

NOTE 2 The linings may be applied at the applicator’s works or on site.

Requirements for design and fabrication of the equipment and the state of preparation necessary for the surfaces to be lined are specified in Section 2. Requirements for storage, handling, transportation and installation of the lined equipment are specified in Section 8.

This Part of BS 6374 does not apply to paint coatings as dealt with in BS 5493.

NOTE 3 The titles of the publications referred to in this standard are listed on the inside back cover.