Section 5 Validity of approval certificate
Clasification Society 2024 - Version 9.40
Clasifications Register Guidance Information - Guidance for Approval, Manufacture, Testing and Certification of High Manganese Austenitic Steel for Low Temperature Service, July 2022 - Chapter 3 Approval of a Works for the Manufacture of High Manganese Austenitic Steels - Section 5 Validity of approval certificate

Section 5 Validity of approval certificate

Parent topic: Chapter 3 Approval of a Works for the Manufacture of High Manganese Austenitic Steels

5.1 Initial approval

5.1.1 On satisfactory review of the submitted approval test report, the materials specialist will enter the manufacturer onto the Lloyd’s Register ‘LR Approvals’ portal and an initial approval certificate will be issued.

5.1.2 The approval certificate will state the approved product type (i.e. plate, sections), the grain refining elements, the steel grades and the maximum thickness. If specified through-thickness properties are approved, the appropriate details will be stated.

5.1.3 The initial approval certificate will have a validity of three years.

5.2 Extension of the scope of approval

5.2.1 Manufacturers who intend to extend their scope of approval will be required to carry out additional testing to cover the extended scope. The test plan is to be agreed between the manufacturer and LR.

5.3 Re-approval of works

5.3.1 For the validity to be renewed for a further three years, the Surveyors should undertake a periodic inspection in accordance with Ch 1 Procedure 1-1 - Periodic Inspection of Approved Works in MQPS Book B. To ensure continuity, this should be carried out within six months prior to the approval expiry date.

5.3.2 It is a Rule requirement that during material surveys the works will be subject to regular visits to confirm continued compliance with the original approval. The frequency of visits will depend on the frequency of material surveys. Records of these visits will be kept by the Surveyors.

5.3.3 Manufacturers that have not produced products under LR survey during the approval period must either conduct new approval tests (according to Ch 3 procedure 3-2, 5 Approval test programme and Ch 3 procedure 3-2, 6 Specific approval test results in MQPS Book C) or contact LR to agree on any additional requirements to continue approval.

5.3.4 Where a manufacturer physically moves the location of an approved works from the approved location to a new site, the manufacturer will be required to follow the initial approval process in full unless they can present a satisfactory case to LR that this is not required.

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