Controllo spessori
Procedural requirements for thickness measurements
RINA Rules 2021, Part A: Classification and Survey Chap 2 appendix 2, Thickness Measurements: Extent, Determination of Locations and Acceptance Criteria
Calibro a pettine per la misurazione dello spessore della pittura deposta, ancora allo stato umido.
Apparecchiatura ad ultrsuoni per misurazione di spessore della pittura a secco
2.3.2 Survey meeting (coordinamento dei partecipanti)
- attending Surveyor,
- the master of the ship,
- the Owner's representative and
- the thickness measurement firm's rep.
2.3.4 Approval of thickness measurement firms
Thickness measurements are to be carried out by a firm approved by the Society in accordance with the "Rules for the CertificThickness measurements are to be carried out by a firm approved by the Society in accordance with the "Rules for 2.3.5 Monitoring of the thickness measurement process on boardCertification of Service Suppliers"ation of Service Suppliers"
The Surveyor will decide the final extent and location of thickness measurements after overall survey of representative spaces on board.
Based on findings, the Surveyor may require additional thickness measurements to be taken.
The Surveyor will direct the gauging operation by selecting locations.
2.3.7 Thickness measurement report (content)
The report is to give
- the location of measurements,
- the thickness measured and the corresponding original thickness,
- the date when the measurements were carried out.
- the type of measuring equipment,
- the names and the qualification of the operators and their signatures.
- The report is validated by the Surveyor.
2.3.9 Evaluation of longitudinal strength
Ship's longitudinal carried out after the ship reached 10 years of age
Ship's longitudinal carried out after the ship reached 10 years of age
Conditions for surveys
The Owner is to provide the necessary facilities for the safe execution of the surveys
Esempio da DNV
All spaces shall be made safe for
access, i.e. gas
freed, ventilated and illuminated, and prepared for the surveyor to examine the
structure in a safe and practical way. … means for access shall be provided:
- permanent staging and passages through structures
- temporary staging and passages through structures
- lifts and moveable platforms
- hydraulic arm vehicles such as conventional cherry pickers
- boats or rafts
- portable ladder
- other equivalent means.
