Search Results for survey

...Various testing methods and techniques may be used on underground pipelines during the course of field surveys. DATA ASSEMBLED BEFORE STARTING A FIELD SURVEY. Before any field survey, the corrosion engineer should gather as much information as possible about the pipeline to be studied. This may...

...PURPOSE The purpose of the adjustive survey is to confirm that the cathodic protection (CP) system continues to operate meeting its objective or, if not, to adjust it to achieve a CP criterion. If this cannot be achieved within the capacity of the CP system, a program is then developed...

...INTRODUCTION The purpose of the commissioning survey is to confirm that the new cathodic protection (CP) equipment meets the design specifications to energize the CP system and to adjust it to achieve a CP criterion. If this cannot be met within the design capacity of the CP system, a program...

...INTRODUCTION The purpose of a close interval structure-to-electrolyte potential survey (CIS) procedure is to outline a process that will obtain a more representative series of potentials throughout the structure to evaluate the criteria for cathodic protection, to identify local deficiencies...

... the maximum benefit from the installed protective coating systems and ensure that the degradation of the substrate does not lead to imminent safety hazards or interruption of operations. The first step of this maintenance action is typically a condition survey. Unfortunately, too often this survey consists...

... attributed to the following: Poor cargo stowage Structural weaknesses (age-related and damage from operations, e.g. berthing/groundings) Corrosion and fatigue As a result of these, in 1993 guidelines were introduced for an enhanced survey program (ESP) of inspections/surveys and was adopted by the 18th...

...All cathodic protection site surveys require manual labor, with instrument and/or human errors often skewing results. In fact, data points to almost 90% of survey errors being introduced by humans due a variety of factors including physical stress, lack of proper knowledge or training, improper...