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INSPECTION

We doing inspection work in MNC companies


TRAINING

We doing inspection work in MNC companies


CERTIFICATION

We doing inspection work in MNC companies

BGAS

NTS is best training centre for bgas course in chennai, tamilnadu, india. ndt courses in chennai, ndt courses in tamilnadu.

bgas course in chennaiWe NTS training centre for bgas giving a best training for bgas course in chennai, tamilnadu, india. ndt courses in chennai, ndt courses in tamilnadu. The BGAS-CSWIP Painting Inspection qualification has traditionally allowed candidates with or without previous experience to gain entry into the Paint Inspection Industry. This comprehensive course is made up of modules which include corrosion, the importance of surface preparation, surface contaminants and tests; paint constituents and technology; solutions and dispersions; drying and curing properties and performance; specified painting conditions; cathodic protection; holiday/pinhole detection; paint-application methods; paint/paint film testing; paint identification; metal coatings; paint faults; colour; inspection methods; specification requirements; health and safety and working practices. To get the knowledge about this you can reach us NTS, one of the best BGAS training centre in Chennai.

INSPECTION


A. General

Painting cannot be adequately inspected by visual observation of the final product because a poor paint job often looks the same as a good one. Early failures due to poor workmanship often occur after the work has been completed and has been paid for. It is necessary; therefore, to inspect the work as it progresses if there is to be any reasonable assurance that a paint job was completed as specified.

The paints used with this sophisticated system are subject to some unique application problems not found when using conventional paints. To provide competent inspection of the operations, the inspector must receive special training regarding the use of these paints and the inspection procedures.

B. Records

The inspector should keep a daily log containing pertinent information concerning the painting and related operations. A complete record will be valuable to the inspector and the engineer if disputes arise as the work progresses and is also essential for any future evaluations of the painting.

In addition to the standard project information (project number, location, contractor, etc.), the record should include the following where applicable:

1. General Information
  • Notes on safety, traffic protection, etc.
  • Cleaning equipment used (wheelabrator, sand blast, etc.)
  • Abrasive used (river sand, silica sand, shot, grit, etc.)
  • Notes on cleaning procedures (removal of dust, grease, etc.)
  • Paints to be used (manufacturer, batch numbers, etc.)
  • Paint mixing and thinning procedures used (agitated pot, hand mixing, amount of thinning, etc.)
Application equipment used (airless spray, conventional spray)
2. Daily Details
  • Weather conditions (ambient temperature and humidity, sky conditions, wind, etc.)
  • Notes on surface preparation (area cleaned, general surface condition, any unusual phenomenon
  • Surface temperature at time paint was applied
  • Location on structure of area painted
  • Paints applied (batch numbers, thinning, etc.)
  • Dry film thickness measurements (test area description, point thickness values, average thickness)
  • Primer curing time allowed before topcoating
  • Application problems encountered (dry spray, bubbling, etc.)
  • Corrective actions taken to avoid application problems or to make repairs
C. Inspector Duties

1. General: Painting of structural steel and miscellaneous steel can be performed in preapproved shops only (see IM 568, Appendixes A & B). The inspector's primary job is to recognize and report sub-specification work. Unfortunately, it cannot always be assumed that the painter is completely knowledgeable about the paints to be applied and the specifications governing their application. Discussion with the contractor before the work begins, to clarify such things as degree of surface preparation, curing times, film thickness requirements and corrective actions to be taken if problems arise, will help avoid inspection difficulties.

Experience and good judgement are of particular importance for inspection of this painting system. Technical assistance from the Central Materials Office should be sought if unusual problems arise.

2. Summary of Responsibilities: The major responsibilities of the painting inspector may be summarized as follows:
  • Record keeping
  • Approval of traffic control procedures
  • Acceptance of paints
  • Approval of surface preparation before paint is applied
  • Checking cure of primer before topcoating or shipment from fabricating shop.
  • Visual inspection of each coat of paint for defects
  • Determining film thicknes

Inspection Equipment:

The inspector will need the following equipment:
  • Field notebook
  • Surface temperature thermometer
  • Dry-film gauge and paint thickness standard
  • Pocket knife
  • Scheduling Inspection: It is not always possible for the inspector to be on the job at all times because of other commitments and duties. Obviously it is important for the inspector to be familiar with the painter's operational schedule and for the painter to have a clear understanding of what the inspector wishes to check. An agreement between the inspector and painter can then be established so that the inspector can at least be present at the critical times and any hold-up of painting operations can be avoided