HENGONE Inspection Technology

SSPC-SP1- Solvent Cleaning SSPC-SP2- Hand Tool Cleaning SSPC-SP3- Power Tool Cleaning SSPC-SP5/NACE 1- White Metal Blast Cleaning SSPC-SP6/NACE 3- Commercial Blast Cleaning SSPC-SP7/NACE 4- Brush-Off Blast Cleaning SSPC-SP10/NACE 2- Near-White Commercial Blast Cleaning SSPC-SP11- Power Tool Cleaning to Bare Metal SSPC-SP13/NACE 6- Surface Preparation of Concrete SSPC-SP14/NACE 8- Industrial Blast Cleaning SSPC-SP15- Commercial Grade Power Tool Cleaning  SSPC-SP16- Brush-Off Blast Cleaning of Non-Ferrous Metals Reference Surface Preparation Guide

What is the applicable standard and tolerance class for the dimension inspection when the specific tolerance is not stated on the approved drawing? What is the standard tolerance for piping installation and the tie-in point? Regarding steel structures and related materials, if specific tolerances are not addressed in the approved drawing or approved ITP (Inspection and Test Plan), the construction tolerances specified in AWS D1.1 (specifically paragraphs 7.21, 7.22, and 7.23) will be applied. For piping, piping installation, tie-in points, and related materials, if specific tolerances are not addressed in the approved drawing or approved ITP, the construction tolerances specified in ASME B31.3 (specifically Paragraph 335, Erection and Assembly) will be applied. - (Rev.1) Typo & Editorial Errors Corrected

Rev.0 / 23 Nov. 2021 / First Issue Rev.1 / 28 Jan. 2022 / Correction of Typo and Editorial error Rev.2 / 9 Oct. 2025 / Added the motor vibration rules ISO 10816 consists of the following parts, under the general title Mechanical vibration — Evaluation of machine vibration by measurements on non-rotating parts: — Part 1: General guidelines — Part 2: Land-based steam turbines and generators in excess of 50 MW with normal operating speeds of 1500 r/min, 1800 r/min, 3000 r/min and 3600 r/min — Part 3: Industrial machines with nominal power above 15 kW and nominal speeds between 120 r/min and 15 000 r/min when measured in situ — Part 4: Gas turbine sets with fluid-film bearings — Part 5: Machine sets in hydraulic power generating and pumping plants — Part 6: Reciprocating machines with power ratings above 100 kW — Part 7: Rotodynamic pumps for industrial applications, including measurements on rotating shafts — Part 8: Reciprocating compressor systems — Part 21: Horizontal axis wind turbine...

Piping 1) B31.3 Process Piping 1-1) Why the piping spool is examined as per ASME B31.3? If the contract document states ASME B31.3 for the piping spool, it shall be applied. (If the purchaser is not familiar with B31.3 code, the piping spool should be tested and inspected as per B31.3 for the safety issue.) 1-2) B31.3 is not applicable for the following cases from (a) to (d) (a) piping systems designed for internal gage pressures at or above zero but less than 105 kPa (15 psi), provided the fluid handled is nonflammable, nontoxic, and not damaging to human tissues as defined in 300.2, and its design temperature is from −29°C (−20°F) through 186°C (366°F) (b) power boilers in accordance with BPV Code2 Section I and boiler external piping that is required to conform to B31.1  (c) tubes, tube headers, crossovers, and manifolds of fired heaters that are internal to the heater enclosure (d) pressure vessels, heat exchangers, pumps, compressors, and other fluid handling or processing equ...

The painting company should carry out the following test activities in accordance with the following ISO standard or ITP (Inspection and Test Plan). 1) Surface preparation quality ① Grade of cleanliness: according to ISO 8501-1. ② Cleanliness: no grease or oil, dust level 2 maximum according to ISO 8502-3. ③ Surface profile: according to ISO 8503-5 Sa 2 1/2 (Equivalent: SSPC-SP10) . 2) Salt contamination: According to ISO 8502-6 and 8502-9, The salt level-50mg/㎡ maximum for exposed atmosphere. 20mg/㎡ maximum for immersion area and internal lining 3) Adhesion Test according to ISO 4624 and /or ISO 2409. 4) Holiday test: No detection according to ASTM D5162 (for immersion area, internal lining and Underground items) 5) For inorganic zinc silicate: MEK test according to ASTM D4752. 6) Dry film thickness: According to ISO19840 7) Wet film thickness: According to recommend by paint manufacturer. 8) Application Environmental [including Weather (Climate) Condition]: Ambient Te...

ISO 2768-1, General Tolerances - Part 1: Tolerance for linear and angular dimensions without individual tolerance indications ISO 2768-2, General Tolerances - Part 2: Geometrical tolerances for features without individual tolerance indications ISO 13920, Welding - General tolerance for welded constructions - Dimensions for lengths and angles - Shape and position Rev.1 (Nov.10, 2021) The tolerance class shall be stated on the drawing or the contract document. If the tolerance class is not specified, the following class shall be applied as per the common practice. ISO 2768-1, Tolerance Class: m ISO 2768-2, Tolerance Class: K ISO 13920, Tolerance Class: B & F The QC inspector cannot decide the tolerance class for the acceptance criteria. Prior to the dimension inspection, the QC inspector and the buyer's engineer shall discuss the applicable tolerance class. If the discussion is not possible due to the several reason, the applicable tolerance class shall be stated in the i...

This guide is used for the purchaser's inspection. ITP Step 2.1 Edge Preparation & Fit-up Inspection Please perform the visual and dimension inspection as per the applicable WPS which is placed at the fabrication shop (not in the office) for the check of material thickness, groove angle or bevel angle, root gap, tack weld condition and filler metal specification. Also, the storage method of the filler metal shall be checked. Please verify the welder IDs with the the welder list. The fabrication shop overview to be fabricated our tanks, welding machine condition, shield- gas gauge shall be reported with the evidence photos. Please identify the material specification with the permanent or temporary marking on the main materials. The heat numbers shall be matched between the materials and the material certificates. (End)

Third Party Inspection (TPI), Vendor Inspection and Shop Inspection are carried out in accordance with the inspection and test plan (ITP). Basically, ITP is written by the manufacturer QC engineer. The ITP is submitted to the purchaser for the purchaser's review or approval. STD-ITP-0001 is providing the standard ITPs of general equipment or items for supporting the QC engineers of Manufacturer, Supplier, EPC contractor and Company (End User). The standard ITP consist of the following inspections and tests; Material Inspection Visual & Dimension Inspection Function Test or Performance Test Paint Inspection Packing Inspection IRC(Inspection Release Certificate) Standard ITP