SSPC AB 1 PDF
Details. You are purchasing a downloadable pdf of this specification defines the requirements for selecting and evaluating mineral and slag abras. 15 Feb Mineral and Slag Abrasives (Abrasive Specification No. 1). 12 Jan The abrasives covered by this standard are primarily intended for one-time use without recycling, however, some media are capable of being.
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The cleanliness of the abrasive whether new or recycled is equally important.
AB 1, Mineral and Slag Abrasives
Thank you for interesting in our services. It contains discussions of the risks associated with overcoating, methods of assessing risk, and means by which risks may be managed and reduced.
A lb pot shall be charges with lbs kg of abrasive and the test panel blasted to SSPC-SP 10 near-white condition. Aspc agree that continued monitoring is highly xspc, especially with recyclable materials, since localized surface contaminants can become widespread when entered into the sslc blasting media. June 16, at sslc There are several indirect requirements, including: Conformance tests shall be conducted on each lot as required by the pur chaser.
One sack of abrasive shall be randomly selected from each inspection lot and a 2 kg 4 lb composite sample prepared in accordance with ASTM C This field test, commonly sspc ab 1 as the vial test, requires that a sample of abrasive be placed in a sspc ab 1, sealable container. Examine the glass surface, and if scratched, the material shall be considered as having a minimum hardness of 6 on the Mohs scale.
New or Revised SSPC Standards Issued in
The surface cleaning rate shall be determined as the area cleaned divided by the time required to blast and reported in square feet square meters cleaned per hour. The Guide is intended to assist specifiers and contractors who need to compare field test procedures and the information each procedure provides, along with other considerations, in order to select the most appropriate test procedure or procedures for use on a given project.
If oil is visually evident, sspc ab 1 abrasive fails the test.
Appendix A outlines a suggested procedure. March 7, at 9: I do not think anyone can confidently quantify abrasive contamination transfer to a surface during abrasive blast cleaning, as there are too many variables to consider. The sample, in water, when tested in 4.
AB 1, Mineral and Slag Abrasives
Examine the material under low-power microscope 10X and if grains of different colors or character are present, select a few grains of each. Sspx maximum moisture content shall be 0. This specification defines the requirements for selecting and evaluating mineral and slag abrasives.
December 27, sspc ab 1 8: Normally the user shall specify the types, classes and grades required. March 3, at It is important that the conductivity meter compensate for temperature and that the probe is verified for accuracy using a controlled solution with a known conductivity value prior to use. If no arbitration or settlement procedure is established, then a procedure mutually agreeable to the purchaser and material supplier shall be used. Your email address will not be published.
You are purchasing a downloadable pdf of this Standard. The sspf blast cleaning standards are composed of both direct and indirect requirements. Abrasives shall contain no more than 1.
However, upon mutual agreement between supplier and purchaser, a performance test procedure can be established. Print this Article Send to Colleague. Therefore, it is important to select the proper sampling loca tion, and to use proper techniques to select the sample. All subsequent analyses performed on the selected sample are likely to be affected by particle size, so it is imperative that every reasonable effort be made to select the sample in a way that will assure proper representation.
This could cause widespread failures and become very expensive to repair. Manufacturers may use the standard to evaluate the performance of their coatings. We are a non-profit group that run this website to share documents. Which abrasive cleanliness standard should be used?
This standard provides laboratory performance testing benchmarks and acceptance criteria for moisture-cured aromatic polyurethane coatings containing micaceous iron oxide pigment reinforcement.
Selection sspc spc 1 the type and size sspc ab 1 is dependent on the degree of cleanliness specified, the depth of the surface profile, the type of substrate to be prepared, and any specification requirements regarding type e. The required conformance tests are particle ah distribution Section 4. Each trial shall cover approximately 20 sq. The crystalline silica content shall be determined by the use of infrared spectroscopy or by other analytical procedures, such as wet chemical or X-ray diffraction analyses.
All abrasives must be classed based on crystalline silica content see Note 7. Waterjet Cleaning of Metals: Xspc approximately 1 gram of the dried sample to a tared crucible with cover and weigh to the nearest milligram. The frequency and lot size for quality conformance testing shall be mutually agreed upon between the supplier and the purchaser.
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The hardness shall be a minimum of 6 on the Mohs scale when tested as follows: The percent of weight change shall be computed as follows: Size px x x x x The conductivity of the abrasive shall not exceed microsiemen when tested in accordance with ASTM D see Note 7. Ba it may not be required by sscp specification, it is good practice to first conduct a test panel ss;c confirm the planned method of surface preparation will sspc ab 1 the specification.
Thank you for your question Mr.
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