You are purchasing a downloadable pdf of this Standard. This specification defines the requirements for selecting and evaluating mineral and slag abrasives . 6 Feb JETMAG® abrasive was analyzed in accordance with the required qualification tests of. SSPC-AB 1 for specific gravity, hardness, weight. 15 Feb Mineral and Slag Abrasives (Abrasive Specification No. 1).
|Published (Last):||3 March 2013|
|PDF File Size:||13.32 Mb|
|ePub File Size:||18.68 Mb|
|Price:||Free* [*Free Regsitration Required]|
The degree of embedment from abrasive blast cleaning operations can vary widely even within a generic category of abrasive. This includes personalizing content and advertising. Transporting, storing, and recycling of the media can affect the sspc ab 1 of the abrasive.
The Importance of Monitoring Abrasive CleanlinessKTA University
December 27, at 8: This is especially true for coatings in a marine service sspc ab 1 or immersion, such as ballast tanks. If oil is visually evident, the abrasive fails the test. Abrasive embedment is inevitable and is not normally detrimental, but if the abrasive is contaminated, so is the embedment.
Ssoc test also reveals whether sspc ab 1 abrasive is excessively dirty.
SSPC-AB 1, Mineral and Slag Abrasives
So even if the project specification does not specifically address abrasive cleanliness, it is automatically invoked when an SSPC abrasive blast cleaning standard is specified. The cleanliness of the sspx whether new or recycled is equally important. We never had a big problem. Abrasive manufacturers may have performed laboratory analysis of the product, but this does not satisfy the requirements of SSPC abrasive standards.
sspc ab 1
Your email address will not be published. The container is shaken for about 1 minute and allowed to stand up to 5 minutes.
The surface of the water is then visually examined for any oil sspc ab 1 or sheen. Water soluble contaminants are the non-visible soluble salts that may be present on an abrasive.
This allows the contractor, inspector, and owner to identify any potential issues with the method before it becomes a larger, more costly problem. An excerpt from sspc ab 1 of the SSPC abrasive blast cleaning standards addressing abrasive cleanliness is shown below: The test shall be repeated till the team is capable of carrying out the desired blasting job. Save my name, email, and website in this browser for the next time I comment.
AB 1, Mineral and Slag Abrasives
Sspc ab 1 importantly, it does not reveal the current condition of the abrasive. SSPC-AB 2 requires additional field and laboratory tests for cleanliness to help ensure the abrasive recycling equipment is functioning properly and that the abrasive operating mix is still adequately sized.
I sspc ab 1 that continued monitoring is highly recommended, especially with recyclable materials, since localized surface contaminants can become widespread when entered into the abrasive blasting media. 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.
Proper surface sspc ab 1 is one of the most critical steps towards maximizing the life of a coating system. It was removed from the test method in the revision as it does create confusion as you mentioned. This field test, commonly known as the vial test, requires that a sample of abrasive be placed in a clean, sealable container.
The abrasive blast cleaning standards are composed of both direct and indirect requirements. Although it may not be required by ss;c specification, it is good practice to first conduct a test panel to confirm the planned method of surface preparation will meet the specification. Sspc ab 1 inspector sb ask the blasting team to do blasting job on a test plate of a convenient bigger size and compare with standard panel.
How can I tell if the abrasive is contaminated?
April 5, at sspc ab 1 Gurudas, the following is a reply from the author, John Todd: The slurry is then poured through filter paper to prevent silt from fouling the probe and conductivity of the filtered extract is measured. Which abrasive cleanliness standard should be used? The two tests that are used to verify abrasive cleanliness are oil content and water soluble salt content. Without routine monitoring of abrasive cleanliness, these contaminants could go unnoticed.
Abrasive sspc ab 1 is a key component to an abrasive blast system. The following is from the author, Sspc ab 1 Todd: March 3, at Surfaces contaminated with salt are much more likely to experience failures, such as blistering, than non-contaminated surfaces even at relatively low concentrations.