ASTM D4940 PDF

Elcometer Abrasive Soluble Salt Test Kit – ASTM D Abrasives used for blast cleaning surfaces can be contaminated with soluble salts due to the. 1 Dec ASTM D Standard Test Method for Conductimetric Analysis of Water Soluble Ionic Contamination of Blast Cleaning Abrasives. 23 Nov ASTM D – Standard Test Method for Conductimetric Analysis of Water Soluble Ionic Contaminatio.

Author: Dogar Tojalrajas
Country: Gabon
Language: English (Spanish)
Genre: Music
Published (Last): 17 May 2016
Pages: 300
PDF File Size: 7.18 Mb
ePub File Size: 16.63 Mb
ISBN: 921-7-82394-951-9
Downloads: 75907
Price: Free* [*Free Regsitration Required]
Uploader: Dihn

Top Categories Terms of Use. Results are recorded in parts per million ppm requiring no complicated calculations. Elcometer S test astm d4940 It is essential astm d4940 the level of contaminants on a surface is measured prior to application of the coating to ensure the quality of the coating and that its optimum lifetime is achieved.

Land Use and Development. No items in cart. Chloride salts left on the surface before the first coat is applied can result in the coating system being forced off the surface by corrosion or blistering before the astm d4940 life of the coating has been reached. There astm d4940 no books found for the applied search filters. Search book title Enter keywords for book title search. Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.

The inspector shall ask the blasting team to do blasting job on a test plate of a convenient bigger size and compare with standard panel. Elcometer E Conductivity Meter An entry level conductivity meter, is ideal for astm d4940 soluble salt concentration and electric conductivity EC of solutions. This contamination can be transferred to the blast cleaned surface and result in accelerated corrosion conditions and also cause premature coating failure, if this contamination is not removed prior to applying the coating.

Related Articles  GARDNER INTELIGENCJE WIELORAKIE PDF

astm d4940 Gurudas, the following is a reply from the author, John Todd: If dust settles on the surface or water remains cloudy, the astm d4940 cleanliness of the abrasive should be questioned as this could cause impede production.

By-product abrasives manufactured from slags that are air cooled or quenched with pure water, normally contain low concentrations of ionic materials, as do mined mineral abrasives. It is important that the conductivity astm d4940 compensate for astm d4940 and that the probe is verified for accuracy using a controlled solution with a known conductivity value prior to use.

The Elcometer Asym Salt Contamination Meter quickly and accurately measures the level of soluble salts on surfaces.

Astm d4940 manufacturers may have performed laboratory analysis of the product, but this does not satisfy the requirements of SSPC abrasive standards. Notes are optional and private.

ASTM D4940

The degree of embedment from abrasive blast cleaning operations can vary widely even astm d4940 a generic category of abrasive. FORMAT Single User Subscription Site License Subscription BOOKS All Books PACKAGES All Packages EDITION to PUBLISHER.

The test shall be repeated till the team is capable of carrying astm d4940 the desired blasting job.

This could cause widespread failures and become very expensive to repair. How can I tell if the abrasive is contaminated?

Salt Contamination Kits

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior asfm use. Proper surface preparation is one astm d4940 the most critical steps astm d4940 maximizing the life of a coating system. Although astm d4940 may not be required by the specification, it is good aatm to first conduct a test panel to confirm the planned method of surface preparation will meet the specification.

Related Articles  ALBAN DOUGLAS 100 BIBLE LESSONS EBOOK

By continuing to use our site, you accept our use of cookies To learn more, click Read More astm d4940 view our Privacy and Cookies Policy. That is, abrasive cleanliness is an indirect requirement. December 27, at 8: Elcometer E Conductivity Meter, ml This contamination can be transferred to the blast cleaned surface and result in accelerated dd4940 conditions and also cause premature coating failure, if this contamination is not removed prior to applying the coating.

Selection of the type astm d4940 size abrasive is dependent astmm 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 Elcometer SSP provides fast and accurate measurement of the astm d4940 and density of soluble salts on surfaces — and can provide Bresle equivalent values. Using the Elcometer A Chloride Ion Test for abrasives in the field will accurately identify contamination and prevent costly surface-related failures.

Without routine monitoring of abrasive cleanliness, astm d4940 contaminants could go unnoticed. There are several indirect requirements, including: Water soluble e4940 are the non-visible soluble salts that may be present on an abrasive. A volume astm d4940 is more closely related to surface area of the abrasives than is a weight comparison. Related Suppliers Searching astm d4940 related suppliers Register or Log in for direct astm d4940 to additional content.

This test also reveals whether ast abrasive is excessively dirty. The cleanliness of the abrasive whether new or recycled is equally important. Abrasive blast cleaning is the most common and productive form of surface preparation. We never had a big problem.