Description
What is Abrasive Test kit
Abrasive test kit is use to measure salt contamination level on blasting abrasive media before blasting process according to ASTM D4940. Abrasives are widely uses during blast cleaning to get clean, rough surfaces for coating applications. The abrasive is made of slag, cooled by air and water.
Slag cooled by seawater or other contaminated or salty water, contains many ionic substances. Ion (salt) contamination from abrasives then transfers to the steel surface. This accelerates the corrosion rate. Failure to remove the salt before coating can cause premature coating failure.
Project coating specifications usually set the upper limit of acceptable abrasive contamination, as well as asks for performing abrasive conductivity tests to ensure compliance.
Abrasive Conductivity Test Frequency
The specification also provides the test frequency; though conductivity tests are performed on the abrasive each time a new batch arrives at the construction site. We provide several type of abrasive test kit according to our client jobs requirement.
Abrasive Test Kit CHLOR TEST A.
Chloride Ion Test for Abrasives
Abrasive media may contain ionic contamination naturally (for example, beach sand), from manufacturing (quenching with contaminated water), transportation, storage or recycled use abrasive. Ionic contamination on the abrasive may transfer to the surface during abrasive blast cleaning, resulting in potential osmotic blistering, accelerated under film corrosion and premature coating failure.
Many coatings have failed from chlorides deposited on a surface by contaminated abrasive. Finally, there is a test that you can do in the field in minutes! No need sending samples to a laboratory, safe time and also safe cost!
Abrasive Test Kit CHLOR*TEST “A” is the only complete and easy to use abrasive test kit – even the least experienced tester can get accurate results.
A self contained, accurate, and also reliable test kit. CHLOR*TEST “A” provides results in minutes.
When specifications require consistent, safe, reliable testing of abrasives, use CHLOR*TEST A. Each kit contains four (4) individual tests.
CHLORTEST-A Abrasive Test Kit uses ASTM D4940 principals, but offers the additional value of chloride ion specific measurements.
ASTM D4940-15(2020) Standard Test Method For Conductimetric Analysis Of Water Soluble Ionic Contamination Of Blast Cleaning Abrasives
1.1 This test method describes a procedure for assessing blast cleaning abrasives for the presence of conductive-potential, ionic contaminants by determining the total concentration of water soluble conductive species using a conductivity test.
1.2 This test method does not identify the ionic species present nor provide quantitative results on each species.
1.3 This test method is based on a volume comparison among abrasives of similar sizes. A volume comparison is more closely related to surface area of the abrasives than is a weight comparison.
1.4 The values stated is only in SI units are to be regarded as standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization. Its Established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Not Only contamination from test to test but also cross contamination could eliminated through one time use of individual test. The individual component is pre-measure to ensure accurate results in parts per million. In additional no temperature correction require for temperature from 41ºF to 176ºF. Use this innovative product confidently with any abrasive.
ABRASIVES TEST KIT POSITECTOR® SST MEASURES THE CONCENTRATION OF WATER-SOLUBLE CONTAMINATES IN BLAST CLEANING ABRASIVES.
The Positector SST Abrasives Test Kit was design to determine the concentration of soluble salt contaminates in blast cleaning abrasives, in accordance with ASTM D4940 and ISO 11127-6.
What is ASTM D4940 Significance and Use ?
Abrasive media may contain ionic contamination naturally (for example, beach sand). It start from manufacturing (quenching with contaminated water), transportation, storage until use (in the case of abrasive that is reuse). Ionic contamination on the abrasive may transfer to the surface during abrasive blast cleaning, resulting in potential osmotic blistering, accelerated under film corrosion and premature coating failure.
This test method describes a shop/field procedure for assessing the level of conductive species on an abrasive.
Abrasive standards published by SSPC (AB) and ISO 11126 provide tolerance levels for water soluble contaminants of the abrasive.
Scope
Firstly this test method describes a procedure for assessing blast cleaning abrasives for the presence of conductive-potential, ionic contaminants by determining the total concentration of water soluble conductive species using a conductivity test.
Secondly its does not identify the ionic species present nor provide quantitative results on each species.
Finally it is based on a volume comparison among abrasives of similar sizes. A volume comparison is more closely related to surface area of the abrasives than is a weight comparison.
The values stated in SI units are to be regarded as standard, there is no other units of measurement are included in this standard.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
This international standard was developed in accordance with internationally recognized principles on standardization. Then Established in the Decision on Principles for the Development of International Standards, Guides and Recommendations. Issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
PosiTest Abrasive Test Kit Features
- Quickly test abrasives for soluble salt contamination in the field or laboratory
- Specifically designed for ASTM D4940 and ISO 11127-6
- Includes everything required to measure abrasive contamination using a PosiTector SST or other conductivity meter
- Portable — includes a durable and also hard shell case
- Includes certified conductivity standard (calibration solution) to verify meter accuracy, and also Certificate of Analysis.
PosiTest SST Abrasive Test kit contain of :
- 600 ml glass beaker, 100 ml glass beaker, 600 ml plastic beaker, also Plastic funnel, 60 ml Certified Conductivity Standard, 1 liter deionized water (type II), 100 circle filters (125 mm), Stainless steel mixing rod, Instruction card and Certificate of Analysis
For more product detail or inquiry please contact us.
