PaintSquare.com
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram Visit the TPC Store
Search the site

 


C702 / C702M - 11 Standard Practice for Reducing Samples of Aggregate to Testing Size

All Standards | ASTM Standards
Search Standards


Click to Purchase and Download this Standard or Test Method

Revision Date: September 12, 2011
Updated On: September 19, 2011
Editorial Change:
 
Specifications for aggregates require sampling portions of the material for testing. Other factors being equal, larger samples will tend to be more representative of the total supply. This practice provides procedures for reducing the large sample obtained in the field or produced in the laboratory to a convenient size for conducting a number of tests to describe the material and measure its quality in a manner that the smaller test sample portion is most likely to be a representation of the larger sample, and thus of the total supply. Failure to carefully follow the procedures in this practice could result in providing a nonrepresentative sample to be used in subsequent testing. The individual test methods provide for minimum amount of material to be tested.

Under certain circumstances, reduction in size of the large sample prior to testing is not recommended. Substantial differences between the selected test samples sometimes cannot be avoided, as for example, in the case of an aggregate having relatively few large size particles in the sample. The laws of chance dictate that these few particles may be unequally distributed among the reduced size test samples. Similarly, if the test sample is being examined for certain contaminants occurring as a few discrete fragments in only small percentages, caution should be used in interpreting results from the reduced size test sample. Chance inclusion or exclusion of only one or two particles in the selected test sample may importantly influence interpretation of the characteristics of the original sample. In these cases, the entire original sample should be tested.

(Back to all Standards)

 
   
Advertisements
 
Detail Masters
 
Overspray Removal
 
We offer professional, turnkey service and unparalleled quality!
Our process can save hundreds— even thousands of dollars. It's fast, environmentally safe and 100% guaranteed.
 

 
Sidewinder/Persyst Enterprises, Inc.
 
The Sidewinder Model M2 Solvent Recycler
 
Combat the rising cost of gunwash, thinners, acetone & more while drastically reducing waste disposal coat.
 

 
BASF
 
New resins from BASF will have metals loving water!
 
Excellent corrosion resistance, low VOC, high gloss, thin films www.basf.us/industrialcoatings dpsolutions@basf.com 800-231-7868
 

 
KTA-Tator, Inc. - Corporate Office
 
KTA Analyzes
Coating Failures
 
• Field Diagnosis
• Lab Diagnosis
• Determination of Cause
• Recommendations
www.kta.com
Call 1-800-245-6379
 

 
CHLOR*RID International Inc.
 
SOLUTIONS THAT WORK
 
Companies that invest in corrosion control use CHLOR RID products
  • Soluble salt removal liquid
  • Test kits to verify contamination levels
  • Surface passivation to hold the blast
INFO@CHLOR-RID.COM 800.422.3217
 

 
International Bridge Conference
 
2017 International Bridge Conference
 
June 4-8, 2017, National Harbor, Maryland
 

 
Monti Tools, Inc.
 
BRISTLE BLASTER® – THE ORIGINAL ONE
 
  • Abrasive blast with a power tool
  • Remove corrosion, mill scale and coatings
  • Cleans & roughens
  • Meets SSPC-SP 10 / NACE No. 2
  • Profile up to 4.7 mils
  • ATEX Zone 1
  •  

     
    Clemco International GmbH
     
    Global engineering-trusted solutions
     
    For more than 70 years, Clemco has provided the highest quality blast equipment with a total commitment to comfort and safety.
     

     
    SABRE Autonomous Solutions
     
    Quality
     
    The ALPHA1 provides a consistent finish day-in
    day-out; job to job.
     

     
    DeFelsko Corporation
     
    PosiTector SHD Shore Hardness Durometer
     
    PosiTector SHD measures the hardness of non-metallic materials. Features a measurement timer, auto ignore mode and internal memory. Shore A or D available.
     

     
     
     

    Technology Publishing Co., 2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951

    TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


    The Technology Publishing Network

    Durability + Design PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

     
    EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
    REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
    MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us