A Review of the Activities at the June, 2013 ASTM C24 Committee Week Meeting In Indianapolis

Posted on 6/24/2013 9:39:45 AM By Bob Braun

Blog By: Former Dow Chemical Foam Sealants R & D Leader Bob Braun 

In my last blog, I focused on the pending activities at the ASTM C24 (Building Seals and Sealants) Committee week meeting.  I especially focused on the joint sustainability initiatives of ASC and ASTM.  This initiative was first championed by ASC’s Senior Director of Membership Steve Duren in 2011.

In this blog I will report on several of the results and conclusions for the June ASTM C24 three day meeting held in the JW Marriott Hotel.  A committee week meeting can be attended by a thousand or more industry, consumer, and general interest representatives across ten or more Main ASTM Committees (some of the committees are related but many are unrelated to the scope of C24).  This event was no exception to that rule.

Here are significant outcomes from this C24 Committee meeting:

Sunday June 9: Terminology

The revision of the term “Standard Conditions” was agreed to at the C24.01 Terminology Subcommittee meeting and now will be sent to ballot… 
The revised definition increases the tolerances allowed for both temperature and humidity when testing according to ASTM C24 Methods to relative humidity of 50 % and air temperature of 23 C at ambient atmospheric pressure, with tolerances (allowed operational fluctuations) of +/-10% relative humidity and +/-2 C.

Monday June 10:

Subcommittee C24.03 for Citations presented five awards as follows:

  • Steve Duren from ASC, Rick Miner of Arkema Emulsion Systems, and James Walker from Tremco each received the ASTM Award of Appreciation for outstanding service.
  • Chris White from NIST received the ASTM Lou Toporcer Hall of Fame Award for distinguished service.
  • Chris Sass from Wiss Janney Elstner received the Award of Merit (which is the highest award given by ASTM).

Also on Monday Subcommittee C24.61 Aerosol Foam Sealants began their review of the inter-laboratory study (ILS) for foam sealant yield led by Kristin Gregg from DAP.    Technical experts Phillip Godorov, and Caitlin Farrell from the ASTM ILS Staff were also in attendance as well to help guide the group’s interpretation.  Seven testing laboratories ran the C1536 foam sealant test method for yield using the same lots of both gun and straw foam sealant.  This was the first ILS for C24.61 (one of the first as well for C24) and the results were very surprising.  Although the method’s reproducibility was unexpectedly large, the results have generated an out-streaming of group ideas to improve the method.  These will be discussed during a July 9 conference call of the participants.

Tuesday June 11:

The Research and Liaison (R&L) Session focused on the sustainability program administered by ASTM C24.  Michael Schmeida from Tremco led the hour plus meeting designed to help establish the final project scope.  Wayne Trusty from Wayne B. Trusty Associates Limited also connected to the meeting by speaker phone.  It had earlier been suggested that additional sealant types such as foam sealants, lock strip gaskets, and compression seals be included in the scope.  After the one hour presentation and discussion, the group’s agreement was to limit the product category rule (PCR) creation to “liquid sealants”.  The dialogue from this R & L session will be further reviewed by the ASTM ad hoc oversight Committee for a final decision on “scope” for the PCR. Once the details of the PCR are established, the environmental product declaration (EPD) for products can be developed.  Below I have shown the main features of the process…

Step 1: Develop the PCR under the administration of the program operator, ASTM
Step 2: Conduct the LCA which must gather the necessary data in order to compile the environmental impact
Step 3: Develop the EPD with the manufacturer using the PCR to compile the life cycle assessment
Step 4: Verify the EPD through the program operator (ASTM International)

With C24 as the program operator (Interested companies can view the general program details at; a five person ad hoc oversight committee has been established.  A formal technical advisory committee will be formed sometime in Q3 2013 to vet the development of the Product Category Rule. 
To date ASC has been active with the many efforts below and now I want to recap from my previous blog several important recent developments and links to informative details related to sustainability:


  • ASC conducted a survey to industry stakeholders to gauge the perception of EPDs and PCRs…


  • ASC participated in 3-4 scoping calls with the ASTM Ad hoc group to share thoughts, concerns and ways we can approach rule making for sealants


  • ASC Held “EPD 101 Webinar” with Wayne Trusty as the Presenter on the ASC Training Academy Platform


  • Published ICIS awareness piece (p16)
  • ASC formally informed its Technical Committee of this activity.
  • ASC held the following three, 45 minutes sessions at the 2013 ASC Spring Convention focused on PCR and EPD development:

EPD 101: What Why and How”, Wayne Trusty (Wayne B. Trusty & Associates Limited)
This presentation focused on the what, why and how of an Environmental Product Declaration (EPD). 

"Key Learning’s from the Door and Hardware industry on Product Transparency, Aaron Smith (ASSA ABLOY Door Security Solutions®)
This presentation will discuss the experience of product transparency from the point of view of the largest global manufacturer of doors, hardware and access control products. PCRs, LCAs and EPDs and HPDs.

Importance of Service Life Prediction Metric in PCR Development for Sealants, Chris White (NIST)
Developing a Product Category Rule (PCR) for one or more products involves providing a life cycle assessment.  This presentation detailed specific examples where subtle changes in the expected lifetime of a product had unexpected impacts on the environmental life cycle assessment.  Following these examples, current methods of assessing the service life of polymeric building materials will be reviewed. 


  • Published Press Joint Press release with ASTM on Announcement of PCR Initiative:

Press Release ASTM

Press Release ASC

  • ASC made FEICA (European Association) aware of our efforts and also learned that they are also in the process of sustainability efforts focused on adhesives and sealants.

In Blog #30, I will be leaving the subject of sustainability for a while and will return to a review of details for the E2128 guide as commonly used to evaluate in-place constructed walls for water leakage. The list below shows what we have discussed so far in the building wall series.  We have reached the final steps before moving to building issues below grade.  In subsequent blogs, I will discuss whole building testing issues and mock-up testing.  In this way we will begin to tie together the individual property testing with the whole building design.

  • ASTM E 283 Laboratory Air Infiltration
  • ASTM E 331 Laboratory Water Penetration (Uniform)
  • ASTM E 547 Laboratory Water Penetration (Cyclic)
  • ASTM In-Field Air Leakage
  • ASTM and AAMA Field Water Penetration Testing
  • ASTM E 2128 Standard Guide for Evaluating Water Ingress

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