ASTM C24 Seals and Sealants: “A Focus on the June 9-11, 2013 ASTM C24 Meeting In Indianapolis”

Posted on 6/6/2013 1:10:37 PM By Bob Braun

In my last blog, I focused on in-field testing for water leakage into buildings including the wall system.  I showed two visual examples of wall deterioration induced by water ingress and also, provided some historical perspective on the development of two key ASTM standards associated with in-field water leakage into building walls…ASTM E2112 and E2128.

In this blog I will temporally digress to highlight some key activities that will take place at the early June ASTM C24 meeting.  Since this is the annual “Committee Week” meeting, Committee C24 will meet along with twenty-two other Committees and three Subcommittees.  The annual Committee Week provides an opportunity for attendees to multi-task and participate in other committees related (though not specific) to their area of interest.  Log onto and select “Meetings and Symposia” in the left side menu if you wish to register and attend.

Here are the highlights of the C24 Committee meeting:

  1. Sunday June 9: Terminology, ISO, and Executive Board meetings will meet from 3 to 7 PM
  2. Other Subcommittees will meet June 10-11:

    C24.03 Citations
    C24.10 Specifications, Guides and Practices
    C24.20 General Sealants
    C24.30 Adhesion
    C24.40 Weathering
    C24.61 Aerosol Foam Sealants
    C24.73 Compression Seals and Lock Strip Gaskets

Note: My next blog will detail the major results for each of the above meetings

  1. Monday June 10 Additional Meetings:

    Workshop on the Intra-laboratory Study Program (ILS) 12 to 1PM.   C24.61 on Aerosol Foam Sealants has just completed an ILS on the test method for foam sealant yield.  The resultant precision and bias statement will be presented and reviewed at the meeting.

    Awards Dinner 6 to 8:30 PM
  2. Tuesday June 11 Additional Meetings:

    Tuesday June 11: Main Committee meeting to discuss all unresolved  subcommittee issues and address possible ballot negatives 4:15 to 5 PM

    The Research and Liaison (R&L) Session meets with continuing discussions to create Product Category Rules (PCR) for sealants 3:15 to 4:14 PM.  You will not want to miss this meeting as this will update the progress made since the last meeting.  

You may recall that at the January 2013 Ft Lauderdale meeting, the ASTM C24 Committee agreed to go forward with an initiative to create PCRs for Sealants. This Research & Learning activity was largely influenced through the awareness of the Adhesives and Sealants Council (ASC) who will be acting as the education arm of this effort. 

To date ASC has been active with the following efforts:


  • ASC conducted a survey to industry stakeholders to gauge the perception of EPDs and PCRs to better understand opportunities and challenges with PCR Rule making and also asked if customers are asking for EPDs specific data. The Survey was designed to help understand how the industry can move forward and in which market segments this group should focus efforts. The survey asked for specific feedback on adhesive and sealant chemistries in separate questions.


  • ASC participated in 3-4 scoping calls with ASTM Adhoc 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


April (Continued):

  • ASC informed its Technical Committee of this activity and remain a resource for the program operator and ASTM adhoc steering committee
  • 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 focuses on the what, why and how of an Environmental Product Declaration (EPD).  Since EPDs are based on Life Cycle Assessment (LCA), the presentation will first focus on an overview of the essence of LCA – the terms, the standards, the basic steps, and the environmental performance measures that result.  We will then shift to the basic steps in developing an EPD, which start with the development of Product Category Rules (PCR) under the direction of a Program Operator, and end with verification and publication of the EPD.  Finally, we’ll focus on the types of EPDs that can result and the bottom line for industry – the critical ‘why’ question.

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.  The life cycle assessment provides a detailed analysis of the environmental impact of the product across its life span from cradle to grave.  Most of the inputs can reliably be determined.  A critical component that can have a dramatic impact on the LCA and thus the PCR is the prediction of the service life.  This presentation will detail specific examples where subtle changes in the expected lifetime of a product can have 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. 

These three PPTs are all available for purchase as post ASC Atlanta meeting materials)

Contact: to obtain PPTs


  • 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

ASTM Vice President Tim Brooke had presented the details of the new ASTM program that is designed to help companies develop Product Category Rules (PCRs), Environmental Product Declarations (EPDs), and Life Cycle Assessments (LCAs).  On October 9, 2012 ASTM issued this news release: ASTM Launches a New Initiative to Address the Environmental Impacts of Products.  This initiated ASTM’s competition into the emerging area of program operators for EPDs. The program’s main elements require that interested ASTM committees ask ASTM as the formally recognized “Program Operator” to establish a technical advisory committee for the product area.  Interested companies can view the general program details at

Since the last meeting, a five person adhoc oversight committee has been established via ASTM and discussions have included expanding the scope of the program to include additional sealing materials such as foam sealants, gaskets, and seals. A formal technical advisory committee will be formed sometime in Q3 2013 to vet the development of the Product Category Rule.  The PCR will be developed through an ASTM technical advisory committee using a consultative process following ISO guidelines.  A panel consisting of at least three independent experts must review and verify the PCRs for conformance with the ISO 14040 series of standards and insure that the LCA-based data provides an accurate description of the significant environmental aspects of the product. In order to promote harmonization, existing PCRs should be used and adapted prior to the development of a new PCR.  Here is the summary for the four step 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             

In Blog #29, I will I will provide details of the results of the ASTM C24 Indy meeting.  In Blog #30 I will be returning to my 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 focus series and the next steps.

  • 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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