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Technical Support Central
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 Wednesday, September 05, 2007
On ASTM
Part of my absence in July has been my attention to many projects at work. Plans for a series of lectures and a demonstration in October at the Savannah College of Art and Design have taken up large parts of my workday. Another exciting opportunity to contribute to the art world has developed over the last month. Mark Gottsegen has become more involved in his venture to provide lectures and educational opportunity for the art community through his organization AMIEN; he asked me to take over his previous position as Chair of the American Society for Testing and Materials for Artists’ Materials ( ASTM). This will be a great personal challenge for me. In recent years, participation by manufacturer members has been slipping. While this may be a part of a natural cycle of interest in ASTM as the Artists’ Materials group moves from creating standards for some of the high visibility, large volume art materials to the smaller-revenue generators in a manufacturer’s product line. Regardless, a lot of work will need to be done to bring back some of the old familiar participants and attract a new generation of enthusiastic manufacturers. Exciting new products are coming into the marketplace, and both the consumer and manufacturer stand to benefit from participation in ASTM. Education of the public is lacking. Many artists I contact do not know the work of ASTM. Others see it as “that group that does the health and safety thing.” This “health and safety thing” is more commonly referred to in ASTM parlance as D4236. This standard was a major undertaking by both ASTM and the Congress of the United States when they decided that art materials needed to have some point of official contact so that— if by some reason an art material was ingested or came into accidental contact with sensitive parts of the human body—a source of authority on the composition of the product could communicate with health care professionals to provide vital information on the composition and toxicity of the material in question. Other standards familiar to artists relate to the lightfastness of art materials. ASTM has provided manufacturers with a forum to come together to evaluate the durability of pigments. While many pigments remain unchanged when exposed to light over long periods of time, other pigments fade and pose problems for the artist. ASTM provided the means to test and evaluate the major pigments used for making art materials, and ASTM came up with a rating system that’s easy for an artist to understand. My task, and the task of those who wish to help, will be to educate artists as to the importance of ASTM and how their involvement as smart consumers can influence the art materials industry. If the public desired new standards, ASTM could provide them. This would forge a partnership—between the consumer who wants quality art materials and the manufacturer who could provide them. In my time as an observer of the art materials industry, I’ve impressed overall with the genuine care and concern that manufacturers have toward their customers. I believe they want to sell good materials because it makes good business sense, and it’s the right thing to do. Many manufacturers are artists as well; they accordingly feel a sense of responsibility to produce good quality art materials. Archival standards | Lightfastness
9/5/2007 3:31:16 PM (Eastern Daylight Time, UTC-04:00)
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 Tuesday, May 22, 2007
Pastels and Lightfastness
 I had the wonderful opportunity to attend the IAPS meeting in Albuquerque, NM, last week and delivered a lecture on lightfastness testing of pastels. The audience was fantastic! Lots of great questions were posed on the issues involved. I believe that pastel artists have become accustomed to the notion that some pastels fade when exposed to light. My presentation on lightfastness problems concerned the audience but did not shock them as it did when presented several years ago by one of my colleagues. The key to getting manufacturers to create reliable pastels will come when the American Society of Testing and Materials (ASTM) establishes a pastel standard. This standard will map out the protocol for conducting lightfastness testing, enabling manufacturers to test and evaluate pastels they make so if several color mixtures don't meet adequate lightfastness ratings, they can reformulate the pastels. That standard is a year or two away from completion—if no serious impediments come in the way of the current writing and preliminary testing process. The one refreshing aspect to this pastel standard will be that finished pastel products, not just the pigments themselves will be evaluated. This is important because some pigments can perform well without any additives, but when mixed with other components, the combination of materials will result in an unstable product in terms of lightfastness. The opposite can be true as well. Unstable pigments may perform well when mixed with other pastel ingredients and prove to be highly lightfast. Pastel artists don't have to be held captive when it comes to knowing what colors are good performers and those that fade fairly quickly when exposed to light. A protocol that provides a very good indicator of how materials will behave if exposed to light, is available for anyone to use. The method is fairly simple. Artists can prepare a suitable sample card that exposes a portion of the pastel to light while leaving a portion masked from any exposure. For a how-to on testing your own pastels for lightfastness, click here. www.artistsmagazine.com/tam_qnaarchive.asp?id=2997 Archival standards | Lightfastness
5/22/2007 1:17:40 PM (Eastern Daylight Time, UTC-04:00)
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