I was rereading your response and realized you might have misinterpreted my intent. If you've ever heard me lecture anywhere, you would have heard me point out that the US occupational safety regulations are just about the worse in the world. So I certainly was not saying you should follow our risk assessment rules. In fact, the UK was one of the first countries to adopt a matrix risk assessment that is a model. That said, your risk assessment rules would include actually identifying the substances you were cleaning up so a number value could be assigned to the hazard. And that also would allow a proper right to know training for those doing the work which would include specific information on the hazards and symptoms associated with those substances. So I think an analysis of the material is in order. Simply assuming the worse and instituting good general precautions probably is not the best course of action.
And I also think this analysis should be in the treatment record with a side benefit that you have alerted the owner of the object to their obligation to provide specific hazard information to those who care for it on their behalf. That's not a law, but there is an ethical quality to that course of action. ------------------------------ Monona Rossol Arts, Crafts, & Theater Safety New York NY (212) 777-0062 ------------------------------ ------------------------------------------- Original Message: Sent: 10-14-2019 10:51 From: Charles Stable Subject: Contemporary Murano chandelier weeping Dear Trude, At the National Museums Scotland we have treated 3 pieces of contemporary designed Murano glass vases designed by Michele de Lucchi for Memphis, Milan, and made by Toso Vetri d'Arte, dating from 1983 which have shown evidence of weeping and formation of salt crystals. The pieces are on display , we washed the glass to remove surface salts and dried them. and have displayed them at 40% RH using passive control ( conditioned pro-sorb cassettes). The vases have been on display for 4 years , we continually monitor for signs of redeveloping weeping but as yet not observed anything . The glass is coloured , predominantly blues, greens and yellow. ------------------------------ Charles Stable Artefact Conservator National Museums Scotland Edinburgh 4401875614657 ------------------------------ Original Message: Sent: 10-10-2019 20:07 From: Trude Ellingsen Subject: Contemporary Murano chandelier weeping I have been condition reporting a large Fred Wilson chandelier and found that the surface had a greasy feel and alkaline pH when tested. The work is from 2011 and I would be interested to hear if anyone else has found Murano glass which as recently been produced to be weeping, and what the maintenance implications have been. ------------------------------ Trude Ellingsen Objects Conservator National Gallery of Victoria Melbourne +61 3 8620 2108 ------------------------------ Reply to Sender : https://community.culturalheritage.org/eGroups/PostReply/?GroupId=481&SenderKey=6ea82495-27fc-43b2-804c-b5004e98b727&MID=9115&MDATE=756%253e46546%253c&UserKey=d16eaa87-0f69-494b-9f2f-303dbc1222e1&sKey=fab9aa4f27a04c5d876e Reply to Discussion : https://community.culturalheritage.org/eGroups/PostReply/?GroupId=481&MID=9115&MDATE=756%253e46546%253c&UserKey=d16eaa87-0f69-494b-9f2f-303dbc1222e1&sKey=fab9aa4f27a04c5d876e You are subscribed to "Global Conservation Forum (ConsDistList)" as [email protected]. To change your subscriptions, go to http://community.culturalheritage.org/preferences?section=Subscriptions&MDATE=756%253e46546%253c&UserKey=d16eaa87-0f69-494b-9f2f-303dbc1222e1&sKey=fab9aa4f27a04c5d876e. To unsubscribe from this community discussion, go to http://community.culturalheritage.org/HigherLogic/eGroups/Unsubscribe.aspx?UserKey=d16eaa87-0f69-494b-9f2f-303dbc1222e1&sKey=fab9aa4f27a04c5d876e&GroupKey=757a8f16-505f-4323-8e74-e376757aa9f7.
