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Confirmed Reply Threads
Confirmed threads are reconstructed across archive-year boundaries when Message-ID and In-Reply-To headers identify a relationship. Posts from another year are included in the thread and marked with their archive year in brackets. Subject-Based Groupings remain limited to this year.
Confirmed threads are reconstructed using Message-ID and In-Reply-To email headers. Posts with similar subject lines whose relationships cannot be determined reliably are grouped below as Subject-Based Groupings .
(02 Jan 2025) [DCHAS-L] Filtration syringes from Janine Rhodes copy link
(21 Jan 2025) [DCHAS-L] Quenching n-butyllithium bottles from Jonathan Dannatt copy link
(24 Jan 2025) [DCHAS-L] biology safety rules from Rakers, Rose copy link
(28 Jan 2025) Re: [DCHAS-L] DCHAS-L Digest - 22 Jan 2025 to 27 Jan 2025 (#2025-6) from Shannon Hoffman copy link
(28 Jan 2025) [DCHAS-L] Monitoring Chemical Usage for Instructional Labs from Filiberto Palacios copy link
(03 Feb 2025) [DCHAS-L] Oxygen monitors for intert gas safety from Amber Wise copy link
(06 Feb 2025) [DCHAS-L] Late breaking topic - wildfire response - for Spring 2025 meeting in San Diego from Debbie Decker copy link
(10 Feb 2025) [DCHAS-L] Whoosh Bottle Incident from Stephen Taylor copy link
(10 Feb 2025) [DCHAS-L] Chemical SOP practices from Alex Hagen copy link
(13 Feb 2025) [DCHAS-L] Safety with Lab Glassware from James Kaufman copy link
(16 Feb 2025) [DCHAS-L] Reminder: Spots still available, this week! : New American Chemical Society 2-Year College… from Henry, Dwayne F copy link
(21 Feb 2025) [DCHAS-L] Hydrogen Gas Safety from Margaret Rakas copy link
(27 Feb 2025) Re: [DCHAS-L] Upcoming peer-led workshop: Empowering Academic Researchers to Strengthen Safety Culture from Robert H. Hill, Jr. copy link
(10 Mar 2025) [DCHAS-L] Formaldehyde detector issues from Melinda Box copy link
(18 Mar 2025) [DCHAS-L] Question about SDS access on other campuses from Tricia Hahn copy link
(18 Mar 2025) [DCHAS-L] Article re: bleach and guanidinium thiocyanate from Jack Reidy copy link
(19 Mar 2025) [DCHAS-L] Monitoring VOCs in darkroom and other art spaces from Tricia Hahn copy link
(20 Mar 2025) [DCHAS-L] A Chemical Perspective on the LA County Fires - a request from Debbie Decker copy link
(20 Mar 2025) [DCHAS-L] Building/chemical storage ventilation during ashfall from Marcy Marino copy link
(20 Mar 2025) [DCHAS-L] Inquiry on Isoamyl Alcohol as a Peroxide Former from Tammy M Lutz-Rechtin copy link
(23 Mar 2025) [DCHAS-L] CHAS Open Business Meeting from Monique Wilhelm copy link
(24 Mar 2025) [DCHAS-L] Disposal of human skeleton from Saneliswa Magagula copy link
(24 Mar 2025) [DCHAS-L] Link to the Lab Incident Dashboard from Robin M. Izzo copy link
(27 Mar 2025) [DCHAS-L] EPA Methylene Chloride Monitoring from Ingrid Gm copy link
(27 Mar 2025) [DCHAS-L] FW: Inquiry from an art conservator from Membership Chair copy link
(27 Mar 2025) Re: [DCHAS-L] EPA Methylene Chloride Monitoring from paracelcusbombastusvon@juno.com copy link
(02 Apr 2025) [DCHAS-L] "Zoom" phones/phone calling in labs from Margaret Rakas copy link
(04 Apr 2025) [DCHAS-L] A real-world question 04.04.2025 from Nancy Carraway copy link
(16 Apr 2025) [DCHAS-L] Register Now for CHAS Professional Development Workshops – May 5–9 from Kali Miller copy link
(22 Apr 2025) [DCHAS-L] May 8, Lithium-Ion Battery Safety: Risks, Challenges, and Public Awareness from Joe Sabol copy link
(25 Apr 2025) [DCHAS-L] Hazardous Materials Specialist Position at UCLA from Kolodziej, Christopher copy link
(29 Apr 2025) [DCHAS-L] Isoflurane monitoring from Paduraru, Peggy copy link
(02 May 2025) Re: [DCHAS-L] Another legend is lost from Robert H. Hill, Jr. copy link
(12 May 2025) [DCHAS-L] FW: These new articles for ACS Chemical Health & Safety are available online. from Chung, Amanda Brittany copy link
(20 May 2025) [DCHAS-L] DCM Rule Implementation – Seeking Peer Insights and Collaboration from Saneliswa Magagula copy link
(20 May 2025) [DCHAS-L] Fw: EPA Proposes Temporary Relief to Ensure Lab Compliance with Methylene Chloride Regulations… from Ellen M. Gordon copy link
(03 Jun 2025) [DCHAS-L] Legacy chemicals and old MSDSs from Monona Rossol copy link
(04 Jun 2025) [DCHAS-L] Controlled pyrophoric fire? from Jessica Martin copy link
(10 Jun 2025) [DCHAS-L] UMass EHS is hiring! from Kristi Ohr copy link
(01 Jul 2025) [DCHAS-L] Use of Fume Hood "Max Height"stickers with alarms vs just alarms from Margaret Rakas copy link
(01 Jul 2025) [DCHAS-L] Call for Nominations from Robin M. Izzo copy link
(01 Jul 2025) [DCHAS-L] Fume hood cleaning from SYLVIA TARINBROUSSEAU copy link
(04 Jul 2025) [DCHAS-L] Fwd: Science News Summary for Fri, Jul 4, 2025 from Stephen Taylor copy link
(21 Jul 2025) [DCHAS-L] How should DCM be handled in a chemical hygiene plan? from Jonathan Dannatt copy link
(23 Jul 2025) [DCHAS-L] ICYMI - Proposal to shut down the CSB from Frankie Wood-Black copy link
(30 Jul 2025) [DCHAS-L] Chromatography Refrigerator for FPLC-20% ethanol cleaning issue from Margaret Rakas copy link
(07 Aug 2025) [DCHAS-L] 2 weeks to go!!! New ACS 2YC CHAS Chat: Green Chemistry Resources and Solvent Alternatives / Lab… from Henry, Dwayne F copy link
(11 Aug 2025) [DCHAS-L] ACS Fall 2025 Events - Come Meet DCHAS! from Membership DCHAS copy link
(15 Aug 2025) [DCHAS-L] CHAS Programming at the Fall Meeting from Robin M. Izzo copy link
(25 Aug 2025) [DCHAS-L] Optimal Number of Students per TA/Instructor in General Chemistry Labs from Leach, Patricia copy link
(27 Aug 2025) [DCHAS-L] Service Dogs in Teaching Laboratory from Kayla Johnson (she/her) copy link
(02 Sep 2025) [DCHAS-L] NEW EPISODE: EYEWASH TRAINING from Jessica Martin copy link
(05 Sep 2025) [DCHAS-L] Input Requested: Lab Notebook Pedagogy & Safety Practices from David EldrEdge copy link
(08 Sep 2025) [DCHAS-L] New rules for ISEF from Mark Turner copy link
(10 Sep 2025) [DCHAS-L] DCHAS: Mothers-to-be in organic chem labs. from David EldrEdge copy link
(18 Sep 2025) [DCHAS-L] Call for Abstracts – CHAS Symposia at ACS Spring 2026 from Martinelango, Kalyani (KK) copy link
(18 Sep 2025) [DCHAS-L] Some tweaks to the ilpi.com web site from Rob Toreki copy link
(03 Oct 2025) [DCHAS-L] Peroxide strips and 2-propanol from Laurie Yoder copy link
(16 Oct 2025) [DCHAS-L] Ceramics studio ventilation design - best practices from Melinda Box copy link
(21 Oct 2025) [DCHAS-L] Sensitization Event - OSHA Recordable? OSHA Reportable? from Jessica Martin copy link
(21 Oct 2025) [DCHAS-L] Fwd: SDS PDF Accessibility and Title II - What Guidelines Are Others Using? from Membership DCHAS copy link
(22 Oct 2025) [DCHAS-L] General trash removal from labs from Mabrouk, Patricia copy link
(22 Oct 2025) [DCHAS-L] teaching chem equipment/chemicals management question from Ellen M. Gordon copy link
(30 Oct 2025) [DCHAS-L] Fume Hood Recertification from Filiberto Palacios copy link
(31 Oct 2025) [DCHAS-L] CORRECTION: JUST ANNOUNCED!!! New ACS CHAS 2YC Chat: You are Now in Charge of Safety, Now What? /… from Henry, Dwayne F copy link
(08 Nov 2025) [DCHAS-L] DCM Commentary? from mulcahy@safety.acs.org copy link
(09 Nov 2025) [DCHAS-L] LESS THAN 2 WEEKS LEFT!!! New ACS CHAS 2YC Chat: You are Now in Charge of Safety, Now What? / Lab… from Henry, Dwayne F copy link
(17 Nov 2025) [DCHAS-L] Disposal of broken glass/ autosampler vials from davivid copy link
(17 Nov 2025) [DCHAS-L] Fwd: [DCHAS-L] Disposal of broken glass/ autosampler vials from SYLVIA TARINBROUSSEAU copy link
(19 Nov 2025) [DCHAS-L] PHS and Novel Chemicals in Animals Institutional Benchmarking Questions from Katie Woolard copy link
(19 Nov 2025) [DCHAS-L] Seating(?) in Chemistry Labs from Murphy, Dr. Ruth Ann copy link
(05 Dec 2025) [DCHAS-L] Staying Safe During Stressful Times – Let’s Share Strategies from Gmurczyk, Marta copy link
(07 Dec 2025) [DCHAS-L] New Article from 000006c59248530b-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU copy link
(08 Dec 2025) Re: [DCHAS-L] Staying Safe During Stressful Times – Let’s Share Strategies from Clark, Eric J copy link
Subject-Based Groupings
These groups contain two or more messages with the same normalized subject, but no confirmed In-Reply-To relationship was available within this year.
New Article copy link
(12 Mar 2025) [DCHAS-L] New Article from 000006c59248530b-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU
(06 Apr 2025) [DCHAS-L] New Article from 000006c59248530b-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU
(21 May 2025) [DCHAS-L] New Article from 000006c59248530b-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU
(26 Jun 2025) [DCHAS-L] New Article from 000006c59248530b-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU
(28 Jul 2025) [DCHAS-L] New Article from 000006c59248530b-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU
(17 Aug 2025) [DCHAS-L] New Article from 000006c59248530b-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU
Unthreaded Posts
These posts do not have confirmed reply links and do not share a normalized subject with another unthreaded post in this year.
(02 Jan 2025) [DCHAS-L] Safety Intern Perspective from Neal Langerman
(13 Jan 2025) [DCHAS-L] CHO's Biggest Challenges from James Kaufman
(20 Jan 2025) [DCHAS-L] CHO's Biggest Challenge from James Kaufman
(30 Jan 2025) [DCHAS-L] New Gist of the List and ACS CHAS articles of interest from mulcahy@safety.acs.org
(30 Jan 2025) [DCHAS-L] Just Announced : CHAS Chat: Navigating Organic Solvent Use in Laboratories / RE: [DCHAS-L]… from Henry, Dwayne F
(31 Jan 2025) [DCHAS-L] Virtual Lab Safety/Research Symposium Feb 10-12 from Margaret Rakas
(10 Feb 2025) [DCHAS-L] FW: GEOC diversity symposium at ACS from Membership Chair
(10 Feb 2025) [DCHAS-L] Fwd: Stay Ahead in Lab Safety – Upcoming Training, Webinars & Resources from James Kaufman
(14 Feb 2025) Re: [DCHAS-L] Safety with Lab Glassware from lhlatimer**At_Symbol_Here**MINDSPRING.COM
(19 Feb 2025) [DCHAS-L] Upcoming Lab Safety Events - Free Webinar, In-person course and more! from Stephen Taylor
(24 Feb 2025) [DCHAS-L] FW: Psychology and chemistry collaboration from Membership Chair
(27 Feb 2025) [DCHAS-L] Job Opening: Chemical Hygiene Officer at Memorial Sloan Kettering from Pramanik, Sunipa
(27 Feb 2025) [DCHAS-L] Upcoming peer-led workshop: Empowering Academic Researchers to Strengthen Safety Culture from Denlinger, Kendra
(27 Feb 2025) [DCHAS-L] CF Industries is Recruiting a Project Chemist/Laboratory Safety Champion from Thomas, Donald
(03 Mar 2025) [DCHAS-L] 🔬 Your expertise can help shape a new Lab Training podcast! 🎙️ from Jessica Martin
(07 Mar 2025) [DCHAS-L] CHP Review Prep Class from James Kaufman
(10 Mar 2025) [DCHAS-L] Job opportunity from Kristi Ohr
(10 Mar 2025) [DCHAS-L] Job Posting-Webster University from Nora Dunkel
(11 Mar 2025) [DCHAS-L] Take Survey to Weigh In on New Podcast! from Jessica Martin
(17 Mar 2025) [DCHAS-L] Podcast Survey - Deadline 03-28-2025 from Jessica Martin
(18 Mar 2025) [DCHAS-L] Invitation to Present - Fall 2025 WCC Symposium: Aspects of Navigating Reproductive Health in a… from Samuella Sigmann
(22 Mar 2025) [DCHAS-L] Spring Professional Workshop Series from Denlinger, Kendra
(24 Mar 2025) [DCHAS-L] DCM alternatives from Peter Reinhardt
(25 Mar 2025) [DCHAS-L] Podcast Survey: Closes THIS FRIDAY! from Jessica Martin
(04 Apr 2025) [DCHAS-L] Federal cuts impact NIOSH from Peter Reinhardt
(21 Apr 2025) [DCHAS-L] CHP Prep Review Class from James Kaufman
(27 Apr 2025) [DCHAS-L] Safety Squeeze Blog from James Kaufman
(30 Apr 2025) [DCHAS-L] Workshop on Laboratory Safety Postponed Until 2026 from Schroeder, Imke
(01 May 2025) [DCHAS-L] Fwd: Please Pass the word- ACS Webinar May 5 on Fume Hood Troubleshooting from Debbie Decker
(27 May 2025) [DCHAS-L] Fewer Government Resources—Now What? Join Peer-Led Safety Communities from Anthony Appleton
(28 May 2025) [DCHAS-L] FW: Methylene Chloride Benchmarking Survey Now Open from Chung, Amanda Brittany
(04 Jun 2025) [DCHAS-L] CSB from Neal Langerman
(14 Jun 2025) [DCHAS-L] Western Regional Meeting 2025 - call for papers from Debbie Decker
(15 Jun 2025) [DCHAS-L] ACS Leadership - Director at Large from Neal Langerman
(15 Jun 2025) [DCHAS-L] Fwd: Western Regional Meeting-Oct 2025 in San Jose CA from Debbie Decker
(16 Jun 2025) [DCHAS-L] Call for Presentations: Western Regional Meeting, October 2025 from Daniel R Kuespert
(18 Jun 2025) [DCHAS-L] DCHAS Executive Committee Meeting Tomorrow June 19 @ 12pm EST from Chung, Amanda Brittany
(20 Jun 2025) [DCHAS-L] Call for Symposia from Denlinger, Kendra
(25 Jun 2025) [DCHAS-L] Comment on EPA DCM Standard - Extension for Labs and more from Robin M. Izzo
(28 Jun 2025) [DCHAS-L] For those who want to track current regulatory changes from Frankie Wood-Black
(30 Jun 2025) [DCHAS-L] ChatGPT Tells User to Mix Bleach and Vinegar from Rob Toreki
(01 Jul 2025) [DCHAS-L] Safer Science Summits Video - would love for you all to share and provide any feedback from Stephen Taylor
(09 Jul 2025) [DCHAS-L] Western Regional Meeting call for presentations from Daniel R Kuespert
(11 Jul 2025) [DCHAS-L] Fwd: Science News Summary for Fri, Jul 11, 2025 from Stephen Taylor
(18 Jul 2025) [DCHAS-L] Fwd: Science News Summary for Fri, Jul 18, 2025 from Stephen Taylor
(24 Jul 2025) Re: [DCHAS-L] How should DCM be handled in a chemical hygiene plan? from Lindsay Henderson
(25 Jul 2025) [DCHAS-L] Fwd: Science News Summary for Fri, Jul 25, 2025 from Stephen Taylor
(01 Aug 2025) [DCHAS-L] Lab Safety Courses from James Kaufman
(01 Aug 2025) [DCHAS-L] Fwd: Science News Summary for Fri, Aug 1, 2025 from Stephen Taylor
(05 Aug 2025) [DCHAS-L] Fwd: August Lab Safety Courses: Biosafety, Lab Waste, and More from James Kaufman
(15 Aug 2025) [DCHAS-L] Job Opening - Director Environment Health Safety in Dallas from Martinelango, Kalyani (KK)
(17 Aug 2025) [DCHAS-L] DCHAS EC Meeting Monday, 8/19, @ 11:45am - 1:45pm from Chung, Amanda Brittany
(18 Aug 2025) [DCHAS-L] Fwd: Science News Summary for Fri, Aug 15, 2025 from Stephen Taylor
(22 Aug 2025) [DCHAS-L] Fwd: Science News Summary for Fri, Aug 22, 2025 from Stephen Taylor
(23 Aug 2025) [DCHAS-L] Happenings at Council from Frankie Wood-Black
(23 Aug 2025) [DCHAS-L] Information about potential support for Masters/PhD students affected by Funding Cuts from Frankie Wood-Black
(26 Aug 2025) [DCHAS-L] Fwd: Funding Alert: $2.5M in ACS Grants Available | August 26, 2025 from Frankie Wood-Black
(29 Aug 2025) [DCHAS-L] Fwd: Science News Summary for Fri, Aug 29, 2025 from Stephen Taylor
(03 Sep 2025) [DCHAS-L] Coming Soon - Research Safety Manager Position from Brandon Chance
(04 Sep 2025) [DCHAS-L] CHP Annual Review from James Kaufman
(05 Sep 2025) [DCHAS-L] Fwd: Science News Summary for Fri, Sep 5, 2025 from Stephen Taylor
(19 Sep 2025) [DCHAS-L] ACS Spring 2026 Chronic Toxicology in the Lab Symposium - UNC JST from Chung, Amanda Brittany
(19 Sep 2025) [DCHAS-L] Fwd: Science News Summary for Fri, Sep 19, 2025 from Stephen Taylor
(02 Oct 2025) [DCHAS-L] Improve Your CHP from James Kaufman
(03 Oct 2025) [DCHAS-L] Safety Engineer at the University of Illinois Urbana-Champaign from Chainani, Edward Torres
(07 Oct 2025) [DCHAS-L] EPISODE OUT NOW: SAFETY CLIMATE AND DOV ZOHAR from Jessica Martin
(09 Oct 2025) [DCHAS-L] Fwd: Laboratory Safety Training and Chemical Hygiene Manager - SUNY Brockport from Membership DCHAS
(16 Oct 2025) [DCHAS-L] Call for Nominations - ACS Division of Chemical Health and Safety Awards from Robin M. Izzo
(19 Oct 2025) [DCHAS-L] CHemical Hygiene Plan Review Support from James Kaufman
(20 Oct 2025) [DCHAS-L] SPECIAL MINI PODCAST EPISODE OUT NOW: ACS NERD 2025 from Jessica Martin
(26 Oct 2025) [DCHAS-L] Fwd: Science News Summary for Fri, Oct 24, 2025 from Stephen Taylor
(28 Oct 2025) [DCHAS-L] Call for Nominations from Robin M. Izzo
(04 Nov 2025) [DCHAS-L] NEW EPISODE OUT NOW: ARE WE TEACHING INCOMPETENCE? from Jessica Martin
(04 Nov 2025) [DCHAS-L] We're Hiring: Chemical Safety Officer Opening at UChicago from Chandra Man Karki
(08 Nov 2025) [DCHAS-L] More peer reviewers out there? from mulcahy@safety.acs.org
(13 Nov 2025) [DCHAS-L] Bibulous Paper Disposal from Filiberto Palacios
(19 Nov 2025) [DCHAS-L] 1 DAY TO GO/MORE SPOTS NOW OPEN!!! New ACS CHAS 2YC Chat: You are Now in Charge of Safety, Now… from Henry, Dwayne F
(26 Nov 2025) Re: [DCHAS-L] CHAS November 2025 Newsletter from David EldrEdge
(04 Dec 2025) [DCHAS-L] EPISODE OUT NOW: SAFETY WORK from Jessica Martin
(05 Dec 2025) [DCHAS-L] 2 Safety Positions Open at Northeastern University (Boston MA) from Brian D'Amico
(10 Dec 2025) [DCHAS-L] CHP Review Opportunity from James Kaufman
(26 Dec 2025) [DCHAS-L] Local Section Safety Committees from James Kaufman
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