Mutual Improvement Classes Mutual Improvement Classes are in order to pass on and preserve the skills of the past. In true MIC tradition, these pages are designed to make this knowledge and information available to all. Mon, 08 Jun 2026 22:48:01 +0000 Mon, 08 Jun 2026 22:48:01 +0000 National Preservation https://www.national-preservation.com/forums/mutual-improvement-classes.43/ Martyn's Law Thu, 04 Jun 2026 20:25:31 +0000 https://www.national-preservation.com/threads/martyns-law.1426131/ https://www.national-preservation.com/threads/martyns-law.1426131/ invalid@example.com (35B) 35B @Lineisclear made reference to the impending burden of Martyn's Law on voluntary organisations:
In an...

Martyn's Law]]> 51 HSE Alert on Welding Fumes - Reclassified as a carcinogenic operation Wed, 03 Apr 2019 11:10:14 +0000 https://www.national-preservation.com/threads/hse-alert-on-welding-fumes-reclassified-as-a-carcinogenic-operation.1346787/ https://www.national-preservation.com/threads/hse-alert-on-welding-fumes-reclassified-as-a-carcinogenic-operation.1346787/ invalid@example.com (T'Bogger) T'Bogger
Anyway, we had a Health and Safety bulletin regarding welding come through at work, and I have seen it posted elsewhere. So some of you may already be aware.

Basically, in light of new information, welding has been reclassified as a carcinogenic operation due to the fumes given off. Namely it can cause lung cancer and possibly kidney...

HSE Alert on Welding Fumes - Reclassified as a carcinogenic operation]]> 6 Common terms and acronyms Thu, 30 Jul 2015 17:42:38 +0000 https://www.national-preservation.com/threads/common-terms-and-acronyms.532518/ https://www.national-preservation.com/threads/common-terms-and-acronyms.532518/ invalid@example.com (SilentHunter86) SilentHunter86
Here's the document - it can be freely edited]]> 3 Coal Quality? Fri, 23 May 2014 14:06:41 +0000 https://www.national-preservation.com/threads/coal-quality.280521/ https://www.national-preservation.com/threads/coal-quality.280521/ invalid@example.com (aldfort) aldfort I've noticed that I seem to be getting more heat out of the coal this year. Our coal on the WSR has come from a Welsh open cast mine for the last few years. It's a little slower burning (actually slower to ignite) than the Russian stuff we had before but I'm not talking about speed of combustion here. I'm talking about weight (or shovelfuls) of coal needed per mile.
I've noticed that during lighting up the...

Coal Quality?]]> MT276 Sun, 18 Dec 2011 22:33:49 +0000 https://www.national-preservation.com/threads/mt276.33959/ https://www.national-preservation.com/threads/mt276.33959/ invalid@example.com (1306 mayflower) 1306 mayflower
Many thanks

Steve]]> 1 National Preservation MIC's Sun, 05 Aug 2007 09:33:13 +0000 https://www.national-preservation.com/threads/national-preservation-mics.9580/ https://www.national-preservation.com/threads/national-preservation-mics.9580/ invalid@example.com (admin) admin Anything that does not come under the current MIC topics please post a new topic here and we'll look into it.
Welcome and enjoy...]]>