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--- safety_and_lab_regulations [2008/02/26 10:49] – hessel
+++ safety_and_lab_regulations [2023/03/27 11:26] (current) – [Chemicals] scholma
@@ Line 1: / Line 1: @@
 ====== Safety ======
-Everyone working in the NanoLab should have received the LION safety regulations and have read them thoroughly. \\  ([[http://www.physics.leidenuniv.nl/divers/Webversie_mei2005.pdf]]). \\
+Everyone working in the NanoLab should have received the LION safety regulations and have read them thoroughly. \\  ([https://www.science.leidenuniv.nl/en/information-for-employees/ohs-department/laboratories]
-{{wiki:Safety_LION.pdf}}
+{{wiki:Safety_LION.pdf}} ).
 The faculty course about chemical safety should be followed as well as the fire extinguishing drill (follow these at the first opportunity).
@@ Line 19: / Line 19: @@
 ===== Chemicals =====
+When you want to start working with chemicals, read the following document: {{ ::working_with_chemicals_.pdf |Working with chemicals}}
 Be //very// careful to avoid eye contact with all chemicals. If you get strong alkalies like resist developers in your eye your vision will almost certainly be damaged! Avoid all skin contact with anorganic chemicals (acids and bases) and avoid their vapours by working in a fume hood. Avoid skin contact and especially inhalation of organic chemicals by working in a downflow bench, cleanbench or fumehood.
-Always hold a bottle with 2 hands and never even think of just holding the cap. Some organics require evacuation of the building if you drop a bottle! If a bottle breaks and chemicals are spilled there may be an explosion danger. Walk to the 3 button wall panel and switch all 3 buttons off so that the room is completely shut down, then warn Ruud Hendrikx or [[Marcel Hesselberth]].
+Always hold a bottle with 2 hands and never even think of just holding the cap. Some organics require evacuation of the building if you drop a bottle! If a bottle breaks and chemicals are spilled there may be an explosion danger. Walk to the 3 button wall panel and switch all 3 buttons off so that the room is completely shut down, then warn Daan Boltje or [[Marcel Hesselberth]].
 Each cleanbench / downflow bench / fume hood has an eye shower on top. Eye showers are single use! Do not twist the cap out of curiosity, once opened they cannot be closed and must be discarded. If you get covered by chemicals there are showers in the hall on each side of the floor.
@@ Line 45: / Line 47: @@
    * Xylene
    * HCL
-   * HNO<SUB>3</SUB>
+   * HNO<sub>3</sub>
    * HF
-   * H<SUB>3</SUB>PO<SUB>4</SUB>
+   * H<sub>3</sub>PO<sub>4</sub>
 You can look up the MSDS at http://www.chemexper.com. Many links to MSDS site can be found at http://www.ilpi.com/msds/.
@@ Line 66: / Line 68: @@
 http://www.pp.okstate.edu/ehs/HAZMAT/gloves5.htm
 Both types will protect your sample from your fingerprints; however, it is very important to use \\ **NON-POWDERED** gloves (these words should be clearly stated on the box).
+==== Which tweezers to use? ====
+The chemical compatibility of plastic tweezers {{:equiment:chemical_compatibility.pdf|}}
+  * CF = PA66/CF30 polyamide 66 reinforced with 30 wt% carbon fibre
+  * CP = PEEK/CF30 polyetheretherketone reinforced with 30wt% carbon fibre
+  * LC = PPS/GF30 polyphenylene sulphide reinforced with 30wt% glass fibre
+  * LP = PPS/GF30 polyphenylene sulphide reinforced with 30wt% glass fibre
@@ Line 101: / Line 117: @@
 The cleanbenches and tables in the labs are not sample storage spaces. If samples are found there they will be immediately removed and stay for a month or so in the 'cupboard of shame', the trash can is the next destination.
+A quick overview of DO's and DONT's:
+   * DO refill the wash bottles when they are almost empty (10%)
+   * DO empty the 1 liter waste bottles (wetbench cleanroom, cross flow sputter lab) in the big waste container (red label)
+   * DO replace acetone/ethanol/IPA when you finish a bottle (you can find full bottles in the yellow chemicals cabinet in 607; yes you need to get out of the cleanroom for it)
+   * DO inform me when we are running low (10%) on consumables (developers, resists, organic solvents, etc)
+   * DO NOT put empty bottles back on the shelf!
+   * DO NOT think it is the responsibility of someone else to refill or inform me. These things do not magically happen by dwarfs in the late evening!
 ===== Glasswork =====
@@ Line 122: / Line 146: @@
 Strong acids and bases go in the container in 607, after neutralization. Very weak aids/bases in very small amounts can be disposed in the cleanroom.
+The containers are colour labelled and have pictograms on them.
+  * Used oil: green colour code, no pictogram
+  * Organic waste: red colour label, left pictogram below
+  * Acid waste: no colour label, right pictogram below
+{{:hazmat_class_3_flammable_liquids.png?100}}{{:images:corrosive.jpg?100}}
-===== Sputtering lab =====
+If you are unsure, __ask__. **Never** mix chemicals (waste or other) if you are not 100% sure.
+===== Sputtering lab 603 =====
 Never move anything else than substrates into the room and never remove anything else than ready samples out of the room.
 Equipment in the room, including multimeters, silverpaint etc. stays there. Tools are all UHV clean.
@@ Line 134: / Line 165: @@
 Clean up and dry the surface after use (much better than you clean the sink at home)
+===== Clean room 612 =====
-===== Clean room =====
 Never use the spin coater without aluminum foil inside. Clean away resist spills immediately.
 Clean up the clean benches after use (much better than you clean the sink at home)
-===== 602 =====
+=== Phone number ===
-Room is under construction...
-===== 607 =====
+===== Chemistry lab 607 =====
 Notify me when chemicals and other consumables are about to be finished.
@@ Line 153: / Line 183: @@
 Clean up and dry the surface after use (much better than you clean the sink at home)
-===== 614 =====
+===== Electron microscopy lab 614 =====
 Nothing except people and microscope specimen go in and out of the room. Never borrow anything without notifying me.
 On the SEM column you can find: