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2. List of UN numbers 1901 to 2000 - Wikipedia

   en.wikipedia.org/wiki/List_of_UN_numbers_1901_to...

   n.o.s. = not otherwise specified meaning a collective entry to which substances, mixtures, solutions or articles may be assigned if a) they are not mentioned by name in 3.2 Dangerous Goods List AND b) they exhibit chemical, physical and/or dangerous properties corresponding to the Class, classification code, packing group and the name and description of the n.o.s.entry [3]

3. List of UN numbers 1001 to 1100 - Wikipedia

   en.wikipedia.org/wiki/List_of_UN_numbers_1001_to...

   n.o.s. = not otherwise specified meaning a collective entry to which substances, mixtures, solutions or articles may be assigned if a) they are not mentioned by name in 3.2 Dangerous Goods List AND b) they exhibit chemical, physical and/or dangerous properties corresponding to the Class, classification code, packing group and the name and description of the n.o.s. entry [2]

4. The 25 best last-minute gifts that will still arrive by Christmas

   www.aol.com/lifestyle/last-minute-christmas...

   The good news is that while a few shipping deadlines have passed for some of our favorite stores, many are still shipping until December 19 — with free shipping, too. Quick Overview Renpho ...

5. Natural refrigerant - Wikipedia

   en.wikipedia.org/wiki/Natural_refrigerant

   Water and oil cannot exceed 33 and 2ppm respectively. Ammonia refrigerant is stored in pressurized containers. When the pressure is released it undergoes rapid evaporation causing the temperature of the liquid to drop until it reaches its boiling point of -33 °C (-28 °F), which makes it useful in refrigeration systems. [25]

6. Chloroethane - Wikipedia

   en.wikipedia.org/wiki/Chloroethane

   Chloroethane, commonly known as ethyl chloride, is a chemical compound with chemical formula CH 3 CH 2 Cl, once widely used in producing tetraethyllead, a gasoline additive. It is a colorless, flammable gas or refrigerated liquid with a faintly sweet odor.

7. Pentafluoroethane - Wikipedia

   en.wikipedia.org/wiki/Pentafluoroethane

   Generally, class B (flammable liquid) hazards require concentrations that exceed the agent's no-observed-adverse-effect level (NOAEL) so extra precautions must be taken to avoid prolonged exposure to the agent. At high temperatures, pentafluoroethane will decompose and produce hydrogen fluoride. This is observable as presence of sharp, pungent ...