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Appendix KOption List
284
The sheet offers protection against the following chemical agents.
Protects against Does not protect against
Boric acid
Sulfuric acid
Nitrogen
Ammonia gas
Carbonic acid gas
Phenol
Glycerin
Ammonia water
Calcium chloride
Developing fluid (hypo)
Acetaldehyde
Lard
Hexane
Lubricating oil
Benzene
Butane
Carbonic acid
Chlorinated solvents
Napthalene
Soy bean oil
Toluene
For information on chemical agents not listed in the table above, please inquire whether or not protection is offered
(if the chemical agent is one against which silicone rubber is recognized as offering protection, please use this
product even if the agent is not listed in the “Protects against” column of the table above).
Replacement Battery ... 3G2A9-BAT08
This is a lithium battery used for memory backup.
Memory Unit ... NT-MF261
This is a dedicated unit for reading/writing the screen data and the system programs in an NT31/NT31C. Data is
transmitted by DIP switch setting at the memory unit.