not be shut ~ 23_ISA_45_01 ~ not be shut ~ 23_ISA_60_11 ~ not be shut ~ 66_REV_21_25 ~ ~~
 shall not be shut ~ 23_ISA_45_01 ~ shall not be shut ~ 23_ISA_60_11 ~ shall not be shut ~ 66_REV_21_25 ~ ~~