7.0 Impact of date of manufacture stamps on the servicing of portable fire extinguishers Portable fire extinguishers are typically serviced in accordance with AS 1851, which requires a five-yearly hydrostatic pressure testing (six-yearly if using AS 1851-1995).s such, the date of manufacture stamp may be found anywhere on a portable fire extinguisher cylinder, including its base. 4.2 When is a cylinder stamped with the date of manufacture and what does this mean? For cylinders to AS1841.1, the date stamp indicates âthe date of manufactureâ f or the cylinder.
Assuming a white Christmas is having at least one inch of snow on the ground December 25th, the chances are 60% or better over an area including much of the northern Rockies, the northern Great Plains, the Great Lakes area, and most of New England.
When is Christmas in 2014? Christmas in 2014 is on Thursday, the 25th of December. Christmas Day is preceded by Christmas Eve on December 24, and in some countries is followed by Boxing Day on December 26.