Freezer Compartment Temperature ( Household Refrigerators and Household Freezers ). Freezer compartment temperatures are to be measured at the geometric center of the filled packages described below , with the packages located so the temperature measurement stations approximate the locations shown in Figure 7-2.
BND-RT04 Sawdust test package AHAMHRF-1 2007/ SASO 2664-2007
Temperatures are to be measured by unweighted thermocouples , located in the geometric center of packages , measuring approximately 5×4 x 11/ inches ( approximately 13 x 10×4 cm ).
Size(mm) | Density Tolerance(Kg/m3) | Weight Tolerance |
130±6 x 100±4 x 40±2 | 560±80 | 290±40 |
The packages are to be sealed and are to contain a liner or wrapper that makes them moisture and vapor – proof . The packages are to be filled to a density of 35±5 lbs . per cu . ft .(560±80 kg / m ³) with hardwood sawdust that has been water – soaked or alternately is to be an equivalent package of frozen food such as chopped spinach .
The freezer compartment is to be loaded with 75% of the maximum number of filled packages that can be fitted into the compartment . The 75% load is to be fitted into the compartment ( s ) so as to permit air circulation around and above the load .
The air gap around the freezer compartment loadistobe1/to1/inches(1.5 to 4 cm ) with the packages in a pyramid or tiered form if necessary to properly locate the thermocouples . Packages shall rest on the bottom of the liner or on top of a trivet if furnished .
NOTE:
In order to keep packages from shifting and destroying the air gap , a wire grid with small , non – thermally conductive spacers for contact with freezer liner may be used .
Each shelf of freezers and freezer sections of combination refrigerator – freezers , where applicable , is to be loaded to 75% of its capacity in pyramid or tiered form , as necessary , for the proper location of the thermocoupled frozen food package .
Freezer door shelves are to be loaded with the maximum number of filled packages that can be retained on each shelf without added restraints . A thermocouple is to be placed at the geometric center of a package located at the vertical centerline of each shelf so that it will be approximately 2 inches (5.1 cm ) from the surface of the inner door liner and 21/2 inches (6.4 cm ) from the shelf surface as indicated in Figure 7-3.
If the interior arrangements of the freezer compartment shelves do not conform with those shown in Figure 7-2, measurements are to be taken at locations selected to represent the intent of the standard . The locations selected are to be recorded . The recorded temperature at any given point during a cycle of operation with the temperaturebeingreadatregularintervals not exceeding 4 minutes .