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Cork insulation; a complete illustrated textbook on cork insulation ...

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'. Score<br />

CORKBOARD INSULATED REFRIGERATOR Zll<br />

157.—Notes <strong>on</strong> the Testing of Household Refrigerators.—<br />

While there are no g-enerally accepted and approved methods<br />

for the testing of either ice or machine cooled household re-<br />

frigerators, and \irtuall}' all tests made thus far are subject<br />

to c<strong>on</strong>siderable interpretati<strong>on</strong> as to the results obtained. }et<br />

nuich progress has been made and there is reas<strong>on</strong> to expect<br />

that some suitable and satisfactory standard method of testing<br />

household refrigerators may so<strong>on</strong> be arrived at and be gener-<br />

ally accepted by those most interested in the su1:)ject.<br />

The Chicago Tribune originall)' published some data and<br />

suggesti<strong>on</strong>s by Dr. A\\ A. Evans for a practical "Refrigerator<br />

Card," for refrigerators using ice, which Forest O. Riek<br />

later combined with data from various sources, including the<br />

U. S. Bureau of Standards and the Good Housekeeping Insti-<br />

tute, to produce a refrigerator score card substantially as<br />

I follows<br />

I erator<br />

' should<br />

: readings.<br />

I making<br />

:<br />

REFRIGERATOR SCORE CARD.<br />

Xame of manufacturer<br />

Name or other method of designaling refrigerator<br />

Te'it Item : Perfect Scot?<br />

1. Temperature of food cham'ier 45% — —%<br />

2. Ice ec<strong>on</strong>omy 20 — —<br />

3. Humidity 8<br />

4. Circulati<strong>on</strong> • 7 — —<br />

5. Interior finish 12 — —<br />

6. Drainage 3 — —<br />

7 Exterior finish 5 — —<br />

Total lOOP'o %<br />

EXPEAXATIOX OF SCORE' CARD<br />

1. Tciiipcralurc Test — Standard c<strong>on</strong>diti<strong>on</strong>s for test demand rcfrigto<br />

be in a rooin free from drafts and at an even temperatnrc. Box<br />

not c<strong>on</strong>tain food. Door should not be oriened except when taking<br />

Refrigerator shoi.'d be thoroughh- chilled for 4S hours l)cfore<br />

test. Have the ice chamber full. Place thermometer in the ccn-<br />

"tcr of the food chamlier. ^lake twelve readings at intervals of <strong>on</strong>e hour.<br />

Take room temperature simultaneously. Score as follows:<br />

SCORE FOR TEMPERATURE<br />

Temperature, F Rate<br />

40° 45<br />

45 43<br />

50 36<br />

55 23<br />

60 9<br />

over 60<br />

2. Ice Ecfliioiiiy.— Refrigerator should be th<strong>on</strong>iugblx chilled for 48

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