Variation in weight of sealed sets

knr · 2019-02-10T20:58:04.000Z

Testing out a new scale we received as a gift. It accurately weighs a test weight, however, while weighing a number of sealed sets (all of which were purchased from Lego shop at home or in store) we are getting different weights. For example, all of 6 Old Fishing Stores are showing different weights. The differences range from 2 to 8 grams. One box seems weigh out of the range at 30 grams heavier. We are finding a 2 to 10 gram variation in a number of sealed sets. We were hoping to use weight when checking other set purchases from retailers such as Walmart. Is this variance in weight of sealed sets normal? Is there a variance range that would be considered "safe" to confirm box contents? Any assistance would be appreciated. Thanks.