BS EN 60704-2-14:2013+A11:2015

This clause of Part1 is applicable except as follows: 1.1 Scope 1.1.1 General Addition: These particular requirements apply to refrigerators, frozen-food storage cabinets and food freezers (fitted with their accessories) for household and similar use, supplied from the mains or from batteries. 1.1.2 Types of noise Replacement: The methods specified in ISO3743‑1 , ISO3743‑2 and ISO3744 can be used for measuring noise emitted by refrigerators, frozen-food storage cabinets and food freezers. 1.1.3 Size of the source Replacement: The method specified in ISO3744 is applicable to noise sources of any size. When applying ISO3743‑1 and ISO3743‑2 , care should be taken that the maximum size of the refrigerator, frozen-food storage cabinet or food freezer under test fulfils the requirements specified in 1.3 of ISO3743‑1 and ISO3743‑2 . 1.2 Object Addition: These described methods are specified for appliances without an operator present. Requirements for the declaration of noise emission values are not within the scope of this standard. NOTE101 For determining and verifying noise emission values declared in product specifications, see IEC60704‑3 . 1.3 Measurement uncertainty Replacement: The estimated values of standard deviations of sound power levels determined according to this standard are indicated in Table101: Table101 Standard deviations of sound power levels Standard deviation (dB) σr (repeatability) σR (reproducibility) 0,4 0,7 Addition: 1.101 Standard deviation for declaration and verification For the purpose of determining and verifying declared noise emission values according to IEC60704‑3 , the values indicated in Table102 apply: Table102 Standard deviations for declaration and verification Standard deviation (dB) σP (production) σt (total) σM (reference) 0,7 to 1,5 1,0 to 1,7 2,0