GB/T 44438-2024 Furniture - Mattresses - Test methods for the determination of functional characteristics
1 Scope
This document specifies test methods for the determination of the durability, height loss and hardness of mattresses with a height ≥100 mm (and mattress pads when they form a unit with the mattress).
This document applies to adult mattresses for domestic and non-domestic use (excluding water mattresses and air mattresses).
This document does not apply to standalone mattress pads.
Test methods for the assessment of aging, degradation, fire resistance and electrical functions are not included.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1334, Domestic furniture - Beds and mattresses - Methods of measurement and recommended tolerances
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
——ISO Online browsing platform: available at https://www.org/obp
——IEC Electropedia: available at https://www.electropedia.org/
3.1
load curve
deflection curve
curves that are obtained by pressing a load pad into the mattress and measuring the associated value of indentation and force simultaneously
3.2
hardness value
H
determined from load/deflection measurement, in N/mm
3.3
firmness rating
Hs
number (1 decimal) on a scale from 1 to 10 which expresses the firmness of a mattress
3.4
height loss
change in the height of a mattress, as a result of the durability test
Note: The unit is millimeters (mm).
3.5
mattress pad
product, comprising a cover and filling(s), or filling material(s) alone, used in conjunction with a mattress or upholstered bed base
Note: This product is not intended to be used separately.
4 General test conditions
4.1 Preliminary preparation
All conditioning shall be carried out in a standardised climate of (23 ± 2) °C and (50 ± 5) % relative humidity (RH).
The tests shall be carried out in indoor ambient conditions at a temperature between 15 °C and 25 °C. If during a test the temperature is outside of the range of 15 °C to 25 °C, the maximum and/or minimum temperature shall be recorded in the test report.
During conditioning and handling, mattresses shall be kept flat and unloaded.
If a test cannot be carried out as specified, e.g. because a loading pad cannot be used for the application of a force due to the design of product, the test shall be carried out as far as possible as specified.
If necessary, mattress pads shall be prevented from moving during testing by a suitable means, e.g. adhesive tape or pins.
If the product information states that the mattress has a soft side and a firm side, both sides shall be tested using separate mattresses.
4.2 Tolerances
Unless otherwise stated the following tolerance are applicable to the test equipment:
a) all forces shall have an accuracy of ±5 % of the nominal force;
b) all masses an accuracy of ±0.5 % of the nominal mass;
c) all dimensions less than 200 mm shall have an accuracy of ±1 mm of the nominal dimension; the other dimensions shall have an accuracy of ±0.5 %;
d) the tolerance for position of loading pads shall be ±5 mm;
e) the tolerance for measuring point shall be ±20 mm.
Note: For the purposes of uncertainty measurement, test results are not considered to be adversely affected when the above tolerances are met.
Standard
GB/T 44438-2024 Furniture—Mattresses—Test methods for the determination of functional characteristics (English Version)
Standard No.
GB/T 44438-2024
Status
valid
Language
English
File Format
PDF
Word Count
10500 words
Price(USD)
315.0
Implemented on
2025-3-1
Delivery
via email in 1~3 business day
Detail of GB/T 44438-2024
Standard No.
GB/T 44438-2024
English Name
Furniture—Mattresses—Test methods for the determination of functional characteristics
GB/T 44438-2024 Furniture - Mattresses - Test methods for the determination of functional characteristics
1 Scope
This document specifies test methods for the determination of the durability, height loss and hardness of mattresses with a height ≥100 mm (and mattress pads when they form a unit with the mattress).
This document applies to adult mattresses for domestic and non-domestic use (excluding water mattresses and air mattresses).
This document does not apply to standalone mattress pads.
Test methods for the assessment of aging, degradation, fire resistance and electrical functions are not included.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1334, Domestic furniture - Beds and mattresses - Methods of measurement and recommended tolerances
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
——ISO Online browsing platform: available at https://www.org/obp
——IEC Electropedia: available at https://www.electropedia.org/
3.1
load curve
deflection curve
curves that are obtained by pressing a load pad into the mattress and measuring the associated value of indentation and force simultaneously
3.2
hardness value
H
determined from load/deflection measurement, in N/mm
3.3
firmness rating
Hs
number (1 decimal) on a scale from 1 to 10 which expresses the firmness of a mattress
3.4
height loss
change in the height of a mattress, as a result of the durability test
Note: The unit is millimeters (mm).
3.5
mattress pad
product, comprising a cover and filling(s), or filling material(s) alone, used in conjunction with a mattress or upholstered bed base
Note: This product is not intended to be used separately.
4 General test conditions
4.1 Preliminary preparation
All conditioning shall be carried out in a standardised climate of (23 ± 2) °C and (50 ± 5) % relative humidity (RH).
The tests shall be carried out in indoor ambient conditions at a temperature between 15 °C and 25 °C. If during a test the temperature is outside of the range of 15 °C to 25 °C, the maximum and/or minimum temperature shall be recorded in the test report.
During conditioning and handling, mattresses shall be kept flat and unloaded.
If a test cannot be carried out as specified, e.g. because a loading pad cannot be used for the application of a force due to the design of product, the test shall be carried out as far as possible as specified.
If necessary, mattress pads shall be prevented from moving during testing by a suitable means, e.g. adhesive tape or pins.
If the product information states that the mattress has a soft side and a firm side, both sides shall be tested using separate mattresses.
4.2 Tolerances
Unless otherwise stated the following tolerance are applicable to the test equipment:
a) all forces shall have an accuracy of ±5 % of the nominal force;
b) all masses an accuracy of ±0.5 % of the nominal mass;
c) all dimensions less than 200 mm shall have an accuracy of ±1 mm of the nominal dimension; the other dimensions shall have an accuracy of ±0.5 %;
d) the tolerance for position of loading pads shall be ±5 mm;
e) the tolerance for measuring point shall be ±20 mm.
Note: For the purposes of uncertainty measurement, test results are not considered to be adversely affected when the above tolerances are met.
