ISO 23767:2021 pdf free download – Children’s furniture一Mattresses for cots and cribs一Safety requirements and test methods.
Where projections, parts or assemblies are rigidly mounted on a rod or shaft designed to rotate together with the projections, parts or assemblies, the rod or shaft shall be clamped to prevent rotation during the test.
8.3.1.2.3 Tension test
Apply a tensile force gradually over approximately 5 s and maintain the force for (10 ± 2) s to the part through a clamp or other suitable means. Apply a force of
— 50 N where the largest dimension is 6 mm, or
— 90 N where the largest dimension is >6 mm.
If the part becomes detached, check whether the part fits wholly within the small parts cylinder (5).
8.3.2 Accessibility to filling materials
8.3.2.1 General
The tests may be carried out on a separate sample.
8.3.2.2 Requirements
8.3.2.2.1 Mattress cover made of woven fabrics
When tested in accordance with 8.3.2.3.1, the maximum slippage of thread shall be 7 mm.
8.3.2.2.2 Mattress covers made of other materials
When tested in accordance with 8.3.2.3.2, the force of rupture shall be greater than 60 N.
8.3.2.2.3 Removable mattress covers
The means to close/attach removable covers shall not allow a child to have access to filling materials.
This requirement is met if one of the following conditions is fulfilled:
— a minimum force of 50 N is required to open the closing system;
— two actions (e.g. push and twist) are necessary to open the closing system, the first of which shall be maintained while the second is carried out;
— two independent actions are necessary to open the closing system that shall be operated simultaneously;
— the use of a tool is required to open the closing system;
— a non-removable inner cover is provided to avoid accessibility to the filling material.
8.3.2.2.4 Strength of slide fasteners (zip)
When tested in accordance with 8.3.2.3.3, no slide fastener (zip) shall open.
8.3.2.2.5 Strength of seams
When tested in accordance with 8.3.2.3.4. it shall not be possible to insert the front part of a 12 mm diameter probe (5.11) into any opening in the seam or cover material by more than 6 mm.
8.3.2.3.4 Test of seams
The test shall be carried out in accordance with ISO 8 124-1 on the mattress as delivered.
Attach the clamps at the most onerous position of the mattress cover not less than 30 mm apart and equidistant to the seam.
Apply a force of (70 ± 2) N gradually over a period of approximately 5 s. Maintain the force for 10 s. Determine whether it is possible to insert the front part of a 12 mm diameter probe (5.11) under a force of 10 N or less.
8.4 Hazards due to edges and protrusions (see A.4.6)
Mattresses shall not have sharp edges or points protruding before and after testing.
8.5 Structural integrity (see A.4.7)
8.5.1 Shrinkage
After cleaning/washing and drying twice in accordance with the manufacturer’s instructions, the resulting shrinkage in the fabric covering materials shall not prevent removable fabrics from being refitted, and the dimensions of the mattress shall still meet the requirements of 8.1.