On 23 August 2017, the European Committee for Standardization (CEN) published new version standard EN 71-14:2014+A1:20171 for the safety of trampolines for domestic use. It’s the amendment 1 (A1) to EN 71-14:2014. The Members of the CEN have begun to adopt the new standard and publish their own national version no later than 28 February 2018. EN 71-14:2014+A1:2017 will become the harmonised standard to give presumption of conformity to the Toy Safety Directive once it’s published in the Official Journal of the European Union (OJEU).
Another amendment with major revisions on the scope (i.e. add buried trampolines), requirements of the warnings, markings and instructions, test method for retaining wall systems, etc. is under developing. The expected voting date of the major revisions is third quarter of 2018.
The changes to the new version EN 71-14:2014+A1:2017 are summarised as follows:
1. Replaced the test load calculation formula under section 6.6 “Mat deflection test” by the following: The test load for small trampolines (mmini) shall be calculated according to equation (4):
2. Added new section 6.7 “Checking upholstery and hazards due to crushing and jamming” and the references adapted to the test in the corresponding sections 4.6 and 4.9.1.
3. Replaced A.9 Mat deflection under Annex A “Rationale” with the following: The intention of the requirement in 4.11 is to ensure that the distance of the mat to the ground or floor is sufficient in order to prevent the mat from contacting the ground or floor while the user is bouncing. Both static and dynamic forces are taken into account. For this reason, a coefficient is used when calculating the mass to be used in the test of 4.11. During the elaboration of this standard, validating tests were made to ensure that this factor takes into account the average weight of the users and their rebound capacity. The choice of applying a factor of 5 times the maximum user weight for the measurement of the mat deflection was based on:
the European standards for gymnastic equipment EN 9132 and EN 132193 and the Australian standard AS 4989:2015 “Trampolines for domestic use”4which all apply this coefficient;
the design of existing toy trampolines which, for the “large and medium trampoline” category, usually have a minimum frame height of 600 mm.
It should be noted that using frame heights below 600 mm while complying with the mat deflection test specified in this standard can induce hardening of suspension systems to the detriment of flexibility of the mat.
A tightening of rebounds area can, however, lead to musculoskeletal disorders of the joints of the lower limbs, pelvis and spine for the lightest users (children under 12 years).
Manufacturers shall therefore integrate this data as part of their safety assessment.
For small trampolines, a factor for measuring the deflection of the jumping mat, which is 2.5 times the maximum weight of the user, is considered sufficient. The small trampoline allows the child to gently bounce up and down until the child is finally able, supported by the tightening of the jump area, to lift the feet off the jumping mat. The spring stimulates the development of the sense of balance and the temporary support by the jump area challenges the tactile sensation. By stimulating these primary senses, these trampolines promote the development of sensory integration in young children.
4. Added the following standard to the bibliography:  AS 4989:2015. Trampolines for domestic use — Safety aspects