On previous occasions, we have discussed the characteristics that allow for the classification of the different types of water slides covered by the applicable European standard UNE-EN 1069-1:2017 + A1:2020.
This standard establishes 13 types of water slides, although this number will soon be reduced, grouped into two main categories:
- Slides for adult users
- Slides for child users
Delving now into the international standards governing safety in water parks, this time we will focus on a specific aspect of the American standard.
The classification of water slides according to ASTM standards, as well as the typology derived from the description of their technical features
Unlike other regulatory systems such as the EN 1069 standard, which are based on numerical classifications (such as height, slope, acceleration, and speed), the ASTM F2376 standard adopts a descriptive approach. It defines each type of water slide based on its design characteristics, mode of use, and the experience it provides to the user.
For the technical team of a resort or hotel, understanding this classification is essential. The name assigned to a water slide is not arbitrary; it determines operational procedures, supervision requirements, and the safety information that must be provided to guests.
The ASTM F2376 standard establishes its classification based on three main criteria:
- The sliding device used by the user for sliding (mat, raft, or other specific equipment).
- The slide path (whether it is curved, straight, has special shapes, etc.).
- The maximum speed that the user can reach.
According to these criteria, the water slides are divided into eight groups under the following nomenclature:
| Type of water slide (ASTM F2376) | Description and key criteria |
| Body slide | Slides in which the user slides without using any type of sliding device. |
| Children’s slide | Designed for users under 48 inches (122 cm) in height. They have very strict requirements, such as a maximum drop of 3 inches (7.6 cm) at the exit and a water depth not exceeding 24 inches (61 cm). |
| Mat slide | Sliding must be performed using a specific mat or carpet designated as the sliding device. |
| Serpentine slide | They are defined by having a curved path, as seen from their geometric trajectory. |
| Speed slide | Slides in which the user reaches or exceeds a speed of 25 feet per second (approximately 7.62 m/s) during the ride. |
| Tube slide | The body of the slide (channel) has a tube shape. They can accommodate one or multiple riders. |
| Specialty vehicle slide | A specific sliding device is used for the ride (different from a mat), which is specified by the manufacturer. |
| Specialty slide | Non-standard designs. This category includes attractions with bowl shapes, half-pipes, or even uphill sections. |
The classification of water slides is always determined by the manufacturer and has a significant impact on factors such as the maximum and minimum height and weight of the user, the use of sliding devices, and the allowance for using flotation devices during the ride.
It is also very important to note that each sliding device or flotation device must have its own safety signage, which must be defined by the manufacturer in accordance with the standard and the classification assigned to the water slide.
For example, if a manufacturer classifies a slide as a children’s slide, the operator already knows that specific water depths must be maintained and access must be controlled based on height. Similarly, a speed slide not only involves high speeds but will likely require a specific sliding position and a landing area (hydro-brake or pool) calculated for those speeds.
Knowing the ASTM classification of your water slides is therefore the first step toward operational safety management aligned with international standards. The real challenge is ensuring that daily operations, maintenance documentation, and facility signage are consistent with this classification.
Were your facilities designed according to ASTM standards and are you unsure if your operational management is correct? Do you need to audit your protocols or update your safety signage to comply with international best practices?
At The Fun Lab, our operational safety consulting service is specifically designed to help operators identify these gaps and establish robust and safe work protocols.
If you would like to conduct a water safety audit and consulting for your water park or pool, do not hesitate to contact us or visit our website for more information about our services.
We will be happy to assist you and support you with any needs related to a water leisure project. Continue browsing our blog to stay updated on our latest news, technical articles, and projects.
