Overview
ISO 20957-7:2020 is the International Organization for Standardization (ISO) safety standard for stationary rowing training equipment. It defines additional specific safety requirements and test methods for rowing-type stationary training machines and is intended to be read together with the general safety requirements in ISO 20957‑1. The standard applies to rowing equipment classes H, S, I and accuracy classes A, B, C.
Key topics and technical requirements
The standard covers design, performance and verification requirements with specified test methods. Major technical points include:
- Temperature rise: Accessible surfaces must not exceed ≤ 65 °C (tested per Clause 6.3).
- Seat security: Seat must not derail when a load of ≥ 100 N is applied in all directions (Clause 5.2.4 and 6.2).
- Intrinsic loading: Equipment shall withstand 2.5 × the maximum user body mass ±5% specified by the manufacturer, or 2 500 N, whichever is greater (Clause 5.3, tested in 6.4).
- Handles and motion: For flexible‑connected handles (rope, belt, chain) the handle mass without flexible member ≤ 600 g and handle travel > 1 600 mm measured from foot rest centre to handle centre (Clause 5.4).
- Ropes/belts/chains: Attachment systems shall withstand a specified static load (see Clause 5.5 and 6.1.6 for the defined test procedure).
- Foot straps and supports: Each foot strap must resist a pull of ≥ 500 N; each foot support must resist a push of ≥ 1 000 N (Clauses 5.6–5.7 and tests in 6.5–6.6).
- Endurance: Fatigue testing of cycles - 12 000 cycles for class H and 100 000 cycles for classes S and I - under maximum user load and maximum resistance (Clause 5.8, test 6.7).
- Stability: Equipment shall not tip over during stability testing (Clause 5.9, test 6.8).
- Power display accuracy (Class A): For outputs ≥ 50 W tolerance ±10%; for