BS ISO 18885-3-2021 PDF

Full title and description

BS ISO 18885-3:2021 — TPMS snap-in valves — Part 3: Performances. This British adoption of the ISO document specifies test methods for tyre-pressure‑monitoring‑system (TPMS) snap‑in tubeless valves that determine minimum levels of performance required for such valves.

Abstract

This part of ISO 18885 defines the performance test methods to assess TPMS snap‑in valves. The tests are intended to establish minimum acceptable performance levels for valve air‑tightness, mechanical integrity and environmental durability when used in passenger‑vehicle applications.

General information

• Status: Published (international ISO edition; adopted as a British Standard).
• Publication date: ISO edition published November 2021 (ISO reference edition 2, 2021‑11); BS adoption published December 22, 2021.
• Publisher: International Organization for Standardization (ISO); British Standards Institution (BSI) for the BS adoption.
• ICS / categories: 83.160.01 (Tyres).
• Edition / version: Edition 2 (2021).
• Number of pages: ISO original: 13 pages; BS adopted publication: typically issued with additional national foreword/annex and shown as 22 pages in the BSI publication.

Scope

The standard specifies test methods for TPMS snap‑in (tubeless) valves intended for passenger vehicles. Its scope covers the procedures needed to evaluate valve performance and to determine minimum acceptable levels of performance (for example leakage, mechanical retention and environmental durability under specified conditions). The document is focused on test methods rather than design details or materials specifications.

Key topics and requirements

• Definition of performance test methods for TPMS snap‑in tubeless valves.
• Specification of minimum performance levels to be met by valves under test conditions.
• Test conditions and procedures that reproduce service environments relevant to passenger‑vehicle use (temperature cycles, mechanical stresses and environmental exposure are addressed as part of performance assessment).
• Normative references to related parts of the ISO 18885 series (identification, valve environment) to ensure consistent application.
• Acceptance criteria and reporting requirements (tests provide pass/fail or measurement outcomes against the stated minimums).

Typical use and users

Used by automotive OEMs, TPMS valve and component manufacturers, independent testing laboratories, certification bodies and regulatory/standards teams within vehicle supply chains to verify that snap‑in TPMS valves meet minimum performance requirements for safe and reliable operation on passenger vehicles. The standard supports consistency between suppliers and purchasers of TPMS components.

Related standards

ISO 18885 is a multipart series. Relevant related parts include: - ISO 18885‑1:2017 — TPMS snap‑in valves — Part 1: Identification. - ISO 18885‑2:2018 — TPMS snap‑in valves — Part 2: Valve environment. The 2019 edition of ISO 18885‑3 was withdrawn and replaced by the 2021 edition.

Keywords

TPMS, snap‑in valve, tubeless valve, valve performance, test methods, leakage, durability, ISO 18885, valve environment, identification.

FAQ

Q: What is this standard?

A: BS ISO 18885‑3:2021 is the British adoption of ISO 18885‑3:2021, titled "TPMS snap‑in valves — Part 3: Performances". It defines test methods to assess the performance of snap‑in TPMS tubeless valves.

Q: What does it cover?

A: It covers test procedures and the determination of minimum acceptable performance levels for TPMS snap‑in valves (air‑tightness, mechanical performance and environmental durability under specified test conditions). The document focuses on performance testing rather than detailed dimensional design or materials specification (those aspects are covered in other parts of the series).

Q: Who typically uses it?

A: Automotive original equipment manufacturers (OEMs), TPMS valve manufacturers, independent test laboratories, conformity assessment bodies and procurement/specification teams in the tyre and wheel supply chain.

Q: Is it current or superseded?

A: The ISO 18885‑3:2019 edition was withdrawn and superseded by ISO 18885‑3:2021 (Edition 2, published in November 2021); the British adoption was published in December 2021. The 2021 edition is the current published edition.

Q: Is it part of a series?

A: Yes — ISO 18885 is a multipart standard for TPMS snap‑in valves. Relevant parts include Part 1 (Identification), Part 2 (Valve environment) and Part 3 (Performances). Users should consult the series to cover identification, environmental limits and performance testing together.

Q: What are the key keywords?

A: TPMS, snap‑in valve, tubeless valve, performance tests, minimum performance, leakage, durability, ISO 18885.