ISO 16121-4:2011 PDF

Name: ISO 16121-4:2011 — Road vehicles — Ergonomic requirements for the driver's workplace in line-service buses — Part 4: Cabin environment
SKU: ISO 16121-4:2011
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Road vehicles — Ergonomic requirements for the driver's workplace in line-service buses — Part 4: Cabin environment

Название (английский):

ISO 16121-4:2011

Road vehicles — Ergonomic requirements for the driver's workplace in line-service buses — Part 4: Cabin environment

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 6
Дата публикации:: 28 июля 2011 г.
Издание:: ISO IS 16121 edition 2 version 1
ICS:: 13.180

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Описание (английский):

ISO 16121-4:2011 specifies minimum requirements for the cabin environment. ISO 16121-4:2011 applies to the driver's workplace in low-floor line-service buses designed for the carriage of passengers, comprising more than eight seats in addition to the driver's seat, and having a maximum weight exceeding five metric tonnes and an overall width exceeding 2,30 m.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 16121-4:2011 defines minimum ergonomic requirements for the driver's cabin environment in low-floor line-service buses. It applies to buses designed to carry passengers (more than eight seats besides the driver), with a maximum weight over five metric tonnes and an overall width greater than 2,30 m. The standard complements other parts of ISO 16121 and focuses on climate, ventilation, air quality and noise to support driver comfort, visibility and safety.

Key Topics

Climate and heating

The cab climate system (heating and optionally air conditioning) must provide an acceptable interior environment year‑round and be controllable independently from the passenger compartment.
Annex A recommends that the driver area be controllable between 18 °C and 25 °C, with target temperatures attainable within 30 minutes from heating start (engine at operating temperature). Head-area temperatures should be about 1–3 °C cooler than the footwell. Adjacent surfaces (excluding external windows) should remain >15 °C once target temperature is reached.

Ventilation

A ventilation fan shall have at least three speed settings.
Additional adjustable air nozzles should provide directed air jets for the driver and be closable when not required.
The cab may be ventilated with external ambient air or re‑circulated cabin air, subject to client/manufacturer agreement.

Windscreen defrosting and demisting

Systems must keep front and side driving views clear in operation and meet the performance/measurement guidance of SAE J381.
Particular attention is required for lateral visibility windows called out in ISO 16121‑2.

Air quality and filtration

Annex B provides recommended cabin air filter performance measured per ISO/TS 11155 series. Example particle-efficiency benchmarks at 200 m3/h include: >30% (0.5–1.0 µm), >42% (1.0–2.0 µm), >66% (2.0–3.0 µm), >84% (3.0–5.0 µm), >90% (5.0–10.0 µm).
Recommended gas-efficiency guidance (measured at 200 m3/h) includes performance thresholds for common gaseous challenges (e.g., n‑butane, toluene, SO2) as summarized in Annex B.

Noise limits

Driving noise (Leq over 2 min at 50 km/h) shall not exceed 70 dB(A) at the driver’s ear height (ISO 5128 method). Stationary idle noise shall be **

ISO 16121-4:2011 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Технические детали

ISO 16121-3:2005

Road vehicles — Ergonomic requirements for the driver's workplace in line-service buses — Part 3: Information…

ISO 16121-2:2005

Road vehicles — Ergonomic requirements for the driver's workplace in line-service buses — Part 2: Visibility

ISO/TS 11155-2:2002

Road vehicles — Air filters for passenger compartments — Part 2: Test for gaseous filtration

BS ISO 5128:2023

Acoustics. Measurement of interior vehicle noise