ISO 8927:1991 PDF

Name: ISO 8927:1991 — Earth-moving machinery — Machine availability — Vocabulary
SKU: ISO 8927:1991
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Earth-moving machinery — Machine availability — Vocabulary

Название (английский):

ISO 8927:1991

Earth-moving machinery — Machine availability — Vocabulary

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 26
Дата публикации:: 24 января 1991 г.
Издание:: ISO IS 8927 edition 1 version 1
ICS:: 01.040.53

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Язык документа:

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Цена:390 €

Описание (английский):

Defines the generally recognized terms and definitions relating to the availability of earth-moving machinery (as defined in ISO 6165) to assist in the communication and understanding of such terms. Annex A provides a means of identifying the field of terms to be used and standardized, to clarify the relationships between the terms. The terms are grouped into availability terms, reliability terms, failure terms, serviceability terms, and time terms. Terms are in English and French, alphabetical indexes are given in English and French.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 8927:1991 - Earth‑moving machinery - Machine availability - Vocabulary defines a standardized vocabulary to describe the availability of earth‑moving machinery (as defined in ISO 6165). The standard provides clear, bilingual (English/French) terms and definitions to improve communication between manufacturers, operators, maintenance teams and procurement specialists. It groups terminology and gives an informative Annex A that clarifies relationships between terms.

Key topics

The standard organizes terms into logical categories and provides commonly used availability metrics and relationships:

Availability terms

Availability: probability that a repairable item is operable when required.
Instantaneous availability: probability an item functions at a specified moment.
Mean availability: ratio of accumulated operating time to total possible operating time.
Formulas shown in the standard include inherent and operational availability, for example:
- Inherent availability Ai = MTBF / (MTBF + MTTR)
- Operational availability Ao = MUT / (MUT + MDT)

Reliability terms

Reliability, inherent reliability, operational reliability (including a condition factor relating operational to inherent reliability).

Failure terms

Failure, failure mode, early (warranty) failure, random failure, wear‑out failure, sudden failure.
Classifications such as primary/secondary, single‑cause/combined‑cause, misuse failure, inherent weakness failure.

Serviceability terms

Serviceability, maintainability, repairability, accessibility, repairable item, storage‑ability.

Time terms

Key time metrics used in availability assessment (e.g., MTBF, MTTR, mean up time, mean down time).

Practical applications and users

ISO 8927 is practical for anyone involved in the lifecycle of earth‑moving equipment:

Equipment manufacturers and design engineers - to use consistent availability and reliability vocabulary in specifications and testing.

Fleet managers and contractors - to interpret maintenance records and availability metrics for operational planning.

Maintenance planners and reliability engineers - to standardize reporting, root‑cause analysis and maintainability assessment.

Procurement and contract authors - to write clear service level agreements (SLAs), warranty clauses and availability requirements.

Using ISO 8927 improves clarity in specifications, performance reporting, failure analysis and helps align teams on metrics such as MTBF, MTTR, inherent availability and operational availability.

ISO 8927:1991 PDF

Abstract

Похожие стандарты

Overview

Key topics

Practical applications and users

Related standards

Технические детали

ISO 6165:1987

Earth-moving machinery — Basic types — Vocabulary

SIST EN ISO 6165:2022

Earth-moving machinery - Basic types - Identification and vocabulary (ISO 6165:2022)

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