ISO 7168-2:1999 PDF

Name: ISO 7168-2:1999 — Air quality — Exchange of data — Part 2: Condensed data format
SKU: ISO 7168-2:1999
Price: 25 EUR
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Air quality — Exchange of data — Part 2: Condensed data format

Название (английский):

ISO 7168-2:1999

Air quality — Exchange of data — Part 2: Condensed data format

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 23
Дата публикации:: 8 июля 1999 г.
Издание:: ISO IS 7168 edition 1 version 1
ICS:: 13.040.01

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Описание (английский):

La présente partie de l'ISO 7168 spécifie un format condensé de données destiné à présenter les données relatives à la qualité de l'air. Contrairement au format général de données spécifié dans l'ISO 7168-1, le format condensé réduit la taille du fichier. Ce format concerne tout particulièrement les échanges de fichiers entre plusieurs systèmes informatiques automatisés. Il se limite donc aux informations minimales nécessaires au traitement des données.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 7168-2:1999 - Air quality - Exchange of data - Part 2: Condensed data format defines a compact, machine-oriented file format for exchanging air quality data between automatic data‑processing systems. Unlike the human‑readable general format in ISO 7168‑1, the condensed data format reduces file size and is restricted to the minimum information necessary for automated processing. The standard specifies file structure, character encoding, field formats, file‑naming conventions and a set of normative annexes (A–D) with codes and representations.

Key topics and technical requirements

File structure: Data files are divided into four groups - identification, description, data, and comment - each with specific record types and expected contents.

Character set and control codes: Uses the 7‑bit international information exchange code (ISO/IEC 646). Lines must start and end with a return‑to‑new‑line (RNL) code (LF + CR) to support cross‑platform processing.

File naming rules: File names are limited to 8+1+3 characters and constructed from parameters (see Table 1): station code (SSSSS), date elements (YY, MM, DDD), optional unused fields (X) and a file qualifier (Q) indicating internal status (e.g., V = validated, U = unvalidated, I = internal incomplete). Examples in the standard show daily, monthly, annual and multiannual naming patterns.

Data presentation formats: Defines fixed numerical (N), fixed alphanumerical (A) and variable alphanumerical (V) field formats, plus explicit time formats (YYMMDDhhmm) and geographic fields (latitude/longitude/altitude) referenced to Annexes C and D.

Air quality data encoding: Values are transmitted as integers with an associated exponent (base 10) to express units (per ISO 4226 / ISO 1000). Every datum is paired with a data qualifier code (e.g., U = usable, N = no datum, E = estimated, F = faulty) that indicates validity or special conditions.

Normative and informative annexes: Annexes A–D are normative (character set, measurand codes, geo data presentation, coding of data types), while E–G provide informative examples, file structure diagrams and sample data files.

Applications and users

Who uses it: Environmental monitoring agencies, air quality data managers, instrument manufacturers, software developers, regional networks and researchers exchanging bulk measurement data.

Practical uses: Automated transfer of hourly/daily/monthly measurements between monitoring stations and databases, integration of sensors into national reporting systems, compact archival exchange for bandwidth‑limited links, and standardized imports for analysis pipelines.

Related standards

ISO 7168‑1 (General data format) - human‑readable counterpart

ISO 4226, ISO 1000 (units and prefixes), ISO 6709 (geo‑coordinates), ISO 6879 (measurement performance), ISO/IEC 646 (character set)

Keywords: ISO 7168-2, air quality data exchange, condensed data format, file naming, data qualifiers, measurand codes, automated data processing.

ISO 7168-2:1999 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

SIST ISO 7168-1:2000

Air quality -- Exchange of data -- Part 1: General data format

ISO/IEC 646:1991

Information technology — ISO 7-bit coded character set for information interchange

SIST ISO 4226:2013

Air quality - General aspects - Units of measurement

ISO 10007:2017

Quality management — Guidelines for configuration management

SIST EN ISO 6709:2023

Standard representation of geographic point location by coordinates (ISO 6709:2022)

ISO 6879:1983

Air quality — Performance characteristics and related concepts for air quality measuring methods

SIST ISO 7168-2:2000

Air quality -- Exchange of data -- Part 2: Condensed data format