ISO 21348-2007 PDF

Full title and description

ISO 21348:2007 — Space environment (natural and artificial) — Process for determining solar irradiances. This International Standard defines a formal process for producing, documenting and specifying solar irradiance products (measurements, reference spectra, empirical and theoretical models, and proxies/indices) intended for use in space systems, materials testing and related applications.

Abstract

ISO 21348:2007 specifies the process for determining solar irradiances and is applicable to measurement sets, reference spectra, empirical models, theoretical models, and solar irradiance proxies or indices that provide solar irradiance products representing parts or all of the solar electromagnetic spectrum. Its purpose is to provide a standard method for specifying solar irradiances for use by space systems and materials users.

General information

• Status: Published (International Standard; confirmed/under systematic review in ISO lifecycle).
• Publication date: May 2007 (2007-05).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 49.140 (Space systems and operations / space environment).
• Edition / version: Edition 1 (2007).
• Number of pages: 12.

General information above based on ISO bibliographic and lifecycle records for ISO 21348:2007.

Scope

Applies to the process for determining and specifying solar irradiances across the electromagnetic spectrum for space-environment applications. The standard covers how to treat measurement sets, reference spectra, empirical and theoretical models, and proxies/indices so that solar irradiance products can be consistently documented and used for spacecraft design, materials exposure testing and related analyses.

Key topics and requirements

• Establishing a documented process for deriving and presenting solar irradiance products (measurements, models, reference spectra, proxies).
• Specification of the spectral coverage, reference conditions, and metadata needed to interpret irradiance products.
• Guidance for the use of measurement sets, empirical and theoretical models, and indices to represent parts or the whole solar spectrum.
• Emphasis on traceability, reproducibility and clear statement of uncertainties and applicable conditions (e.g., air mass, extraterrestrial vs. at‑surface spectra).
• Intended outputs suitable for use by space systems engineers and materials testing practitioners.

Typical use and users

Used by spacecraft and payload engineers, environmental-effects and materials test laboratories, solar/photovoltaic researchers who require well‑specified irradiance inputs, and organizations producing reference solar spectra or irradiance models. Typical applications include thermal analysis, material UV exposure specifications, photovoltaic and sensor performance evaluation, and standardization of irradiance data exchanges.

Related standards

Standards and reference documents commonly associated with ISO 21348 include ASTM E490 (Standard Solar Constant and Zero Air Mass Solar Spectral Irradiance Tables), ASTM G173 (reference terrestrial spectra / AM1.5), and IEC standards on solar simulator and photovoltaic measurement practice (for example IEC 60904 series). National laboratory reference spectra and datasets (e.g., NREL reference spectra) are also commonly used alongside ISO 21348 guidance when producing or applying irradiance products.

Keywords

solar irradiance; spectral irradiance; extraterrestrial spectrum; AM0; reference spectra; space environment; solar spectrum; irradiance models; measurement traceability; materials testing.

FAQ

Q: What is this standard?

A: ISO 21348:2007 is an International Standard that defines a process for determining and specifying solar irradiance products (measurements, reference spectra, models and proxies) for space-environment and materials-use applications.

Q: What does it cover?

A: It covers the method and required information for producing and documenting solar irradiance products, including spectral coverage, reference conditions, metadata and guidance on using measurement sets and models so users can apply irradiances consistently and with known uncertainty.

Q: Who typically uses it?

A: Spacecraft systems engineers, environmental-effects and materials-testing labs, solar/photovoltaic researchers and organizations that develop or use reference solar spectra and irradiance models for testing, analysis and procurement.

Q: Is it current or superseded?

A: The standard was published in May 2007 (Edition 1) and has been subject to ISO's periodic review/confirmation cycle; ISO records show it was reviewed/confirmed in subsequent reviews (most recently confirmed in the ISO lifecycle records). Users should check the ISO catalogue or national standards body for the current confirmation status before purchase or formal citation.

Q: Is it part of a series?

A: ISO 21348 sits within ISO/TC 20/SC 14 (space systems and operations / space environment) and is related by subject to other standards and technical reports covering solar reference spectra and photovoltaic test methods (e.g., ASTM and IEC documents listed above), but it is a standalone ISO document focused on a process for determining irradiances.

Q: What are the key keywords?

A: Solar irradiance, spectral irradiance, extraterrestrial spectrum, reference spectrum, irradiance model, space environment, materials testing.