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GB/T 5433-2008Test method for the transmittance of domestic glass (English PDF)

日用玻璃光透射比测定方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 30, 2008

Implementation date

September 1, 2009

Scope

GB/T 5433-2008 is the English-translated version of 日用玻璃光透射比测定方法.

GB/T 5433-2008 is the Chinese standard "Test method for the transmittance of domestic glass". Its scope clause reads: This standard specifies the requirements and test methods Daily glass products light transmittance.

This standard applies to the determination of the light transmittance of glass products for daily use. Its clauses include terms and definitions; requirements.

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Document preview — GB/T 5433-2008

National Standard of the People's Republic of China

ICS: 17.180.20
Classification: Y 22
Replacing: GB/T 5433-1985

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Terms and Definitions
4 Requirements

1 Scope

This standard specifies the requirements and test methods Daily glass products light transmittance.

This standard applies to the determination of the light transmittance of glass products for daily use.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

JJG178 ultraviolet, visible, near-infrared spectrophotometer test procedures

3 Terms and Definitions

The following terms and definitions apply to this standard.

3.1

On the human visual system to produce bright colors and feeling of electromagnetic radiation, electromagnetic radiation known as visible. The wavelength range is generally taken

380nm ~ 780nm.

3.2

tau (lambda)

Glass spectral transmittance tau (lambda), with a wavelength of [lambda], the ratio of the transmission spectrum of the glass flux and the incident spectral flux.

3.3

tau Vp

Light transmittance tau Vp under D65 light source, through the glass of the ratio of luminous flux and the incident flux. Glass light transmittance (tau Vp) Mathematics

Expressions such as formula (1).

tau Vp =

780nm

380nm

tau (lambda) Vp (lambda) SD65 (lambda) dlambda

780nm

380nm

Vp (lambda) SD65 (lambda) dlambda (1)

Where.

--- [lambda] the wavelength in nanometers (nm);

tau (lambda) --- the spectral transmittance of the glass;

Vp (lambda) --- Visual Spectrum luminous efficiency function;

SD65 (lambda) relative spectral power --- standard illuminant D65 light source distribution.

4 Requirements

4.1 General Requirements

Laboratory should be kept clean, ambient temperature, humidity, vibration system should meet the test requirements.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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Editions of GB/T 5433

Edition	Title	Revision	Status
GB/T 5433-2008	Test method for the transmittance of domestic glass	current edition	Current
GB/T 5433-1985	Test method for the transmittance of domestic glass	previous edition	Superseded

This page sells the current edition, GB/T 5433-2008. Earlier editions are listed for reference only.

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