ISO 9050 Measurement of glass transmittance by FTIR Spectrometer

Detection Target

Measurement of glass transmittance

Overview

This solution conforms to the Glass in building — Determination of light transmittance, solar direct transmittance, total solar energy transmittance, ultraviolet transmittance and related glazing factors. This International Standard specifies methods of determining light and energy transmittance of solar radiation for glazing in buildings. These characteristic data can serve as a basis for light, heating and ventilation calculations of rooms and can permit comparison between different types of glazing. This International Standard is applicable both to conventional glazing units and to absorbing or reflecting solar-control glazing, used as glazed apertures. The appropriate formulae for single, double and triple glazing are given. Furthermore, the general calculation procedures for units consisting of more than components are established.

Apparatus 

HKL-9050 FTIR Spectrometer for Glass Transmittance Measurement

Features

1. Highly stable optical system: Integrated optical bench design, sealed interferometer; with quick humidity status identification function.

2. High-performance electronic system: Latest 24-bit A/D converter, 500kHz A/D conversion speed, equipped with imported high-sensitivity DLATGS detector, ensuring real-time acquisition of spectral data and guaranteeing the authenticity and reliability of the data.

3. User-friendly humidity protection design: Sealed interferometer design, quick humidity status identification, reducing the time required for instrument maintenance by the operator, and solving the biggest hidden danger in the use of infrared spectrometers, i.e., the desiccant can be replaced without opening the cover.

4. Operating software: Spectrum processing: peak labeling, difference spectrum (four arithmetic operations on spectra), smoothing, etc. , spectrum library addition, automatic retrieval and other functions, with commonly used chemical and material spectrum libraries available for customers to choose from.

Technical Parameters

1. Spectral range: 7800-350cm^-1

2. Resolution: Better than 1.0cm^-1

3. Signal-to-noise ratio: 30000:1 (P-P value, 4cm^-1, 1-minute background and sample scan, at 2100cm^-1) RMS value: 150000:1

4. Detector: High-sensitivity imported infrared detector; Advantages: High accuracy of test data, good repeatability, convenient maintenance, and not easily damaged.

5. Beam splitter: Original imported, multi-layer coated potassium bromide.

6. Scanning speed: Microcomputer control and selection of different scanning speeds, continuously adjustable levels, automatic spectrum comparison.

7. Light source: Imported long-life high-intensity air-cooled infrared light source

8. Wavenumber accuracy: 0.01cm^-1

9. Software workstation: Includes 200,000 standard infrared spectrum libraries

10. Noise value: Noise: ＜4.3×10^-5A

11. Stabilized power supply: AC220V, 50Hz

12. Data transmission interface: High-speed USB 2.0

13. Operating system: Windows XP/Vista/Win7/Win8

14. Weight: 14kg

Configuration