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JJF 1303-2011: Calibration Specification for Hazemeter
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
JJF 1303-2011	English	329	Add to Cart	3 days [Need to translate]	Calibration Specification for Hazemeter
JJF 1303-1990	English	239	Add to Cart	2 days [Need to translate]	O.T.N. of the 2cm,3cm,5cm Differential Phase Shift Primary Standard

JJF 1303-2011: Calibration Specification for Hazemeter

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration Specification for Hazemeter People's Republic of China National Metrology Technical Specifications Haze meter calibration specifications Issued on. 2011-07-28 2011-10-28 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Haze meter calibration specifications CalibrationSp This specification by the State Administration of Quality Supervision, Inspection and Quarantine approved on July 28, 2011, and from From October 28, 2011 into effect. Focal point. the National Technical Committee on Optical metrology The main drafting units. China Institute of Metrology Participated in the drafting unit. Shandong Institute of Metrology This specification committee commissioned by the National Optical measurement technology is responsible for interpreting The main drafters of this specification. Hou Ping (China Institute of Metrology) Drafters participate. Wang Yu (China Institute of Metrology) Hole Wei (Shandong Province Institute of Metrology)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 Terms (1) 4 Overview (1) 5 Metrological characteristics (2) 6 calibration conditions (3) 6.1 Calibration environmental conditions (3) 6.2 calibration equipment (3) 7 calibration items and calibration methods (3) 7.1 Zero calibration equipment (3) Zero drift haze 7.2 (3) 7.3 haze indication error and repeatability (3) 7.4 transmittance indication error of measurement (4) 8 calibration results presentation (4) 9 Recalibration interval (4) Appendix A haze meter calibration original record (5) Appendix B Calibration Certificate page format (6) Appendix C shows a haze meter calibration error of measurement results Uncertainty Evaluation (7) Haze meter calibration specifications

1 Scope

This standard applies to the measurement of transparent material haze haze meter calibration.

2 Citations

JJF 1032-2005 optical radiation measurement terminology and definitions JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement JJF 1094-2002 measuring instrument characteristics evaluation Determination of GB/T 2410-2008 transparent plastic light transmittance and haze ASTMD1003 transparent plastic haze and light transmittance Standard Test Method (StandardTestMethodfor HazeandLuminousTransmittanceofTransparentPlastics) When using this specification it should be noted that using the currently valid version of the documents cited.

3 Terms

3.1 haze haze Diffuse transmission to the total sample transmittance τt odds ratio τd, then multiplying by 100. And the sign is Hd, a unit. Hd = τdτt × 100 (1) 3.2 transmittance transmittance Incident radiation in the spectral composition, polarization state and the geometric distribution under specified conditions, the transmission of radiation or luminous flux And the ratio of incident flux. It is the sign of τ, unit 1. 3.3 diffuse transmittance diffusetransmittance (Total) flux in the transmission ratio of the diffuse transmission component and the incident flux. Its symbol τd, as a unit.

4 Overview

Haze meter is scattered light transmission characteristics measurement of transparent plastic, glass and other transparent materials, and to haze Quantitative characterization of the instrument. Mainly reflected by a haze meter integrating sphere, a light source, a collimator system, the sample compartment, light traps, a standard Part of the board, photoelectric detectors and signal processing. Integrating sphere to collect transmitted flux, as long as the total area of the sphere of the openings does not exceed an integrating sphere surface reflecting surface Volume of 4%, any diameter integrating sphere can be. Center entrance window and the exit window of the integrating sphere at the same maximum circumference , The angle between the ball and the line connecting the centers of not less than 170 °. Window normal and the incident angle of the exit window center does not exceed 8 °. When the light trap in the working position, the sample is not placed, the axis of the incident beam should pass through the entrance window and the exit window heart. Position of the light detector should be located at the entrance window was a sphere of 90 ° ± 10 °, and upshifts screen to block the entrance window Direct illumination. Irradiating the sample requirements for the one-way parallel beams of light, any light beam can not deviate from the optical axis than 3 °. The beam can not produce halos at any window of the integrating sphere. When a sample is placed in an integrating sphere entrance window, the sample ...