Path: Home > JJ > Page41 > JJF 1544-2024

Price & Delivery

US$679.00 · In stock · Download in 9 seconds
JJF 1544-2024: Calibration Specification for Raman Spectrometers
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
Status: Valid

Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
JJF 1544-2024	English	679	Add to Cart	5 days [Need to translate]	Calibration Specification for Raman Spectrometers
JJF 1544-2015	English	509	Add to Cart	4 days [Need to translate]	Calibration Specification for Raman Spectrometers

JJF 1544-2024: Calibration Specification for Raman Spectrometers

---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.
National Metrology Technical Specifications of the People's Republic of China Raman spectrometer calibration specifications Released on 2024-10-19 2025-04-19 Implementation The State Administration for Market Regulation issued Raman spectrometer calibration specifications Raman Spectrometers Replace JJF 1544-2015 Responsible unit. National Medical Metrology Technical Committee Main drafting unit. China Institute of Metrology Beijing Institute of Metrology and Testing Science Xiamen University Participating in the drafting. Wuhan University Jiangxi Institute of Metrology and Testing This standard is entrusted to the National Medical Metrology Technical Committee for interpretation The main drafters of this specification are. Ding Xiang (China National Institute of Metrology) Wu Hong (Beijing Institute of Metrology and Testing Science) Liu Chuan (Xiamen University) Participating drafters. Zhang Jiyan (China National Institute of Metrology) Shen Aiguo (Wuhan University) Zhong Mengqin (Jiangxi Institute of Metrology and Testing) Zhou Feng (China National Institute of Metrology)

Table of contents

Introduction (II) 1 Scope(1) 2 References(1) 3 Terms and definitions (1) 4 Overview(2) 5 Metering characteristics (2) 6 Calibration conditions(3) 6.1 Environmental conditions(3) 6.2 Measurement standards and other equipment (3) 7 Calibration items and calibration methods (4) 7.1 Appearance inspection (4) 7.2 Spectral resolution (4) 7.3 Frequency shift repeatability (4) 7.4 Frequency shift indication error (4) 7.5 Strength repeatability (5) 7.6 Horizontal resolution (5) 7.7 Vertical resolution (6) 7.8 Horizontal distance error (7) 7.9 Longitudinal distance error (8) 8 Expression of calibration results (9) 8.1 Calibration records(9) 8.2 Processing of calibration results (9) 9 Recalibration interval (9) Appendix A Raman spectrometer calibration raw record (recommended) format (10) Appendix B Calibration Certificate Inner Page (Recommended) Format (13) Appendix C Example of evaluating the measurement uncertainty of frequency shift indication error using standard silicon wafer calibration (16) Appendix D Example of uncertainty evaluation of frequency shift indication error using atomic spectral line lamp calibration (18) Appendix E Example of measurement uncertainty evaluation of frequency shift indication error using standard polystyrene calibration (20) Appendix F Example of uncertainty evaluation of lateral distance error measurement (22) Appendix G Example of uncertainty assessment for longitudinal distance error measurement (25)

Introduction

JJF 1071 "Rules for the Preparation of National Metrology and Calibration Specifications", JJF 1001 "General Metrology Terms and Definitions", JJF 1059.1 "Evaluation and Expression of Uncertainty in Measurement" together constitute the basic series supporting the revision of this specification document. This specification refers to GB/T 40219-2021 "General Specification for Raman Spectrometers" ASTM-E1683-2002 (Reapproved.2007) Standard practice for performance testing of scanning Raman spectrometers Compared with JJF 1544-2015, this specification has the following major technical changes, in addition to editorial revisions. --- Added the introduction; --- Expanded the scope of application of the specification, adding portable Raman spectrometers and handheld Raman spectrometers; --- Added metrological characteristics requirements for portable Raman spectrometers and handheld Raman spectrometers; --- Delete the "relative intensity indication error" calibration item and add the "intensity repeatability" calibration item; --- Added "lateral resolution", "vertical resolution" and "lateral distance error" for microscopic imaging Raman spectrometer "Difference" and "longitudinal distance error" and other calibration items and calibration methods; --- The terminology and measurement standards have been modified according to the modifications to the calibration items and calibration methods; --- Modified the environmental conditions and relaxed the temperature and humidity requirements; --- Delete the recommended recalibration time interval in Chapter 9 "Recalibration time interval"; --- According to the above changes to the calibration items and calibration methods, the original record format in the appendix and the certificate page format The formula and uncertainty evaluation have been revised (see Appendix A, Appendix B, Appendix C, Appendix D, Appendix E, Appendix F and Appendix G). The previous versions of this specification are as follows. ---JJF 1544-2015. Raman spectrometer calibration specifications

1 Scope

This specification applies to laser confocal microscopic imaging Raman spectrometers (referred to as microscopic imaging Raman spectrometers), Calibration of portable Raman spectrometers and handheld Raman spectrometers. Calibration of other types of Raman spectrometers can refer to this specification implement.

2 References

This specification references the following documents. GB/T 40219-2021 General Specification for Raman Spectrometers For any referenced document with a date, only the version with the date is applicable to this specification; for any referenced document without a date, The latest version (including all amendments) shall apply to this specification.

3 Terms and definitions

The terms and definitions defined in GB/T 40219-2021 and the following apply to this specification. 3.1 Raman scattering The interaction between monochromatic incident light and the medium produces scattered light with a frequency different from the original incident light, and the relative frequency shift It is called the phenomenon of distribution on both sides of the incident light frequency. [Source. GB/T 40219-2021, 3.1] 3.2 Raman shift The difference between the absolute wave number of the incident light and the absolute wave number of the scattered light is referred to as "frequency shift" and its unit is cm-1. [Source. GB/T 40219-2021, 3.2, modified] 3.3 Absolute wave number absolutewavenumber The reciprocal of the wavelength, that is, the number of wavelengths contained in one centimeter, the unit is cm-1. 3.4 Relative wave number relativewavenumber The absolute wavenumber of the excitation light minus the absolute wavenumber of the Raman scattered light, in cm-1. 3.5 Peak position The center position of the Raman scattering spectrum peak is often expressed in relative wavenumbers, with the unit being cm-1. The signal intensity of a Raman peak measured by the Raman spectrometer is the signal intensity from the highest point of the peak to the background corresponding to that point. The count difference from the baseline. [Source. GB/T 40219-2021, 3.5] ...