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JJF 1889-2020 English PDF

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US$419.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1889-2020: Calibration Specification for Medical Hard Copy Cameras
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1889-2020	419	Add to Cart	4 days	Calibration Specification for Medical Hard Copy Cameras	Valid

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Basic data

Standard ID: JJF 1889-2020 (JJF1889-2020)
Description (Translated English): Calibration Specification for Medical Hard Copy Cameras
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A60
Classification of International Standard: 17.180
Word Count Estimation: 18,153
Date of Issue: 2020-11-26
Date of Implementation: 2021-05-26
Quoted Standard: JJF 1032-2005; GB/T 17006.3-2000; GB/T 17006.6-2003; GB/T 34988-2017; HG/T 4127-2017; YY/T 0610-2007; IEC 61223-2-4-1994; IEC TR 60788-2004; SMPTE RP-133-1991
Regulation (derived from): Announcement No. 57 (2020) of the State Administration for Market Regulation
Issuing agency(ies): State Administration for Market Regulation
Summary: This standard applies to the calibration of medical hardcopy cameras (also called "medical film printers"), including dry laser cameras and thermal film printers.

JJF 1889-2020: Calibration Specification for Medical Hard Copy Cameras

---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 Medical Hard Copy Cameras National Metrology Technical Specifications of the People's Republic of China Calibration specification for medical hardcopy cameras 2020-11-26 release 2021-05-26 implementation Issued by the State Administration for Market Regulation Medical hard copy camera Calibration specification Focal point: National Medical Metrology Technical Committee Main drafting unit: China Institute of Metrology Shandong Institute of Metrology Participated in the drafting unit: Hebei Provincial People's Hospital Carestream (Shanghai) Medical Equipment Co:, Ltd: Agfa Medical System Equipment (Shanghai) Co:, Ltd: This specification entrusts the National Medical Metrology Technical Committee to interpret The main drafters of this specification: Zhang Pu (China Institute of Metrology) Li Chengwei (China Institute of Metrology) Ding Qiang (Shandong Institute of Metrology) Participating drafters: Baoyunfeng (Hebei Provincial People's Hospital) Liu Zilong (China Institute of Metrology) Li Guodong [Reco (Shanghai) Medical Equipment Co:, Ltd:] Chen Bin [Agfa Medical System Equipment (Shanghai) Co:, Ltd:]

Introduction (Ⅱ) 1 scope (1) 2 Reference documents (1) 3 Terms and measurement units (1) 3:1 Medical dry film (1) 3:2 Hardcopy camera (1) 3:3 Grayscale(1) 3:4 Film density (2) 3:5 Grayscale reproducibility (2) 3:6 Basic film (2) 3:7 Test film (2) 3:8 Image distortion (2) 3:9 Film viewer (2) 4 Overview (2) 5 Measurement characteristics (2) 5:1 Grayscale reproducibility (2) 5:2 Image distortion (2) 6 Calibration conditions (2) 6:1 Environmental conditions (2) 6:2 Measurement standards and other equipment (3) 7 Calibration items and calibration methods (3) 7:1 Appearance and functional inspection (3) 7:2 Grayscale reproducibility (3) 7:3 Image distortion (3) 8 Calibration result expression (5) 8:1 Calibration record (5) 8:2 Processing of calibration results (5) 9 Recalibration interval (6) Appendix A Format of Original Record (Recommended) for Calibration of Medical Hardcopy Cameras (7) Appendix B Internal page of calibration certificate (recommended) format (8) Appendix C Example of Uncertainty Evaluation of Gray Scale Reproducibility Calibration (10) Appendix D Example of Uncertainty Evaluation of Image Distortion Calibration (12)

Introduction

JJF 1071-2010 "Rules for the Compilation of National Metrology and Calibration Specifications", JJF 1001-2011 "General Metrology Terms and Definition" and JJF 1059:1-2012 "Evaluation and Expression of Measurement Uncertainty" together constitute the support for the formulation of this specification The basic series of documents: This specification is released for the first time: Calibration specification for medical hardcopy cameras

1 Scope

This specification applies to the calibration of medical hard copy cameras (also called "medical film printers"), including dry lasers Optical camera and thermal film printer:

2 Reference documents

This specification refers to the following documents: JJF 1032-2005 Terms and Definitions of Optical Radiation Metrology GB/T 17006:3-2000 Evaluation and routine tests in medical imaging departments Part 2-2: X-ray photography Shadow cassette and film changer screen-film contact and screen-cassette assembly relative sensitivity stability test GB/T 17006:6-2003 Evaluation and Routine Tests in Medical Imaging Department Part 2-4: Hard Copy Photos Camera stability test GB/T 34988-2017 Information Technology General Specification for Toner Cartridges for Monochrome Laser Printers HG/T 4127-2017 medical dry film YY/T 0610-2007 General technical conditions for medical imaging photo observation equipment IEC 61223-2-4::1994 Evaluation and routine testing in medical imaging departments Part 2-4: Hard copy photography Machine stability test (Evaluationandroutinetestinginmedicalimagingdepartments-Part 2-4: Constancytests-Hardcopycameras) IEC TR60788:2004 Medical electrical equipment definition term glossary (Medicalelectrical equipment-Glossaryofdefinedterms) SMPTERP-133:1991 TV monitor and screenshot recording camera medical diagnostic imaging test mode specification Fan (Specificationsformedicaldiagnosticimagingtestpatternfortelevisionmonitors) For dated reference documents, only the dated version applies to this specification; for undated references The latest version (including all amendments) is applicable to this specification:

3 Terms and units of measurement

3:1 Medical dryfilm medicaldryfilm Contains medical dry laser film (consisting of polyester film coated with silver salt and protective layer) and medical dry thermal film (Composed of a polyester film base, a silver-containing heat-sensitive layer and a protective layer), it can be used as a diagnostic basis without the use of a developer: Medical imaging (CT, MRI, CR, DR, etc:) records: Note: "Medical dry film" is referred to as "film" in this specification: 3:2 Hardcopy camera hardcopycamera A device that uses the input signal provided by the imaging system to produce an indelible image on the film: 3:3 grayscale The visibility of brightness differences between adjacent grayscale blocks: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1889-2020_English be delivered?

Answer: Upon your order, we will start to translate JJF 1889-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1889-2020_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1889-2020_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.