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Position: Chinese Standard in English/JJG 178-2007
JJG 178-2007   Ultraviolet,Visible,Near-Infrared Spectrophotometers (English Version)
Standard No.: JJG 178-2007 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 11000 words Price(USD):330.0 remind me the price change

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Implemented on:2008-5-21 Delivery: via email in 1 business day
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Standard No.: JJG 178-2007
English Name: Ultraviolet,Visible,Near-Infrared Spectrophotometers
Chinese Name: 紫外、可见、近红外分光光度计检定规程
Chinese Classification: A61    Chemical Measurement
Professional Classification: JJ    Metering
Issued by: AQSIQ
Issued on: 2007-11-21
Implemented on: 2008-5-21
Status: valid
Superseding:JJG 375-1996 UItraviolet Visible Range Spectrophotometer in Single Beam
JJG 689-1990 UV-VIS-NIR Spectrophotometer
Language: English
File Format: PDF
Word Count: 11000 words
Price(USD): 330.0
Delivery: via email in 1 business day
Verification Regulation of Ultraviolet, Visible, Near-Infrared Spectrophotometers 1 Scope This regulation is applicable to the first verification, subsequent verification and in-service inspection of visible, ultraviolet-visible and ultraviolet-visible-near infrared spectrophotometers with continuously adjustable wavelength ranging from 190 nm ~ 2600 nm. 2 Normative references The following documents are referenced in this regulation: OIML R135 International recommendation OIML R135 Edition 2004 Spectrophotometers for medical laboratories JJF 1001-1998 General Terms in Metrology and Their Definitions JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement While applying this regulation, attention shall be paid to make sure that the referenced ones are currently effective editions of the above documents. 3 General Ultraviolet-visible-near infrared spectrophotometer (hereinafter referred to as the instrument) is an instrument for quantitative analysis and qualitative identification of substances according to the selective absorption of ultraviolet, visible and near infrared radiation (light) by molecules of substances and Lambert-Beer’s law. The mathematical expression of Lambert-Beer's law is: A = -lg(I/Io) = -lg T = klc where, A — the absorbance of substance; Io — the intensity of incident monochromatic light; I — the intensity of transmitted monochromatic light; T — the transmittance of substance; k — the absorption coefficient of substance; l — the optical path of the substance to be analyzed;
1 Scope 2 Normative references 3 General 4 Measurement performance requirements 4.1 Maximum permissible error of wavelength 4.2 Wavelength repeatability 4.3 Noise and drift 4.4 Minimum spectral bandwidth 4.5 Maximum permissible error of transmittance 4.6 Transmittance repeatability 4.7 Baseline straightness 4.8 Power supply voltage adaptability 4.9 Stray light 4.10 Matching of the absorption cell 5 General technical requirements 5.1 Safety performance 5.2 Marking 5.3 Appearance 5.4 Absorption cell 6 Control of metrological instruments 6.1 Verification conditions 6.2 Verification items 6.3 Verification method 6.4 Treatment of verification results 6.5 Verification period Annex A Reference wavelength of wavelength reference materials Annex B Transmittance of potassium dichromate standard solutions at the corresponding wavelengths with different temperatures and spectral bandwidths Annex C Preparation method of standard solution Annex D Inside page format of verification certificate Annex E Recording format of ultraviolet, visible, near-infrared spectrophotometers verification
Referred in JJG 178-2007:
*JJF 1001-1998
*JJF 1059-1999 Evaluation and Expression of Uncertaintv in Measurement
Code of China
Standard
JJG 178-2007  Ultraviolet,Visible,Near-Infrared Spectrophotometers (English Version)
Standard No.JJG 178-2007
Statusvalid
LanguageEnglish
File FormatPDF
Word Count11000 words
Price(USD)330.0
Implemented on2008-5-21
Deliveryvia email in 1 business day
Detail of JJG 178-2007
Standard No.
JJG 178-2007
English Name
Ultraviolet,Visible,Near-Infrared Spectrophotometers
Chinese Name
紫外、可见、近红外分光光度计检定规程
Chinese Classification
A61
Professional Classification
JJ
ICS Classification
Issued by
AQSIQ
Issued on
2007-11-21
Implemented on
2008-5-21
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
JJG 375-1996 UItraviolet Visible Range Spectrophotometer in Single Beam
JJG 689-1990 UV-VIS-NIR Spectrophotometer
Language
English
File Format
PDF
Word Count
11000 words
Price(USD)
330.0
Keywords
JJG 178-2007, JJG/T 178-2007, JJGT 178-2007, JJG178-2007, JJG 178, JJG178, JJG/T178-2007, JJG/T 178, JJG/T178, JJGT178-2007, JJGT 178, JJGT178
Introduction of JJG 178-2007
Verification Regulation of Ultraviolet, Visible, Near-Infrared Spectrophotometers 1 Scope This regulation is applicable to the first verification, subsequent verification and in-service inspection of visible, ultraviolet-visible and ultraviolet-visible-near infrared spectrophotometers with continuously adjustable wavelength ranging from 190 nm ~ 2600 nm. 2 Normative references The following documents are referenced in this regulation: OIML R135 International recommendation OIML R135 Edition 2004 Spectrophotometers for medical laboratories JJF 1001-1998 General Terms in Metrology and Their Definitions JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement While applying this regulation, attention shall be paid to make sure that the referenced ones are currently effective editions of the above documents. 3 General Ultraviolet-visible-near infrared spectrophotometer (hereinafter referred to as the instrument) is an instrument for quantitative analysis and qualitative identification of substances according to the selective absorption of ultraviolet, visible and near infrared radiation (light) by molecules of substances and Lambert-Beer’s law. The mathematical expression of Lambert-Beer's law is: A = -lg(I/Io) = -lg T = klc where, A — the absorbance of substance; Io — the intensity of incident monochromatic light; I — the intensity of transmitted monochromatic light; T — the transmittance of substance; k — the absorption coefficient of substance; l — the optical path of the substance to be analyzed;
Contents of JJG 178-2007
1 Scope 2 Normative references 3 General 4 Measurement performance requirements 4.1 Maximum permissible error of wavelength 4.2 Wavelength repeatability 4.3 Noise and drift 4.4 Minimum spectral bandwidth 4.5 Maximum permissible error of transmittance 4.6 Transmittance repeatability 4.7 Baseline straightness 4.8 Power supply voltage adaptability 4.9 Stray light 4.10 Matching of the absorption cell 5 General technical requirements 5.1 Safety performance 5.2 Marking 5.3 Appearance 5.4 Absorption cell 6 Control of metrological instruments 6.1 Verification conditions 6.2 Verification items 6.3 Verification method 6.4 Treatment of verification results 6.5 Verification period Annex A Reference wavelength of wavelength reference materials Annex B Transmittance of potassium dichromate standard solutions at the corresponding wavelengths with different temperatures and spectral bandwidths Annex C Preparation method of standard solution Annex D Inside page format of verification certificate Annex E Recording format of ultraviolet, visible, near-infrared spectrophotometers verification
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