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www.ChineseStandard.net Database: 189760 (18 Oct 2025)

JJG 68-1991 English PDF

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JJG 68-1991: Verification Regulation of Working Disappearing. Filament of Optical Pyrometer

JJG 68: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 68-1991English959 Add to Cart 5 days [Need to translate] Verification Regulation of Working Disappearing. Filament of Optical Pyrometer   JJG 68-1991
JJG 68-1976EnglishRFQ ASK 3 days [Need to translate] (Chinese Industry Standard) Obsolete JJG 68-1976

PDF similar to JJG 68-1991


Standard similar to JJG 68-1991

JJG 178   JJG 245   JJG 810   JJF 058   JJF 059   JJF 068   

Basic data

Standard ID JJG 68-1991 (JJG68-1991)
Description (Translated English) Verification Regulation of Working Disappearing. Filament of Optical Pyrometer
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A60
Word Count Estimation 30,385
Date of Issue 6/13/1905
Date of Implementation 11/1/1991
Older Standard (superseded by this standard) JJG 68-1976
Summary This standard applies to newly manufactured, used to work in the range of 800 ~ 3200 �� measured brightness temperature after use and repair implicit wire optical pyrometer (referred to as optical pyrometer) indexing and verification, also apply to work with electronic and optical pyrometer constant brightness optical pyrometer test.

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Question 5: Should I purchase the latest version JJG 68-1991?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 68-1991 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.