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SJ 20637-2021 English PDF

US$359.00 ยท In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
SJ 20637-2021: (Specification for aluminum nitride powder for military electronic ceramics)
Status: Valid

SJ 20637: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
SJ 20637-2021English359 Add to Cart 4 days [Need to translate] (Specification for aluminum nitride powder for military electronic ceramics) Valid SJ 20637-2021
SJ 20637-1997English399 Add to Cart 3 days [Need to translate] Specification for AIN powder for electric ceramics Obsolete SJ 20637-1997

PDF similar to SJ 20637-2021


Standard similar to SJ 20637-2021

SJ/T 11795   GB/T 11446.8   GB/T 11446.9   SJ/T 11801   SJ 20641A   SJ 20640A   

Basic data

Standard ID SJ 20637-2021 (SJ20637-2021)
Description (Translated English) (Specification for aluminum nitride powder for military electronic ceramics)
Sector / Industry Electronics Industry Standard
Classification of Chinese Standard L90
Classification of International Standard 31.030
Word Count Estimation 16,119
Date of Issue 2021-12-27
Date of Implementation 2022-03-01
Issuing agency(ies) Ministry of Industry and Information Technology

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Question 5: Should I purchase the latest version SJ 20637-2021?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version SJ 20637-2021 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.