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JB/T 50189-1999 English PDF

US$559.00 ยท In stock
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JB/T 50189-1999: Twist drills Service life test method (only for internal use)
Status: Obsolete
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JB/T 50189-1999English559 Add to Cart 4 days [Need to translate] Twist drills Service life test method (only for internal use) Obsolete JB/T 50189-1999

PDF similar to JB/T 50189-1999


Standard similar to JB/T 50189-1999

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Basic data

Standard ID JB/T 50189-1999 (JB/T50189-1999)
Description (Translated English) Twist drills Service life test method (only for internal use)
Sector / Industry Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard J41
Word Count Estimation 14,189
Date of Issue 1999-06-09
Date of Implementation 2000-01-01
Older Standard (superseded by this standard) JB/Z 256-1985
Regulation (derived from) Ministry of Industry and Information Bulletin 2013 No. 23; industry standard for filing Notice 2013 No. 6 (No. 162 overall)
Summary This standard specifies: Standard straight shank, taper shank HSS twist drill when the quality of life of comparative tests and acceptance Referral Program. This standard applies to: laboratory and actual production. To ensure the test results consistency and comparability, the standard test twist, test blanks, cutting fluids and other test conditions to ensure consistency all the factors and test data processing methods have been unified regulations.

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