JB/T 3870.1-2019 English PDF

US$279.00 · In stock
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JB/T 3870.1-2019: Calipers grinding machines -- Part 1: Testing of the accuracy
Status: Valid

JB/T 3870.1: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JB/T 3870.1-2019	279	Add to Cart	3 days	Calipers grinding machines -- Part 1: Testing of the accuracy	Valid
JB/T 3870.1-1999	319	Add to Cart	3 days	Calipers grinding machine Accuracy inspection	Obsolete
JB 3870-1985	359	Add to Cart	3 days	(Precision calipers grinder)	Obsolete

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GB/T 38193   JB/T 12396   JB/T 8490   JB/T 7418.1   JB/T 6197.1   JB/T 3875.2   

Basic data

Standard ID: JB/T 3870.1-2019 (JB/T3870.1-2019)
Description (Translated English): Calipers grinding machines -- Part 1: Testing of the accuracy
Sector / Industry: Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard: J55
Classification of International Standard: 025.080.50
Word Count Estimation: 12,140
Date of Issue: 2019-05-02
Date of Implementation: 2020-01-01
Older Standard (superseded by this standard): JB/T 3870.1-1999
Quoted Standard: GB/T 17421.1-1998
Regulation (derived from): Natural Resources Department Announcement No. 7 of 2019
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the geometric accuracy and working accuracy requirements, inspection methods and corresponding tolerances of caliper grinders. This section applies to caliper grinders (hereinafter referred to as machine tools) of ordinary precision and precision grades with a maximum grinding caliper size of 250mm��800mm.

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