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GB/T 24760-2009: Cast iron straight edges
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 24760-2009 | English | 229 |
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Cast iron straight edges
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GB/T 24760-2009
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Basic data | Standard ID | GB/T 24760-2009 (GB/T24760-2009) | | Description (Translated English) | Cast iron straight edges | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J42 | | Classification of International Standard | 17.040.30 | | Word Count Estimation | 10,121 | | Date of Issue | 2009-12-15 | | Date of Implementation | 2010-09-01 | | Quoted Standard | GB/T 17163; GB/T 17164 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.15 (Total No.155) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the terms and definitions of cast iron square feet, Types and basic parameters, requirements, test methods, such as logo and packaging. | GB/T 24760-2009: Cast iron straight edges---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Cast iron straight edges
ICS 17.040.30
J42
National Standards of People's Republic of China
Cast iron flat feet
Posted 2009-12-15
2010-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Appendix A of this standard is an informative annex.
The standard proposed by China Machinery Industry Federation.
The standard measuring instrument by the National Standardization Technical Committee (SAC/TC132) centralized.
This standard is drafted by. China Institute of Metrology.
Participated in the drafting of this standard. Botou City Taishan precision measuring instrument plant, Henan Institute of Metrology, Hebei Institute of Metrology.
The main drafters of this standard. Zhao Jun, Liu Wei, Zhang Bo, Huang Yuzhu, Wang Shaoping, Chien, Ming.
Cast iron flat feet
1 Scope
This standard specifies the terms and definitions of cast iron flat feet, Types and basic parameters, requirements, and other test methods, marking and packaging.
This standard applies to the specification of 400mm ~ 6300mm, accuracy rating of 00,0,1 and two cast iron square feet (hereinafter referred to as
"Flat feet").
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 17163 dimensional measuring instruments - Basic terminology
GB/T 17164 dimensional measuring instruments - Product terms
3 Terms and Definitions
GB/T 17163, the terms and definitions GB/T 17164 in established apply to this standard.
4 Types and basic parameters
Supporting standard 4.1-foot level of the type shown in Figure 1, shown below in Figure E = 2/9 × 2 L is the best support distance, thereby determining the flat feet when being tested
Bearing position. Illustration illustration purposes only and does not indicate a detailed structure.
Figure 1 Ⅰ shape, Ⅱ type of shaped flat feet schematic
Figure 2 bridge type flat feet
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