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GB/T 25940-2010: IRHD dead-load testers
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25940-2010 | English | 189 |
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IRHD dead-load testers
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GB/T 25940-2010
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Basic data | Standard ID | GB/T 25940-2010 (GB/T25940-2010) | | Description (Translated English) | IRHD dead-load testers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G98 | | Classification of International Standard | 71.120; 83.200 | | Word Count Estimation | 8,841 | | Date of Issue | 2010-12-23 | | Date of Implementation | 2011-07-01 | | Quoted Standard | GB/T 191; GB/T 6388; GB/T 9969; GB/T 13306; GB/T 13384 | | Regulation (derived from) | National Standard Approval Announcement 2010 No.10 (Total No.165) | | 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 constant load international rubber hardness (hereinafter referred to as hardness) structure and size, requirements, tests, inspection rules, product logo, packaging, transport, storage and so on. This standard applies to the determination of the hardness of vulcanized rubber and rubber-like materials internationally, constant load test range 10IRHD ~ 100IRHD international rubber hardness. | GB/T 25940-2010: IRHD dead-load testers---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.
IRHD dead-load testers
ICS 71.120; 83.200
G98
National Standards of People's Republic of China
International fixed load hardness of rubber
Issued on. 2010-12-23
2011-07-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Rubber & Plastics Machinery Standardization Technical Committee (SAC/TC71) centralized.
This standard was drafted. Beijing Friends of Shenzhen Electronic Instrument Co., Ltd., Beijing Rubber Industry Research and Design Institute.
Drafters of this standard. Zhu Qinghua, Ho Cheng, Xia Xiangxiu, Yi Yongan, Wei red.
International fixed load hardness of rubber
1 Scope
This standard specifies the rated load international rubber hardness (hereinafter referred to as hardness) structure and size, requirements, testing, inspection rules, product standard
Chi, packaging, transportation, storage and so on.
This standard applies to the determination of hardness of vulcanized rubber and rubber-like material international test range 10IRHD ~ 100IRHD fixed negative
Dutch international rubber hardness.
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 191 Packaging - Pictorial signs (GB/T 191-2008, ISO 780.1997, MOD)
GB/T 6388 transport package shipping mark
GB/T 9969 General Instructions industrial products
GB/T 13306 signs
GB/T 13384 mechanical and electrical products packaging General technical conditions
3 Structure and Size
3.1 hardness by the strut and strut supporting device, the contact force of the plunger and the pressing force is applied to the apparatus, measured by the plunger pressing force generated
Indentation depth increment annular pressure means and flat feet and other components.
3.2 bar and the pressure foot is shown in Figure 1, hardness and size of the force should be in accordance with Table 1.
φD --- pressure foot outer diameter;
φd1 --- hole diameter;
φSd2 --- ball diameter;
l --- indentation depth.
1 a schematic diagram of the pressure lever and foot
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