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GB/T 4048-2008: Timekeeping instruments -- Wristwatches -- Dimensions of bracelet-to-case fastening elements
Status: Valid GB/T 4048: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4048-2008 | English | 154 |
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Timekeeping instruments -- Wristwatches -- Dimensions of bracelet-to-case fastening elements
| Valid |
GB/T 4048-2008
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| GB/T 4048-1983 | English | 199 |
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Wristwatch cases--Dimensions of fastening elements for bracelets
| Obsolete |
GB/T 4048-1983
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PDF similar to GB/T 4048-2008
Basic data | Standard ID | GB/T 4048-2008 (GB/T4048-2008) | | Description (Translated English) | Timekeeping instruments -- Wristwatches -- Dimensions of bracelet-to-case fastening elements | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y11 | | Classification of International Standard | 39.040.10 | | Word Count Estimation | 8,874 | | Date of Issue | 2008-07-31 | | Date of Implementation | 2009-05-01 | | Older Standard (superseded by this standard) | GB/T 4048-1983 | | Quoted Standard | GB/T 14256; ISO 286-1 | | Adopted Standard | ISO 3765-1998, IDT | | Regulation (derived from) | National Standard Approval Announcement 2008 No.12 (Total No.125) | | 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 strap bolt with a spring connected to the size of the strap on the case. This standard applies to two types of case and three types of spring strap bolt. | GB/T 4048-2008: Timekeeping instruments -- Wristwatches -- Dimensions of bracelet-to-case fastening elements
---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.
Timekeeping instruments. Wristwatches. Dimensions of bracelet-to-case fastening elements
ICS 39.040.10
Y11
National Standards of People's Republic of China
GB/T 4048-2008/ISO 3765.1998
Replacing GB/T 4048-1983
Timing equipment
Wristwatches strap joints - Dimensions
(ISO 3765.1998, IDT)
Posted 2008-07-31
2009-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is identical with ISO 3765.1998 "chronographs watch strap connecting portion size series" (in English).
For ease of use, this standard made the following editorial changes.
--- "This International Standard" be replaced by "this standard";
"." --- With a decimal point instead of a comma as the decimal point, "";
--- Delete ISO 3765.1998 Foreword;
--- For the ISO 3765.1998 and other international standards have been cited as identical with our standard, our present standard reference
These national standards corresponding to international standards in place, the rest is not tantamount to the adoption of a standard for the international standards in this standard are
It is a direct reference (Chapter 2 of this edition).
This standard replaces GB/T 4048-1983 "watch case and strap joints the size of the family."
This standard compared with GB/T 4048-1983, the main changes are as follows.
--- Increased Chapter 2, "Normative references" to increase the ISO 286-1 "ISO system of limits and fits - Part 1. Tolerances,
Basic deviations and fits "and GB/T 14256" Timing academic language - Part 2. technical and commercial definition of "two references
file;
--- Increased Chapter 3, "Terms and Definitions";
--- Increase the Chapter 4, "category", opponents and increase case reclassified three types of spring strap bolt free content;
--- Diagram of various types of wristwatch case according to Chapter 5 of the ISO 3765.1998 for the corresponding change in the schematic, while increasing three types
Schematic-type spring strap bolt;
--- Chapter 6 Table 1 increased watch case and content, "pore depth" and "effective depth of the hole"; Supplementary shell angular spacing dimension series; increased
Angle conversion formula shell hole diameter and shaft diameter;
--- Chapter 6 increased Table 2, states that the "spring strap bolt" relevant dimensions series.
The standard proposed by China National Light Industry Council.
This standard by the National Standardization Technical Committee of the watch.
This standard was drafted. Shenzhen FIYTA Sophisticated Manufacture Co., Ltd., Institute of Light Industry watch, Zhangzhou City, Fujian Heng Li electronics
Limited.
The main drafters of this standard. Chen Jie, Kim Young-sook, Shaoyue Ming, Tang Hai Yuan, Wuling Jian, Zhao Weihai.
This standard replaces the standards previously issued as follows.
--- GB/T 4048-1983.
GB/T 4048-2008/ISO 3765.1998
Timing equipment
Wristwatches strap joints - Dimensions
1 Scope
This standard specifies the spring strap bolt connecting the strap to the size on the case.
This standard applies to two types of case and the three types of spring strap bolt.
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 14256 Timing academic language - Part 2. Technical and commercial definitions (GB/T 9820.2-2008, ISO 6426-2.
2002, IDT)
ISO 286-1 ISO system of limits and fits - Part 1. Tolerances, deviations and fits basis
3 Terms and Definitions
GB/T 14256 and established in the following terms and definitions apply to this standard.
3.1
Watch movement for the installation of protective shell.
3.2
En strap strap bolt hole by the spring portion of the case.
3.3
Case and strap are connected to the spring member.
Category 4
4.1 wristwatch case
Wristwatch case divided into two types.
--- Ⅰ type. two on each side of the case shell angle, the spring strap strap bolt connection between the two shells angle (Figures 1 and 2);
--- Ⅱ type. Ⅰ type similar to the case, but the two share a shell corner door, the spring strap strap bolt connection between the two shells angle
(Figure 3).
4.2 spring strap bolt
This standard applies to three types of spring strap bolt.
--- Ⅰ type. Double movable pin spring strap bolt (Fig. 4);
--- Ⅱ type. Single-head movable pin spring strap bolt (Fig. 5);
--- Ⅲ type. curved spring strap bolt (Fig. 6).
GB/T 4048-2008/ISO 3765.1998
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