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GB/T 15077-2008: Geometric size measuring methods of precious metals and their alloy materials
Status: Valid GB/T 15077: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 15077-2008 | English | 329 |
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Geometric size measuring methods of precious metals and their alloy materials
| Valid |
GB/T 15077-2008
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| GB/T 15077-1994 | English | 439 |
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Geometric size measuring methods of precious metals and their alloy materials
| Obsolete |
GB/T 15077-1994
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PDF similar to GB/T 15077-2008
Basic data | Standard ID | GB/T 15077-2008 (GB/T15077-2008) | | Description (Translated English) | Geometric size measuring methods of precious metals and their alloy materials | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H68 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 14,184 | | Date of Issue | 2008-03-31 | | Date of Implementation | 2008-09-01 | | Older Standard (superseded by this standard) | GB/T 15077-1994 | | Quoted Standard | GB/T 2828.1; GB/T 8170; GB/T 17684 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.5 (Total No.118) | | 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 determination by direct measurement of precious metals and their alloys plate, bars and composites geometry approach, line, belt, pipe, wire. This method is suitable for the precious metal and its alloy plate, belt, pipe, wire, bars and composites geometry measurement, line. Measuring range: soft metal wire, wire and rod diameter greater than 0. 1 mm, hard metal wire, wire and rod diameters greater than 0. 03 mm, soft metal strip and plate thickness greater than 0. 1 mm, hard metal strip and plate thickness greater than 0. 05 mm, pipe aperture greater than 3. 0 mm. | GB/T 15077-2008: Geometric size measuring methods of precious metals and their alloy materials---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.
Geometric size measuring methods of precious metals and their alloy materials
ICS 77.120.99
H68
National Standards of People's Republic of China
Replacing GB/T 15077-1994
Precious metals and their alloys geometry measurement methods
Posted 2008-03-31
2008-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 15077-1994 "precious metals and their alloys geometry measurement method."
This standard includes three methods.
--- Direct measurement method;
--- Method 2 weighing method;
--- Method 3 projection and metallographic method.
1 is a method in which amendments to the GB/T 15077-1994 chapter one; Method 2 is a revision of the second part; Method 3 is added
section.
This standard compared with the original standards, the main changes are as follows.
--- Increased projection and metallographic method;
--- Normative references supplement;
--- Increase principle of the method;
--- Increase direct measurement method Measuring range. soft metal wire (gold and silver), wire and rod diameter greater than 0.1mm, hard metal
Wire, wire and rod diameter greater than 0.03mm; soft metal strip (gold and silver) and plate thickness greater than 0.1mm, hard
Metal strip and plate thickness greater than 0.05mm; pipe pore size greater than 3.0mm;
--- Original standard gravimetric method measuring range. filament diameter ≥0.008mm; foil thickness ≥0.003mm; pipe and the wall aperture
Respectively ≥0.3mm thick and 0.08mm, amended as follows. soft metal filaments (gold and silver) diameter of not more than 0.1mm, hard gold
Genus filament diameter of not more than 0.03mm; soft metal foil (gold and silver) is not greater than the thickness of 0.1mm, hard metal foil thickness
Not more than 0.05mm; pipe aperture is not more than 3.0mm.
The standard proposed by China Nonferrous Metals Industry Association.
This standard Nonferrous Metals by the National Standardization Technical Committee.
This standard by your research Platinum Ltd. is responsible for drafting.
The main drafters of this standard. Wang Jian, Zhou Shiping, Yunnan Zhuang Xiang, XIA Kun, Jiangchuan Gui, Ningde Kui, Zhu Wuxun.
This standard replaces the standards previously issued as follows.
--- GB/T 15077-1994;
--- GB/T 3491-1983, GB/T 3492-1983, GB/T 3493-1983.
Precious metals and their alloys geometry measurement methods
Direct measurement method
1 Scope
This method specifies the determination by direct measurement of precious metals and their alloys plate, strip, tube, wire, line, bar and composites geometry
method.
This method is suitable for precious metals and their alloys plate, measuring tape, tube, wire, line, bar and composites geometry. Measuring range. soft gold
Genus (gold and silver) wire, wire and rod diameter greater than 0.1mm, hard metal wire, wire and rod diameter greater than 0.03mm; soft gold
Genus (gold and silver) strip and plate thickness greater than 0.1mm, hard metal strip and plate thickness greater than 0.05mm; aperture large pipe
To 3.0mm.
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 2828.1 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch inspection sampling plan
GB/T 8170 numerical rounding rules
GB/T 17684 precious metals and their alloys - Terms
3 Definitions and Terminology
The following terms and definitions GB/T 17684 regulations apply to this standard.
Uniform thickness greater than 0.5mm flat article.
And not less than 0.05mm thickness uniformity of flat rolled products, generally longitudinal cutting edge length greater than 1 meter.
Along the entire length of the cross-section and having a uniform wall thickness, and only one closed hollow through hole processed products, the cross-sectional shape
They are circular, oval or other shapes.
Along the entire length having a uniform solid cross-section of processed products, the cross-sectional shapes are circular and elliptical. diameter
Generally not more than 0.3mm.
Along the entire length having a uniform solid cross-section of processed products, the cross-sectional shapes are circular and elliptical. diameter
Generally 0.3mm ~ 3mm.
Along the entire length of uniform cross-section having a solid processed products, generally not less than a diameter of 3mm, the cross-sectional shape, respectively
Circular, rectangular or regular polygon and the like.
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