JJF 1208-2008_English: PDF (JJF1208-2008)
| Standard ID | USD | BUY PDF | Lead-Days | Standard Title (Description) | Status |
| JJF 1208-2008 | 239 |
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3 days
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Calibration Specification for Apparatus for Determining Penetration of Bituminous Materials
| Valid |
| JJF 1208-1990 | 199 |
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O.T.N.of Angle Divding Table Primary Standard
| Obsolete |
| Standard ID | JJF 1208-2008 (JJF1208-2008) | | Description (Translated English) | Calibration Specification for Apparatus for Determining Penetration of Bituminous Materials | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A52 | | Classification of International Standard | 17.040 | | Word Count Estimation | 10,154 | | Date of Issue | 2008-05-23 | | Date of Implementation | 2008-08-23 | | Quoted Standard | JJF 1001-1998; JJF 1059-1999; JJF 1094-2002; GB/T 4509-1998; JT/T 653-2006; JJG 128-2003 | | Drafting Organization | Chongqing Academy of Metrology and Quality Inspection | | Administrative Organization | National Engineering Measurement Technical Committee of Geometrical parameters | | Regulation (derived from) | AQSIQ Announcement No. 72 of 2008 | | Summary | This standard applies to asphalt penetration instrument calibration. |
JJF 1208-2008
Calibration Specification for Apparatus for Determining Penetration of Bituminous Materials
People's Republic of China National Metrology Technical Specifications
Asphalt penetration instrument calibration specification
Posted 2008-05-23
2008-08-23 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Asphalt penetration instrument calibration specification
This specification by the State Administration of Quality Supervision, Inspection and Quarantine approved on May 23, 2008, and from
From August 23, 2008 into effect.
Focal point. the National Technical Committee of length measuring geometry
Drafted by. Chongqing Institute of Metrology and Quality Inspection
This specification length measuring geometry commissioned the National Technical Committee is responsible for interpretation
The main drafters of this specification.
Jiang Cong (Chongqing Institute of Metrology and Quality Inspection)
Tao Lei (Chongqing Institute of Metrology and Quality Inspection)
Drafters participate.
Liu Yaxiong (Chongqing Institute of Metrology and Quality Inspection)
table of Contents
1 Scope (1)
2. Referenced Documents (1)
3 Overview (1)
4 Metrological characteristics (1)
4.1 Instrument base level Mounting correctness (1)
4.2 standard needle (including needle, the needle rod and weight) of the total mass (1)
4.3 needle body geometry (1)
Conical and cylindrical surface of the body of the needle 4.4 roughness Ra (1)
4.5 Temperature indication error (1)
4.6 length measuring indication error (1)
Calibration Condition 5 (3)
Environmental conditions 5.1 (3)
5.2 standard and calibration items (3)
6 calibration items and calibration methods (3)
6.1 standard installation correctness instrument (3)
6.2 standard needle (including needle, the needle rod and weight) of the total mass (3)
6.3 needle body geometry (3)
6.4 needle conical and cylindrical surface roughness (4)
6.5 Temperature indication error (4)
6.6 length measuring indication error (4)
7 Calibration Results The expression (4)
8 Recalibration interval (4)
The technical requirements of Appendix A metrological characteristics (5)
Asphalt penetration instrument calibration specification
1 Scope
This instruction applies to asphalt penetration instrument calibration.
2 Citations
This specification references the following documents.
JJF 1001-1998 "common measurement terms and definitions"
JJF 1059-1999 "Evaluation and Expression of Uncertainty in Measurement"
JJF 1094-2002 "measuring instrument characteristics assessed"
GB/T 4509-1998 "Determination of asphalt penetration"
JT/T 653-2006 "road asphalt penetration tester"
JJG128-2003 "second-class standard mercury thermometer"
When using this specification it should be noted that using the currently valid version of the documents cited.
3 Overview
Asphalt penetration tester is to measure the physical properties of the asphalt index instruments. It is used in line with the provisions of shape, size and quality
Standard pin, so that the tip surface of bituminous materials tested under specified temperature conditions and in contact with the surrounding support no friction
Under rub state, by self-weight into the asphalt. According to the standard needle within a specified period of time measured bituminous material is pressed into the depth of eligible
Obtained bitumen has a penetration index. 1 Penetration index represents the indentation depth of 0.1mm.
Asphalt penetration tester is divided into manual and automatic.
Form the basic structure --- manual asphalt penetration tester shown in Figure 1, the thermometer in the water bath temperature was
Shown, manual control is pressed into the length of time to read the indentation depth.
--- Automatic form the basic structure of asphalt penetration instrument 2, the inner temperature of the water bath was automatically controlled and FIG.
Shows, pressed into the indentation depth and length of time to automatically collect and display.
4 Metrological characteristics
4.1 Installation of the instrument base level correctness
4.2 standard needle (including needle, the needle rod and weight) of the total mass
4.3 needle body (FIG. 3) of the geometric parameters
4.3.1 needle diameter cylindrical portion D.
4.3.2 taper at the small diameter d; needle cone angle φ.
4.3.3 needle cone and cylinder concentricity a.
Cone small end of the cone with a vertical axis of the needle deviation 4.3.4 b.
The surface roughness Ra 4.4 needle conical and cylindrical
4.5 Temperature indication error
4.6 length measuring indication error
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