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JJF 1384-2012: Calibration Specification for Open/Closed Cup Flash Point Testers
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJF 1384-2012 | English | 399 |
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Calibration Specification for Open/Closed Cup Flash Point Testers
| Valid |
JJF 1384-2012
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Standard similar to JJF 1384-2012 JJF 1033 JJF 1050 JJF 1030 Basic data | Standard ID | JJF 1384-2012 (JJF1384-2012) | | Description (Translated English) | Calibration Specification for Open/Closed Cup Flash Point Testers | | Sector / Industry | Metrology & Measurement Industry Standard | | Word Count Estimation | 17,163 | | Quoted Standard | GB/T 261-2008; GB/T 3536-2008 | | Regulation (derived from) | AQSIQ Announcement No. 212 of 2012 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to Cleveland Open Cup Flash Point Tester and Pensky Martens closed cup flash point tester (only applies to GB/T 261-2008 in the "Step A") (hereinafter referred to as flash meter) of calibration. | JJF 1384-2012: Calibration Specification for Open/Closed Cup Flash Point 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.
Calibration Specification for Open/Closed Cup Flash Point Testers
People's Republic of China National Metrology Technical Specifications
Open/closed flash point analyzer calibration specification
Issued on. 2012-12-21
2013-03-21 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Open/closed flash point tester
Calibration Specification
Focal point. the National Technical Committee stoichiometric physical
The main drafting units. China Institute of Metrology
Liaoning Provincial Institute of Metrology
Participated in the drafting unit. Hebei Supervision and Testing hospital
Instrument Co., Ltd. Shandong Hui
This specification stoichiometric commissioned National Technical Committee is responsible for the physical interpretation
The main drafters of this specification.
Zhang Zhengdong (China Institute of Metrology)
Lvzhong Lan (China Institute of Metrology)
Aiming Ze (Liaoning Provincial Institute of Metrology)
Drafters participate.
Liu Hongyan (Hebei Supervision and Testing Institute)
Bi Haicheng (Shandong Hui Instruments Co., Ltd.)
table of Contents
Introduction (Ⅱ)
1 Scope (1)
2. References (1)
3 Overview (1)
4 Metrological characteristics (1)
Calibration Condition 5 (2)
5.1 environmental conditions (2)
5.2 standards and other measuring equipment (2)
6 calibration items and calibration methods (2)
6.1 appearance inspection (2)
6.2 Calibration preparation (2)
6.3 Repeatability (3)
6.4 Indication Error (4)
7 Calibration result expression (5)
8 Recalibration interval (5)
Appendix A calibration record format (6)
Appendix B certified flashpoint standard list substances (7)
Appendix C calibration certificate page format (8)
Appendix D shows the calibration error of Uncertainty Evaluation Example (9)
Introduction
In the present specification JJF 1071 "national measurement calibration specifications preparation of specifications", JJF 1001 "universal metering and fixed term
Justice ", JJF 1059" Evaluation and Expression of Uncertainty in Measurement "as the basis of specifications developed series.
This specification according to the national standard GB/T 3536-2008 "Determination of flash and fire points of petroleum products Cleveland
Open Cup "and GB/T 261-2008" Flash Point by Pensky - Martens closed cup method "compiled. They are suitable
For GB/T 3536-2008 in the "Flash Test Procedure" and GB/T 261-2008 in the "Step A".
This specification is the first release.
Open/closed flash point analyzer calibration specification
1 Scope
This instruction applies to Cleveland open cup flash point tester and Pensky - Martens closed cup flash point tester
(Only for GB/T 261-2008 in the "Step A") (hereinafter referred to as the flash point meter) calibration.
2. References
GB/T 261-2008 for Flash Point by Pensky - Martens closed cup method
GB/T 3536-2008 Petroleum products - Determination of flash point and ignition point Cleveland open cup method
For dated references, only the dated edition applies to this specification; undated reference documents
Member, the latest edition (including any amendments) applies to this specification.
3 Overview
Depending on the test conditions, the flash point generally includes an opening closed flash point flash point and two types. Cleveland open flash
Point is the most commonly used open flash point, Pensky - Martens closed flash point is the most widely used closed flash point.
Cleveland Open Cup Flash Point Tester is examined in an open environment the degree of flammable liquids for opening
Flash point above 79 ℃, in addition to fuel oil petroleum products. Its working principle is to sample cup is filled with oil to Regulation
Set the mark, the first rapid increase at a constant speed sample temperature, when a sample is expected to be close to the flash point, the heating rate is lowered
To slow uniform heating. Before reaching a flash point temperature is expected to start at a predetermined temperature interval, with a small test
Fire swept mortem test cup, the test flame causes the lowest temperature of the sample vapor above the liquid sample as a flash fire when opening
Flash point.
Pensky - Martens closed cup flash point tester is examined in a closed environment flammable liquid level for closing
Opening a flash point above 40 ℃ distillates, unused lubricating oils and other liquids. Works is to load a sample test
Cup experience to a predetermined groove, continuously stirred while slowly heating the sample uniform, is expected to reach a flash point temperature before the start,
At a predetermined temperature interval, in case of interruption of stirring, the introduction of a small flame cup test flame causes the sample
The lowest temperature on vapor liquid flash fire when closed flash point as a sample.
Open/closed flash point tester consists of a heating device, temperature measurement equipment, ignition systems and other components test cup, closed
Flash Point Tester mouth a little more than attempting entrance test lid and a stirring device. In addition, the drive comes with automatic flash point tester
Sequence heating system and flash fire detection system.
4 Metrological characteristics
Technical indicators Repeatability and error indication in Table 1.
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