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Viscosity Measuring Instruments
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Verification Scheme of Viscosity Measuring Instruments
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Basic data
| Standard ID | JJG 2016-2015 (JJG2016-2015) |
| Description (Translated English) | Viscosity Measuring Instruments |
| Sector / Industry | Metrology & Measurement Industry Standard |
| Classification of Chinese Standard | A53 |
| Classification of International Standard | 17.020 |
| Word Count Estimation | 8,827 |
| Date of Issue | 2015-06-15 |
| Date of Implementation | 2015-12-15 |
| Older Standard (superseded by this standard) | JJG 2016-1987 |
| Regulation (derived from) | AQSIQ Announcement 2015 No.72 |
| Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine |
| Summary | This Standard applies to the money transfer viscosity measuring instruments, provides the baseline measurement, with the national level, two standard viscosity material, after the viscosity measurement standard unit measure accurately and reliably transmitted to the measuring instruments work methods and procedures. |
JJG 2016-2015: Viscosity Measuring Instruments
---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.
(Viscosity measuring instruments Verification System)
People's Republic of China National Metrological Verification System tables
Viscosity measuring instruments
Issued on. 2015-06-15
2015-12-15 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Viscosity measuring instruments Verification System
Replacing JJG 2016-1987
Focal point. the National Technical Committee stoichiometric physical
Drafting units. China Institute of Metrology
The Verification System commissioned the National Technical Committee of the stoichiometric physics responsible for the interpretation
The Verification System drafters.
Zhang Zhengdong (China Institute of Metrology)
Drafters participate.
Lvzhong Lan
table of Contents
Introduction (Ⅱ)
1 Scope (1)
2 Viscosity measurement reference (1)
3 Viscosity measurement standards (1)
3.1 a Standard Viscosity material (1)
3.2 standard capillary viscometer (2)
3.3 Secondary Viscosity Standards (2)
4 viscosity measuring instruments work (2)
4.1 viscosity measuring instruments work and the type of value transfer mode (2)
4.2 Working capillary viscometer (2)
4.3 rotational viscometer (2)
4.4 flow cup viscometer (2)
4.5 Scroll falling ball viscometer (2)
5 viscosity measuring instruments Verification System block diagram (3)
Introduction
The verification system in accordance with JJF1104-2003 "National Metrological Verification System write rules" to write, and
JJG 2016-1987 compared to, in addition to editorial changes outside the main technical changes are as follows.
--- Increased contents Introduction;
--- Reference measurement capabilities expanded from 1 × 105mm2 · s-1 to 1 × 106mm2 · s-1;
--- Verification system in accordance with the magnitude of the uncertainty of the corresponding levels JJF1059.1-2012 "Measurement Uncertainty
And means "to be assessed.
The previous versions of the system tables published case.
--- JJG 2016-1987
Viscosity measuring instruments Verification System
1 Scope
The verification system applicable to value transfer viscosity measuring instruments, provides the baseline measurement, by means of a national
Grade secondary reference material viscosity, viscosity unit after measurement standard will measure accurately and reliably transmitted to the measuring instruments work
Methods and procedures.
2 Viscosity measurement reference
2.1 viscosity national benchmarks for reproduction and preservation of liquid kinematic viscosity units, national unity is the highest viscosity values
in accordance with.
2.2 viscosity national benchmarks by the glass capillary viscometer, precision thermostat bath temperature and timing and precision equipment. its
, The capillary viscometer inner diameter in the range of (0.35 ~ 6.9) mm, a total of nine different diameter, the inner diameter of each of the three, the whole
Sets 27.
2.3 viscosity national benchmarks reproduce Newtonian liquid Kinematic viscosity in the range of (1 ~ 1 × 106) mm2 · s-1, not relative expanded
Determining a degree (0.10 ~ 0.50)% (k = 2).
2.4 viscosity national benchmarks to fresh double distilled water viscosity at 20 ℃, 101325Pa pressure as the highest standard
(Kinematic viscosity is internationally recognized 1.0034mm2 · s-1), by means of a series of standard material viscosity, with "L-order phase
Of the Law ", measuring the efflux time t, according to equation (1) calculate the kinematic viscosity values, covering the entire kinematic viscosity measurement
range.
v = C × t (1)
Where.
v --- standard viscosity fluid kinematic viscosity, mm2 · s-1;
C --- viscometer constant, mm2 · s-2;
t --- flow time, s.
NOTE. fresh double distilled water Referring to the technical requirements of ISO /T R3666.1998 (E) execution.
2.5 Viscosity Viscosity national benchmarks to a standard material transfer unit of measure viscosity by direct measurement, in order to ensure that the domestic
Unified viscosity measurement. According to the viscosity of a viscosity standard material, selecting the appropriate outflow time, three of the same diameter
Reference capillary viscometer, at a certain temperature when a material flow through the capillary viscosity standards required for direct measurement
Room kinematic viscosity values calculated according to equation (1).
3 Viscosity measurement standards
A 3.1 Viscosity Standards
3.1.1 a reference material viscosity kinematic viscosity in the range of (1 ~ 1 × 106) mm2 · s-1, setting temperature range
(20 ~ 50) ℃.
3.1.2 a viscosity standard substance relative expanded uncertainty is 20 ℃ viscosity values (0.15 ~ 1.0)% (k = 2).
...
