R137/2012-NL1-2016.09 Rev. 3
OIML Certificate of Conformity
OIML Member State The Netherlands
Number R137/2012-NL1-16.09 revision 3 Project number 1901325
Page 1 of 3
| Issuing authority | NMi Certin B.V. Person responsible: C. Oosterman |
| Applicant and manufacturer | GoldCard Smart Group Co., Ltd. No 158, Jinqiao Street, Economic and Technology development Zone Hangzhou City P.R. China |
| Identification of the certified type | A diaphragm gas meter Type: JK/G2.5 & JK/G1.6 |
| Characteristics | See page 2 |
This Certificate attests the conformity of the above identified type (represented by the sample(s) identified in the OIML Test Report) with the requirements of the following Recommendation of the International Organization of Legal Metrology (OIML):
R 137-1 (2012) "Gas meters"
Accuracy class 1,5
This Certificate relates only to the metrological and technical characteristics of the type of measuring instrument covered by the relevant OIML International Recommendation identified above. This Certificate does not bestow any form of legal international approval.
Important note: Apart from the mention of the Certificate's reference number and the name of the OIML Member State in which the Certificate was issued, partial quotation of the Certificate and of the associated OIML Type Evaluation Report(s) is not permitted, although either may be reproduced in full.
Issuing Authority
NMi Certin B.V., OIML Issuing Authority NL1 28 August 2017
C. Oosterman Head Certification Board
This document is issued under the provision that no liability is accepted and that the applicant shall indemnify third-party liability.
The notification of NMi Certin B.V. as Issuing Authority can be verified at www.oiml.org
OIML Certificate of Conformity
OIML Member State The Netherlands
Number R137/2012-NL1-16.09 revision 3 Project number 1901325 Page 2 of 3
The conformity was established by the results of tests and examinations provided in the associated OIML Type Evaluation Report:
No. NMi-13200784-01 dated 12 March 2015 that includes 35 pages;
No. NMi-16200632-01 dated 29 September 2016 that includes 15 pages.
Characteristics of the gas meter:
Table 1 gives the general characteristics of the meter type. Table 2 and 3 specify in detail the essential characteristics and verification scale interval.
| Table 1: General characteristics | |
| Destined for the measurement of | Gas volume |
| Mechanical class | M2 |
| Electromagnetic class | E1 |
| Ambient temperature range | -25℃/+55℃ |
| Gas temperature range | -25℃/+55℃ |
| Orientation | Horizontal |
| Flow direction | Uni-directional |
| Distance between the connections | 110 to 130mm |
| Cyclic volume[dm3] | Qmax[m3/h] | Qt[m3/h] | Qmin[m3/h] | |
| JK/G2.5 | 0.9 | 4 | 0.4 | 0.025 |
| JK/G1.6 | 0.9 | 2.5 | 0.25 | 0.016 |
Remarks regarding Table 2:
- The working pressure range for all "diaphragm gas meters" is atmospheric up to and including 0,5 bar(g).
| Table 3: Verification scale interval | |||
| Type | number of drums | control-element[m3] | |
| before the comma | behind the comma | ||
| JK/G2.5 | 5 | 3 | 0.0002 |
| JK/G1.6 | 5 | 3 | 0.0002 |
| Revision | Date | Description of the modification |
| Initial | 29 September 2016 | - |
| 1 | 17 October 2016 | Correction in given Type Evaluation Report: - NMi-16200632-01 (corrected date) |
| 2 | 4 August 2017 | Updated manufacturer name Clarified possible distances between the connections |
| 3 | 28 August 2017 | Typing error in date of issuing and date in certificate history |