專用觀測站觀測儀器校驗辦法

This Regulations is enacted in accordance with the terms in Paragraph 6 of Article 20, Meteorological Act.

1The Central Weather Bureau （hereinafter referred to as CWB）of the Ministry of Transportation and Communications

2（hereinafter referred to as MOTC）, the laboratory accredited by the Chinese National Laboratory Accreditation, or the

3laboratory accredited by a cross-recognized foreign country（hereinafter either of the three laboratories aforementioned is

4referred to as the Calibration Unit）, may accept the application of an exclusive observation station to calibrate its equipped

5observation instruments according to Paragraph 1 of Article 20, Meteorological Act.

1The standard for calibration of observation instruments shall trace to the standard of the National Laboratory of Weights and

2Measures Standard, Bureau of Standards, Metrology, and Inspection, Ministry of Economic Affairs, or the national standard of

3a cross-recognized foreign country; the calibration cycle of observation instruments shall follow the rules of the individual

4Calibration Unit.

5The preceding rules of calibration shall be enacted separately.

1An exclusive observation station shall follow a self-decided calibration cycle of each equipped observation instrument and

2apply for an instrument calibration from a Calibration Unit to prove it be qualified for use, and then can be used.

3The error of an observation instrument is within the tolerant error as listed in the attached “Criteria for accreditation of the

4observation instruments” shall be considered as qualified.（see attached tables）

5The difference between the displayed value of the observation instrument under calibration and the standard value of the

6standard device is named the error of that observation instrument; the tolerant errors settled for each type of observation

7instruments are named the maximum permissible errors.

1Should the observation instrument(s) of an exclusive observation station shows an error caused by natural disaster or other

2causes, an application for calibration from a Calibration Unit is needed.

1Should the CWB find that the observation record of a certain observation instrument of an exclusive observation station had

2successive or obvious errors, CWB may inform that station to stop using that instrument and order to send it for calibration.

1An exclusive observation station shall fill in an application form and turn in a calibration fee when applying for a calibration of

2its equipped observation instrument.

3When apply for a calibration from the CWB, the calibration fee shall be charged in accordance with the provisions enacted by

4the MOTC according to Paragraph 2 of Article 30, Meteorological Act.

5When apply for a calibration from a Calibration Unit other than the CWB, the calibration fee shall be charged in accordance

6with the provisions enacted by that unit.

1The calibration of observation instrument(s) shall be conducted at a Calibration Unit; whereas the Calibration Unit may send its

2faculties to its place to conduct an in-situ calibration upon the request and application of the exclusive observation station under

3at least one of the following conditions:

41.Too big to move;

52.Adhered to the ground, a building, or other mechanic equipment and hard to tear apart;

63.It’s liable to be damaged or lose its accuracy while moving or other considerations.

7For applying to the CWB for a calibration, the applicant shall not only turn in the application fee (stipulated fees) in accordance

8with Paragraph 2 of Article 30, but also pay for the errand costs (including transportation fees), overhead fees, and/or other

9necessary expenditures.

1The observation instrument sent for calibration shall bear marks of the brand of production or factory logo, serial number of

2production, engraved scale, and the vernier (if any); the attached technical document or brochures shall also be submitted for

3calibration’s reference.

4Auto-recording types of instrument for calibration shall be submitted with its recording or displaying device(s); power supply

5exclusively used for the instrument shall be sent together.

1Should the observation instrument sent for calibration is totally damaged, seriously contaminated, or not useable, the

2Calibration Unit might reject the application.

The Calibration Unit may tear apart or ask the applicant to tear apart the instrument for partial calibration, if necessary.

1If the instrument sent for calibration with two (2) or more scales and any one of them fails to meet the criteria, the whole

2instrument shall be considered as a failed one.

1The Calibration Unit shall issue a certificate to those instruments that passed the calibration, or a notice to those stations with

2instruments failed to pass the calibration.

1The format of the application form, certificate, and notice aforementioned in this Regulations shall be determined by the

2Calibration Unit.

1This Regulations shall become effective on the date of promulgation.

2Criteria for accreditation of the observation instruments

3A. Atmospheric Pressure Measuring Instrument

4Unit : hectopascal（Symbol : hPa）

5Types of InstrumentMeasuring Range Maximum Permissible Error

6Precision Mercurial

7Barometer866~1050hPa

8（650~787mmHg）±0.33hPa

9（±0.25mmHg）

10Fortin-type Mercurial

11Barometer866~1050hPa