SN/T 0188.3-2010Rules for the weight survey by weighing instrument on import and export commodities. Part 3: Weight survey by vehicle weigh-bridge (English PDF)

4.1 Working conditions

4.1.1 engaged in the import and export inspection and quarantine authorities metering goods truck metering chamber, supervision and management should be implemented. Truck metering chamber should be established Strict counter weight, release, transfer and save data and shift system.

4.1.2 Truck measurement of performance shall be subject to periodic verification of qualified inspection and quarantine institution shall send personnel involved in the import and export of goods by truck scale measurement verification Work and make a record, weighing instrument digital adjustable parts (including the design of measurement parameters, linear allocation key, etc.) by the inspection and quarantine agencies to Seals. Electronic truck scale weighing software shall be approved by the metrology department or local inspection and quarantine institutions.

4.1.3 The measuring chamber shall be equipped with necessary monitoring facilities to ensure a balance weight metering and Akishige officer may be observed counter weight automotive-related positions without exception Happening.

4.1.4 Balance Weight job because the wind is too large and the snow and other factors affect the accuracy and authenticity of the counter weight data should be suspended operations.

4.2 Technical requirements

4.2.1 Weighing accuracy should be better than 0.2%.

4.2.2 The test shall obtain a certificate of legal metrology and calibration department qualified and use within the validity period. It should be considered to make the test cycle by circumstances. frequent use of the verification period shall be 3 months, do not use frequent verification period shall be 6 months, the longest shall not exceed one year.

4.2.3 should be non-cumulative continuous automatic vehicle scale or automatic vehicle scale, but should be static weighing.

4.2.4 Accuracy class should reach grade scale.

4.2.5 sub-degree indexing setting value should meet the requirements of truck and heavy truck Kam accuracy.

4.2.6 Using weighing range should be maximum capacity to meet minimum capacity truck scale accuracy.

4.2.7 Approach level of not less than two-thirds the length Weighing countertops length.

4.2.8 Where a device attached to the instrument from the school, in the truck use should be from the school.

4.2.9 Truck test and use the allowable error should meet the requirements in Table 1.