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Is there a clear regulation on the service life of tap water meters in China? What are the specific regulations?
Service life shall not exceed 6 years (caliber 15-25mm) or 4 years (caliber >); 25-50mm), due to rotation.
The form and scope of compulsory verification of measuring instruments 199 1 State Bureau of Quality and Technical Supervision promulgated it on August 6th.
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