China Testing & Certification International Group Co., Ltd. (CTC, Stock Code 603060) originated from the testing and certification business of China Building Materials Academy in the 1950s. After 70 years of unremitting efforts and persistent pursuit, the company has formed five business categories: detection and testing, certification and evaluation, testing instruments and intelligent manufacturing, measurement and calibration, scientific research and technical services, committed to providing customers with technical services and comprehensive solutions of detection and testing, certification and evaluation, appraisal, consultation, training, and instruments and equipment in fields of quality, environmental protection, green, safety, health, and energy conservation.

Shandong Measurement Company of CTC provides radio calibration services. Its laboratory holds CNAS accreditation for 2 calibration items. The laboratory strictly implements procedures and specifications such as JJG and JJF to ensure traceability to national measurement standards or public reference standards. Services cover the calibration of low-frequency signal generators, function generators, and other equipment. With a professional team and years of on-site calibration experience, the company can quickly respond to various complex needs, helping enterprises enhance data reliability and compliance.
Currently, the company has established a grid-like layout across Shandong Province, with professional teams in Jinan, Qingdao, Yantai, Linyi, and other cities, enabling rapid on-site services to meet customer needs. Additionally, leveraging group resources, the company provides professional metrology services to large and medium-sized enterprises across China, now serving provinces and cities including Beijing, Liaoning, Inner Mongolia, Hebei, Shaanxi, Anhui, Jiangsu, and Hunan.
Calibration and testing services for low-frequency signal generators
Calibration and testing services for function generators
Low-Frequency Signal Generator
Function Generator
Low-Frequency Signal Generator (Frequency, Voltage, Amplitude-Frequency Characteristics, Distortion): Verification Regulation for Low-Frequency Signal Generators (JJG 602)
Function Generator (Frequency, DC Voltage, Amplitude, Rise Time, Pulse Duty Cycle): Verification Regulation for Function Generators (JJG 840)
State-Owned Background, Credibility Assured: As a state-owned enterprise, Shandong Measurement regards credibility as its lifeblood. Its services are standardized and transparent, with authentic and trustworthy data, making it a reliable long-term partner.
Dedicated Support, Rapid Response: Dedicated account manager one-on-one support from inquiry to after-sales ensures seamless communication. Offers a 7×24 hour emergency response mechanism for urgent needs.
Efficient Process, Time-Saving: Quotation within 1 hour for quick decision-making; On-site calibration scheduled within 3 working days to minimize equipment downtime and maintain production continuity; Authoritative certificate issuance within 7 working days for efficient turnaround.
Hassle-Free After-Sales Service: Free certificate information modification service ensures accuracy; Simplified invoice application process supports fast online processing.
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