BAIJIAN - Third party testing organization
In the chemical composition analysis of copper and copper alloys、 the determination of copper content is inevitable. Therefore、 how to accurately and quickly analyze the copper content in the sample is a great challenge. The two commonly used methods for determining copper content in copper and copper alloys are: 1. Direct electrolysis atomic absorption spectroscopy (measurement range 50.00%~99.00%). 1. Principle: The main principle of this method is to dissolve the test sample with nitric acid and hydrofluoric acid、 Reduce the oxide of nitrogen with hydrogen peroxide、 add lead to reduce the loss of platinum on the anode、 and electrolyze to precipitate copper on the platinum cathode. Weigh after drying the cathode. The residual copper in the electrolyte is determined by flame atomic absorption spectroscopy&Nbsp
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific、 fair、 and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsinspection and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered、 meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing、 with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle、 low cost、 and attentive service 7. Possess authoritative qualifications such as CMA、 CNAS、 CAL、 etc 8. The testing report is authoritative and effective、 and is generally used in China