Baijia.net - a professional third-party testing and inspection platform that provides relevant testing and inspection services such as industrial salt
The detection methods for sulfate ions in water mainly include gravimetric method and EDTA volumetric complexometric titration, and are compared with barium sulfate gravimetric method. The detection principle is to combine sulfate ions with barium sulfate ions to form barium sulfate and weigh its mass. For commonly used chloride detection methods, one is the silver content method. Titrate with silver nitrate standard titrant using industrial salt solution as indicator. Another method is automatic potentiometric titration. Titrate the sample solution with silver nitrate standard titrant and read the data using an automatic potentiometric titrator. These two methods only differ in terms of detection instruments, but there is no difference in the main principles of sample pretreatment and detection. 3. Determine calcium and magnesium using the calcium magnesium ion method. The main method provided is the determination of calcium and magnesium content, which is only compared with the volumetric method. The main differences between the two standards are sample weight, calcium index, and specific actual differences. EDTA complexometric titration method is used
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 problems
BAIJIAN 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 required
Our Competitive Edge:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby
3. 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
Contact: Mr. Li
Phone: 156-0190-2607
Tel: 400-101-7153
Email: service@Baijiantest.com
Add: No. 700, Yishan Road, Xuhui District, Shangha