BAIJIAN - Third party testing organization
1 Theme and Scope of Application
This standard is applicable to fish and shrimp spawning grounds、 feeding grounds、 wintering grounds、 circular channels、 and aquaculture areas、 as well as freshwater fishing areas.
2 Referenced Standards
GB 5750 Standard Age Testing Method for Domestic Titanium Water
GB 6920 Water Quality Determination of pH Value H Glass Plate Method GB 7467
Water Quality Hexavalent Iron Thickened Dicarbonyl Ether Dicarbonyl Ester Spectroscopy
GB 7468
Water Quality Total Mercury N Fixed Cold Atomic Absorption Spectroscopy
GB7469
Water Quality Total Mercury Determination
Potassium Permanganate Potassium Persulfate Removal Method Double Gland Spectroscopy
GB7470
Water quality
Determination of lead with double protection Fat spectrophotometric method
GB7471
Water quality - Determination of cadmium - Double sulfur pulse spectrophotometric method
GB7472
Water quality - Dense double gland spectrophotometric method for zinc
GB 474
Water quality
Determination of copper - Sodium diethyldithiocarbamate spectrophotometric method
GB 7475
Water quality - Zinc Determination of water quality by atomic absorption spectrophotometry
GB7479
Water quality - Determination of ammonium - Nessler's reagent colorimetric method
GB 7481
Water quality - Determination of nitrogen - Salicylic acid spectrophotometric method
GB 7482
Water quality - Determination of fluoride - Alizarin cobalt sulfonate visual colorimetric method
GB 7484
Water quality - Determination of fluoride - Ion selective electrode method
GB 7485
Determination of total water quality - Silver diethyldithiocarbamate spectrophotometric method
MethodGB 7486
Water Quality - Determination of Cyanide * * Part: Determination of Total Cyanide
GB 7488
Water Quality - Five Day Biochemical Oxygen Demand (BOD5) Dilution and Inoculation Method
GB 74B9
Water Quality - Determination of Dissolved Radon - Iodometric Method
GB7490 Water Quality - Determination of Volatile Phenols - Yanchao Postnitrogen-based Antipyrine spectrophotometric Method - GB 7492
Water Quality -
Determination of Six Major Chemicals - South Extract - Gas Chromatography Method -
GB 8972
Water Quality - Determination of Pentachlorophenol - Gas Chromatography Method -
GB 9803Water Quality - Determination of Pentachlorophenol - Dai Hong T Spectrophotometer -GB 11901 Water Quality - Determination of Suspended Matter - Gravimetric Method
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