Filter Third Party Inspection Guidelines

Faucet filter as a common equipment to improve the quality of home drinking water, its quality is directly related to the user's health and experience.third party inspectionAs a key link in guaranteeing product quality, it can help brands and purchasers objectively assess whether the product meets the standards and requirements. The following is about faucet filter third partyinspection of goodsThe detailed description of the

I. Determining the scope of inspection

1. product body: Filter housings, cartridges, interface components, etc.

2. replacement (parts): Adapters, seals, installation tools, warranty cards, instruction manuals, etc.

3. wrap: Outer box marking, inner packaging protection, product labeling (model, specification, production date, manufacturer, etc.).

II. Core items and requirements for goods inspection

1. Appearance quality inspection

housings: No cracks, deformation, scratches, color difference; smooth surface, no burrs or unevenness; interface threads are clear and intact, no breakage or slippery wire.

filter cartridge: The package is intact, no breakage, leakage of powder (such as activated carbon cartridge), moisture; cartridge and shell assembly is tight, no loosening or gaps.

replacement (parts): No deformation or cracks in adapters, seals, etc.; seals are made of soft material and are not hardened or broken.

Labeling & Packaging: The outer box and product labeling information is clear and complete, consistent with the order; the packaging is not damaged or wet, and internal protection is in place.

2. Functional performance testing

Installation Adaptability: Randomly select samples to simulate common household faucet types (e.g., screw-type, snap-type), and test whether the adapters are conveniently and securely installed, without loosening or leaking.

Sealing test: After installation, turn on the water faucet and run it under rated water pressure for 5-10 minutes to check whether there is water leakage at the seams and interfaces of the filter housing; after turning off the water faucet, observe whether there is any residual leakage.

Flow Test: Under standard water pressure, measure the water flow out of the filter, which needs to meet the requirements of the specification, and the water flow is stable without obvious fluctuation or clogging.

3. Message and marking reconciliation

Manuals & Literature: The instruction manual is complete and contains installation steps, maintenance methods, precautions, warranty terms, etc.; multi-language manuals need to be translated accurately and without ambiguity.

certification mark: The certification mark on the surface of the product or on the package should be real and effective, and can be verified through official channels.

Three,goods inspection processand sampling criteria

1. Sampling rules

Sampling is usually carried out in accordance with international standards (e.g. MIL-STD-105E, ISO 2859) or sampling levels agreed by both parties, and the sample size is determined according to the batch size. Focus on the criteria for determining critical (fatal defects, such as water leakage, excessive material hazards), major (serious defects, such as functional failures, serious damage to appearance), and minor (minor defects, such as minor scratches, blurred labels).

2. Goods inspection process

initial inspection (e.g. of a factory): Verify product model, quantity, and packaging integrity, and confirm that there are no obvious cosmetic or packaging problems.

Detailed inspection: Inspect samples one by one in order of appearance, material, and function, recording the type and number of defects.

Functional Testing: Perform core functional tests such as installation, sealing, flow, etc. on sampled products and record test data.

Verification of information: Check the completeness and accuracy of instructions, certification reports, labeling, and other information.

Defect statistics and determination: Based on the sampling results, the defect rate is counted and compared with the agreed AQL standard to determine whether the whole batch is acceptable or not.

IV. Goods inspection reports and follow-up

1. Basic Information: Order number, product model, lot size, sample size, time and place of inspection.

2. Test results: Pass/Fail for each item (appearance, material, function, documentation) with photos and detailed description of defects.

3. Conclusions: Pass, fail, pending.

4. suggestion: For the unqualified items put forward rectification requirements (such as replacement of broken parts, rework sealing performance), clear re-inspection time and standards.

Through the third-party professional inspection, we can effectively reduce the quality risk of faucet filters and protect the safety and experience of consumers. The inspection process should be strictly based on the standards, focusing on detailed inspection and functional testing to ensure that the product meets the expected requirements. If you have a need for goods inspection, please visitInspection OnlineOfficial website contact us!