Disposable chopsticks (bamboo chopsticks) testing

6.3.5 Physical and chemical index inspection 6.3.5.1 Moisture content inspection 6.3.5.1.1 Testing instruments and tools a) Balance: accuracy of 0.001 g; b) Air convection constant temperature drying oven; c) Drier: Equipped with desiccant, the air inside the dryer should be as close to the dry state as possible. 6.3.5.1.2 Sampling quantity: Randomly select 3 pairs of each sample. The wood chips, fragments, etc. attached to the sample must be removed thoroughly, and each sample must be immediately sealed with a plastic bag for testing. 6.3.5.1.3 The inspection method shall be in accordance with GB/T 1931-1991 6.3.5.2 Inspection of sulfur dioxide leaching amount 6.3.5.2.1 Sampling: Randomly select 5 pairs of samples from the selected laboratory samples, and remove any sawdust, debris, etc. attached to the samples. Cut each pair of disposable wooden chopsticks into wooden sticks approximately 2 cm long and seal them in a clean and sealed sample bag as test samples. 6.3.5.2.2 Test Method: Directly weigh 5 g to 10 g (accurate to 0.01 g) of the prepared sample into a distillation flask, and measure according to GB/T 5009.34-2003 Method 2 (Distillation Method) 9.2. Control the distillation time to 15 minutes. 6.4 Determination of Inspection Results: When all six indicators, including sensory requirements, dimensions and tolerances, material defects, processing quality, microbiological indicators, and physicochemical indicators, pass the inspection, the batch of products is deemed qualified; If one of the microbiological indicators and sulfur dioxide leaching amount is unqualified, the batch of products will be judged as unqualified; If one of the five indicators, including sensory requirements, dimensions and tolerances, material defects, processing quality, and moisture content, is found to be unqualified, retesting is allowed. Double sampling should be conducted on the same batch of products to inspect the unqualified products. If the inspection still fails, the batch of products will be judged as unqualified

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:

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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