Magnesium sulfate heptahydrate will be tested when it leaves the factory. This is to check whether the product is qualified, so that it can ensure that the quality of the product is good, so the test is essential. So what are the relevant requirements for the test?
1. Each batch of magnesium sulfate heptahydrate has a corresponding quality certificate. The content of the quality certificate must be specific. Generally speaking, the quality certificate includes the name of the manufacturer, the site, the name of the product, the grade, the gross weight, the batch number or the date of production, the certificate of the product quality conforming to this specification, and the number of this specification.
2. Sampling is required for the detection of magnesium sulfate heptahydrate. When sampling, the collector should be punctured below the material layer for sampling. The collected samples should be thoroughly mixed and reduced to 500g. The samples should be quickly stored in two clean wide-mouth bottles and sealed for storage. Each bottle must be labelled separately, and the label must specify the name of the manufacturer, product name, grade, batch number, sampling date and sampler. One of these two bottles is used for testing, and the other bottle is sealed for one month for later inspection.
3.检查是否硫酸镁heptahydrate can meet the specifications and select the GB1250 rule.
4. Each batch needs to be delivered within 50t.
5. Inspection time of the application unit. The application unit of the product shall inspect the product within one month from the date of receiving the product.
6. The inspection quality is not qualified.
The above is the introduction of the requirements for testing magnesium sulfate heptahydrate. Basically, the above tests can ensure the quality of the product. When you do the acceptance work, you must pay attention to the outer packaging of the product and choose chemicals produced by regular manufacturers. only guaranteed.