What kind of sampler should we use?

When using a stainless steel spoon for sampling, your concern is contamination; it should be fine. Observe for some time and then analyze whether the sample has been contaminated. If not, it’s acceptable. Other materials such as PVC pipes can also be used, though it takes more effort to prepare them. This post was last edited by limingshuguang on 2009-2-27 at 11:20

A stainless steel spoon will work just fine, or you can use an antler spoon. What was said on the 2nd floor is right; comparative experiments can be conducted to confirm this.

It is also possible to use a circular tube sampling tube with a tapered head.

It is also possible to use stainless steel for sampling from the pocket. It would be better to install an online sampler on the conveyor pipeline. This post was last edited by limingshuguang on 2009-2-27 at 11:20

We usually use an ivory spoon to take powder samples

For our pharmaceutical companies, stainless steel samplers are generally used; sampling must be carried out in accordance with the established SOPs, and it has to be done by QA personnel – sampling performed by other staff is not valid

To create a conical steel tube groove, simply pierce it without having to open the packaging bag. Slots are easier to clean than tubes, preventing cross-contamination.

What worries me is that the stainless steel spoon won’t be able to reach the material at the bottom of the bag

For sampling solid samples, stainless steel spoons or sampling tubes are suitable, as long as the material of the sampler does not change

It is necessary to be cautious, but using a stainless steel sampling tube may puncture the bag. If your product production is continuous and stable, a sampling spoon will suffice. If you use batch reactors, it is best to treat each individual reactor as a separate batch

Regarding sulfates, stainless steel is a suitable material. However, it depends on the uniformity of your sample. If the sample is uniform, a conical cylindrical sampling tube will suffice; if it isn’t uniform, multiple sampling points need to be considered. Refer to the \"Procedures for Sampling Chemical Products.\" You can also check out this company, which specializes in various types of samplers: http://www.sciflow.com.

Use a shorter sampling drill that does not react with the sample. It can be pulled from top to bottom.

Take a sample from the bag; if not all of it is poured out, a stainless-steel sampling tool with grooves should be used to collect samples from the upper, middle, and lower parts so as to ensure representativeness. If samples are taken from the top and bottom, how can they be obtained?

The factory where I used to work produced NaSCN, batch by batch; each bag contained 200 kilograms of the substance, and it tended to absorb moisture and clump together easily. It was also cut in half diagonally using a PVC pipe and a chainsaw, and it works well. In general, in production processes, it’s not desirable to puncture the bags to take samples, especially for products that are prone to absorbing moisture; this will result in a higher moisture content when the materials are inspected at the recipient’s facility. Moreover, the woven bags also need to be included in the cost calculations. As a workaround, after each production shift, analysts randomly select several bags; samples are taken from the opening of these bags and then the workers seal them immediately. Does my arrangement not quite conform to the sampling rules for chemical products? This post was last edited by limingshuguang on 2009-2-27 11:29.]