| abstract |
The invention provides a sampling method for a sampling device for samples of harmful water-soluble substances, comprising the following steps: step 1 is to install a sealing film on an inner bottle cap, and then install the inner bottle cap on the bottle of the sampling bottle At the mouth; step 2 is to install the outer bottle cap on the inner bottle cap, then pull the sealing plate out of the outer bottle cap through the sampling groove, and then connect the outer bottle cap and the sealing plate through the limit buckle. The position is fixed; step 3 is to connect the lifting rope to the connector of the sampling bottle, and connect the sampling rope to the limit buckle; step 4 is to put the sampling bottle into the sewage to be tested, and connect the sampling bottle to the The lifting rope and the sampling rope are released at the same time. After the sealing film is dissolved in the sewage, the sampling rope is recovered, the limit buckle is pulled out, and the sealing plate passes through the sampling groove and enters the receiving cavity through the action of the torsion spring. , seal the bottle mouth, then recover the lifting rope, and pull out the sampling bottle. |