How to see cheap and inferior pvc garden hose?
Although generally cheap PVC garden hose is also processed by PVC material, also known as PVC hose, there are woven layers inside, but the service life, appearance, smell, compressive strength, tensile strength, working pressure, etc. are significantly different.
The first is the odor, which has not been seen before. It smells first. This odor is emitted from the polybrominated diphenyl ethers contained in the poor quality polyvinyl chloride used to make PVC materials. PBDEs are harmful to humans and the natural environment. The harm is becoming increasingly severe. Its odor is very persistent and strongly fat-soluble. It causes damage to the human liver and nervous system. It also interferes with thyroid endocrine and can easily cause cancer. Now in the United States and Europe and other countries have issued documents in 2003 and 2004, prohibiting the manufacture of such hose, pvc garden hose manufacturing must meet the standards before they can use.
Second, this type of pvc garden hose has poor compressive strength, poor bonding strength, and it is easy to harden in cold weather. Like a wooden stick, it is easy to fold; some pvc
Although the garden hose feels very soft in winter, it is a cold plasticizer when the pvc garden hose is produced. The plasticizer is a phthalate ester and it is a chronic poison to the human body, which can easily cause the decline of liver and kidney function and the reduction of red blood cells in the blood. Mutagenicity and carcinogenicity.
The third layer of knitted fabric is made of poor quality polyester material. The inner layer, outer layer and middle braid layer are not firmly bonded and are easily peeled off. This affects the working pressure and service life of the pvc garden hose.