指颜料耐各种气候的能力。其中包括可见光和紫外光、水分、温度、大气氯化作用以及制品使用期间所遇到的化学药剂。最重要的耐候性，包括不褪色性、耐粉化性和物理性能的持久性。而有机颜料则因其结构不同有好有差。此外，在含有白色颜料的配方中，颜料的耐候性会受到较严重的影响。
Premature ventricular contractions are common and typically no result in for concern. But from time to time you might require to discover a health care provider.
Get sufficient slumber. Adopting regular bedtimes and retaining your Bed room amazing and dim may also help to help your sleep good quality.
Your coronary heart has four chambers that pump blood. The 2 on top rated are termed atria, and the two on the bottom are referred to as ventricles. Heartbeats are brought on by electrical fees that trigger the 4 chambers to squeeze and pump blood.
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An occasional coronary heart flutter is just not nearly anything to bother with. They're almost certainly harmless premature ventricular contractions. But When you have lots of these episodes or symptoms such as dizziness or weak spot, talk with your health practitioner. When your PVCs are connected to a more serious problem, treatment may also help.
In the event you are available with indicators of PVCs, you'll get the same take a look at. Through this check, sticky patches with sensors called electrodes are place on your upper body. They record electrical impulses that vacation via your coronary heart.
。乙烯基产品无处不在，包括玩具、汽车内饰、浴帘和地板，最初会向空气中释放化学气体。
The contents of your reaction vessel are pressurized and regularly blended to maintain the suspension and make certain a uniform particle dimension in the PVC resin. The response is exothermic and so requires cooling. As the amount is reduced in the course of the response (PVC is denser than VCM), water is continuously included on the combination to maintain the suspension.[9]
The usual signs and symptoms of PVCs aren't emergencies. But you ought to phone 911 or drop by an crisis place When you've got supplemental indications which include agony in your chest, shortness of breath, confusion, or passing out.
Since physical exercise Positive aspects your Total health and fitness, Medical practitioners won’t normally propose halting performing exercises Because you may have PVCs. PVC Tarpaulin Contemplate talking with a physician about ways to training most safely and securely.
颜料的褪色、变暗或色调变化，一般由颜料的反应基因所致。这些反应性基因，能与大气中的水分或化学药剂——酸、碱发生作用。例如，镉黄在水分和日光作用下会褪色，立索尔红具有较好的耐光性，适合于大多数户内应用，而在含有酸、碱成分的户外使用时严重褪色。
Sometimes, your provider gives distinct PVC therapy. You only need remedy especially for a PVC When you have Recurrent irregular heartbeats that may destruction your coronary heart muscle mass. Therapy could involve:
The outlook for people with PVCs is normally excellent. The majority of people will never need to have treatment and will not have troubles.