Share this article Share this article SHENZHEN, China, May 25, 2021 /PRNewswire/ -- Transpring, a leader in the design and manufacturing of plant extract vapes, has completed a six-month heavy metal testing overseen by BelCosta Labs, becoming the first vape producer to do so following the release of the California Bureau of Cannabis Control (BCC) standards. All tested products successfully passed 180 consecutive days of analysis, demonstrating that Transpring's vape cartridges contain less lead, cadmium, arsenic, and mercury than the high standards set out by the state. This far exceeds the industry practice of single tests that deliver results within seven days, reflecting Transpring's strong commitment to product quality and consumer safety.