Our lead test kit conforms to UN standards and are precision tested for accuracy. Our lead test swabs provides quick results in under , detecting lead in materials with high sensitivity - Giving you peace of mind almost instantly! Shelf life is as long as 2 years. Wet the lead testing swab tip under water (no vinegar required) for 5-8 seconds, shake off excess liquid, and once the lead paint test kit tip turns mustard yellow, promptly rub the for . The result is determined by the colour of the swab after rubbing on the . Easily interpret the results with high selectivity. Compare the color of the lead swab test kit with the provided reference colors. Red//Pink indicates lead detection, while Yellow means no lead detected. The package of the lead testing kit includes user-friendly instructions on how to use the home lead test kit and to interpret the test results. These Lead Testing Swabs are suitable for various surfaces, such as painted, dishes, toys, pottery, jewelry, woodwork, bathtub glazes, antiques, plumbing, and more. Note: Keep away from children and pets, avoid touching the lead check swabs with your hands, and refrain from putting it into your mouth. Our convenient lead paint test kit are perfect for testing walls, floors, baseboards, ceilings and any painted in your home or office. Compact and easy-to-use, these lead check swabs are also perfect supplies for real estate agents, renters, and anyone wanting to test for lead paint in homes. Warm Tips: Do not touch the of the lead swab with your hands to avoid interfering with the test results. Store in a dry, dark place. Keep it out of reach of children and pets. Confirm the expiration date of the swab before use. This lead test swab is only for reference as to whether lead is present and ot measure its specific content. Do not put the swab in your mouth. If the lead test kit turns -red after testing, try multiple tests to confirm consistent results and help from a professional to avoid lead pollution. Quantity:30 Piece Color:As Shown Material:cotton Package Contents: 1set * lead test kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.