Small New (2018) Brass Bell: 35,200 ppm Lead. 90 ppm is unsafe for kids, yet I often see these in Montessori schools!
$ 17.00 · 4.5 (372) · In stock
When this small (brand new, 2018) hand-held brass bell was tested with an XRF instrument it had the following reading: Lead (Pb): 35,200 ppm +/- 1,000 ppm The concern I have for these small brass items is that they are often given to children to play with and, especially in the case of high-lead brass, Read More about Small New (2018) Brass Bell: 35,200 ppm Lead. 90 ppm is unsafe for kids, yet I often see these in Montessori schools!
Trinity Montessori School
Alaska Business Monthly May 2016 by Alaska Business - Issuu
Safe Air Pollution Levels Could Still Harm Kids' Brains
Lead keeps poisoning children. It doesn't have to.
Lead keeps poisoning children. It doesn't have to.
Children's Manor Montessori School - Bel Air
Small New (2018) Brass Bell: 35,200 ppm Lead. 90 ppm is unsafe for kids, yet I often see these in Montessori schools!
Montessori Teaching Materials Nine Wooden Thousand Cubes
Bells Archives - Lead Safe Mama
High precision acrylic bubble, metal shell, oxide white treatment! It can be adjusted slightly and the measurement is more accurate. Accuracy 0.6mm
Metal high precision strip type adjustable level small level ruler rectangular horizontal bubble (green magnetic)
Even 'safe' pollution levels can cause changes in child brain development: study
Ivory/data/vocab/vocab.ar-en.en at master · lintool/Ivory · GitHub
Silver Tone 2 Bell Create-A-Mission California Mission Miniatures (Pa – CM School Supply