1000 ppm Carbon for TOC made from KHP
https://www.agelessanimals.org/shop/ios-8-500ml-1000-ppm-carbon-for-toc-made-from-khp-56846
https://www.agelessanimals.org/web/image/product.template/56846/image_1920?unique=48e7db8
1000 ppm Carbon TOC reference standard prepared from certified potassium hydrogen phthalate (KHP). Designed for accurate TOC analyzer calibration in environmental, wastewater, and drinking water testing labs. Size: 500mL
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