B-12D - BOD/GGA Standard, 50 ml, 198 ppm (B12D)

Available in 50 ml vacuum-sealed bottles of solution, prepared and autoclaved to Standard Methods' specifications. Each bottle contains enough standard for 7-8 tests. Use 6 ml right out of the bottle per 300 ml BOD bottle. Replace cap and refrigerate the remainder for future use. Shelf-life is one year. Must be seeded. Our product offers the following advantages over ampules:

✓ No ampules to break. Just unscrew the cap

✓ No multiple dilutions required. Use 6 ml per 300 ml BOD bottle

✓ Minimizes waste. Use what you need, refrigerate the remainder for future use

✓ Shelf-life is 12 months for unopened bottles and 2 months for opened bottles, as long as no contamination has occurred

✓ Lower cost… less than $0.60 per test