We manufacture and distribute fine chemicals and laboratory
products - with quality and delivery you can count on every time.
Description Back to Top
• Intended Use: Letheen Broth with Tween, Modified is used for the recovery of microorganisms from cosmetics.
• Product Summary and Explanation: In 1948, Weber and Black described the value of a highly nutritional solid medium containing neutralizing agents for quaternary ammonium compounds in sanitizers. The addition of Lecithin and Polysorbate 80 to Tryptone Glucose Extract (TGE) Agar resulted in a medium that effectively neutralizes quaternary ammonium compounds in testing of germicidal activity. Total neutralization of disinfectants is critical. Disinfectant residues can result in a false negative (no-growth) test.
Letheen Broth with Tween, Modified is based on the formula described in FDA Bacteriological Analytical Manual, and a modification of Letheen Broth Base. Letheen Broth with Tween, Modified is recommended by the FDA for use in the microbiological testing of cosmetics. Letheen Broth with Tween, Modified has incorporated Polysorbate 80 (Tween) into the medium.
Image(s) are representative of the product group and not necessarily the individual product.
Certifications Back to Top
Shipping Back to Top
Spectrum Chemical Mfg. Corp. offers a flat fee shipping when items are shipped “directly from Spectrum warehouses” by regular UPS ground within the contiguous United States. There are some additional charges that are item specific. Not included are any expedited or LTL shipments or dIrect shipped items from Spectrum vendors or manufacturers which are charged at published carrier rates.
|Order Sub-Total||Shipping Charge|
|$0 - <$299.99||$19.25|
|$300 - <$499.99||$32.50|
|$500 - <$999.99||$44.75|
|Additional Charge Items||Shipping Charge|
|Hazard Charge - Ground||$33.00 per box|
|Hazard Charge - Air||$46.50 per box|
|Poison Pack Charge (Small)||$15.00 per box|
|Poison Pack Charge (Large)||$25.00 per box|
|Ice Pack Charge (Small)||$10.00 per box|
|Ice Pack Charge (Large)||$15.00 per box|
|Pallet Charge (Wood Pallet)||$25.00 per box|
|Pallet Charge (Plastic Pallet)||$40.00 per box|
|Fuel Surcharge (<$400 subtotal)||$5.85|
|Fuel Surcharge (>$400 subtotal)||$10.55|
Reviews Back to Top