| Product: | Perls' 1 (A) | | Code: | HK021 | | Lot: | 260108 | | Issue Date: | 15/01/2026 | | Expiry Date: | 2028/01 | | Date of Production: | 07/01/2026 | | HK021 is an aqueous solution of potassium ferrocyanide. It is a component in the Perls' Iron Stain Pack HS652 for the demonstration of iron proteins in tissues. | | This product has been checked against the current TCS specification for the following test(s): | | | | Result | | Reagent Formulation Check | SOP Manual 6 | Conforms |
| Product: | Perls' 2 (B) | | Code: | HK010 | | Lot: | 260109 | | Issue Date: | 15/01/2026 | | Expiry Date: | 2028/01 | | Date of Production: | 07/01/2026 | | Perls' 2 is an aqueous solution of hydrochloric acid. It is a component in the Perls' Iron Stain Pack HS652 for demonstrating the presence of ferric iron salts in tissues. | | This product has been checked against the current TCS specification for the following test(s): | | | | Result | | Reagent Formulation Check | SOP Manual 6 | Conforms |
| Product: | Neutral Red (1% Aqueous) | | Code: | HS555 | | Lot: | 251241 | | Issue Date: | 18/12/2025 | | Expiry Date: | 2027/12 | | Date of Production: | 15/12/2025 | | HS555 is a solution of Neutral Red which is suitable for use as a counterstain in the Gram's Stain technique and in other histological and haematological techniques. | | This product has been checked against the current TCS specification for the following test(s): | | | | Result | | Spectrophotometric analysis | SOP 6A.16 | Conforms |
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