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Certificate of Analysis

Product:	Rapid Romanowsky Stain Pack
Code:	HS705
Lot:	241154
Issue Number:	1
Issue Date:	02/12/2024
Expiry Date:	2027/11
Date of Production:	26/11/2024
Storage:	Store in a cool, dry, well-ventilated place.
HS705 is a pack of reagents which are suitable for use in the Rapid Romanowsky stain technique in haematology and cytology.

Kit components:

Product:	Methanol (Methyl Alcohol)
Code:	HC8725
Lot:	241135
Issue Date:	28/11/2024
Expiry Date:	2026/11
Date of Production:	18/11/2024
HC8725 is a clear alcoholic liquid suitable for use as a general solvent and in various testing procedures. Typical Product Assay Assay (as alcohol): 99.85% (by volume) Water: ≤0.1% Acidity: ≤30ppm as acetic acid. Appearance: Clear, colourless liquid. BP: 64oC FP: -98oC Density: 0.791-0.793 g/ml at 25°C
This product has been checked against the current TCS specification for the following test(s):
		Result
Visual QC check	SOP Manual 6	Conforms

Product:	Rapid Romanowsky Stain Solution B
Code:	HS705B
Lot:	241139
Issue Date:	27/01/2025
Expiry Date:	2027/11
Date of Production:	20/11/2024
HS705B is an aqueous solution of Eosin Y together with Phosphate Buffer Salts which is suitable for use as a part of a Rapid Romanowsky stain technique in haematology and cytology.
SOP 6A.0 tests carried out in conjunction with HS705A and HS705C
This product has been checked against the current TCS specification for the following test(s):
		Result
Spectrophotometric analysis	SOP 6A.16	Conforms
Stain intensity	SOP 6A.0	Conforms
Stain colour	SOP 6A.0	Conforms
Background	SOP 6A.0	Conforms
Absence of precipitate	SOP 6A.0	Conforms
Uniform staining	SOP 6A.0	Conforms

Product:	Rapid Romanowsky Stain Solution C
Code:	HS705C
Lot:	241138
Issue Date:	27/01/2025
Expiry Date:	2027/11
Date of Production:	20/11/2024
HS705C is an aqueous solution of Azur II together with phosphate buffer salts which is suitable for use as a part of a Rapid Romanowsky stain technique in haematology and cytology.
SOP 6A.0 tests carried out in conjunction with HS705A and HS705B
This product has been checked against the current TCS specification for the following test(s):
		Result
Spectrophotometric analysis	SOP 6A.16	Conforms
Stain intensity	SOP 6A.0	Conforms
Stain colour	SOP 6A.0	Conforms
Background	SOP 6A.0	Conforms
Absence of precipitate	SOP 6A.0	Conforms
Uniform staining	SOP 6A.0	Conforms

For professional use only.

Approved by QC.

TCS Biosciences Ltd - Quality Control Department TCS Biosciences Ltd
Botolph Claydon
Buckingham
MK18 2LR
United Kingdom

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