Quality Guaranty

Any product which could have conservation defects or non-concordant results, send us a sample of the product through your local sales agent (the rest keep it for a later comprobation) accompained with an explicative note.

Quality Control

A strick and severe quality control plan, examines all raw materials and substances as long as every finished products, in order to deliver insured quality products.

Scientific Technical Service

Tlis Scientific-Technical Departament, is at the disposal of all our customers and professionals for assistance and lnformation.

Norms and regulations

The diagnostic reagent of "in vitro" use cannot be used for direct aplication on the patient. The products comply with the F.A. rules and regulations, and in those where there isn't , with the F.D.A. and W.H.O.

NOTICE ABOUT OUR PRODUCTS

Unless otherwise indicated, all diagnostic reagents and culture media are offered for laboratory use only. We believe that all the data and information in this catalogue is true.

BRITANIA only guaranties that the products perform as described in its literature.

BRITANIA will not be responsable of any incidental, contingent nor consequential damage.

Instructions for the preparation and use of culture media

• Media must be prepared from dehydrated culture media, following the instructions stated on the label.
• Only chemically clean glassware should be used in dissolving the media.
• It is necessary to weigh accurately the dehydrated media and to measure exact volumes of distilled water.
• Dissolve the amount of powder stated on the label, or small or large quantities, which may be easily calculated in the desired amount of freshly distilled or deionized water.
• Heat gently to the boil with frequent agitation, until complete dissolution of the powder and sterilize according to the instructions.
• Excessive heating should be avoided.
• It is essential that the pH after autoclaving be checked regularly. It is especially important to check the final pH of media prepared from dehydrated material, which have been opened to detect changes which may have occurred.

Dehydrated culture media

1. Materials used in the preparation of culture media should be dated when received. Care should be taken to select the oldest batch. Variations may occur between lots or batches of ingredients. It may be necessary to adjust media formulations to meet performance criteria. Complete records should be kept for each batch.

2. Keep the dehydrated media, in a fresh and dry place preferably at temperature below 30°C and at the dark.

3. Check the performance of the prepared media. Performance criteria are available for many media.

4. Check the pH of the prepared media. The pH should be in a range of ± 0.2 of the value indicated on the label.

5. Avoid keeping bottles opened to long, when weighing the powder.

6. Keep the bottles gently closed, since many products are very hygroscopic.

7. Prepared media should be kept at refrigerator temperature, Plated media should be covered with aluminium paper or introduced into plastic bags.

Product storage and handling

Basic products and ingredients for culture media

Keep the flask at temperature bellow 30°C, protected from light, in a dry place and perfectly closed.

Prepared culture media

All rubber capped aluminium tipped prepared media, may be kept at room temperature with the same precautions as with dehydrated media. Screw capped bottles or tubes containing prepared media, should be manteined at room temperature or at 2-8°C depending on the product. Follow labelled instructions.

Antibiotic disk

Antibiotic disk containing beta lactam antimicrobials such as penicillin, oxacillin, ampicillin, imipenem, piperacillin, and cephalosporins, shoud be manteined at

-20°C. All other antibiotic disks may be kept between -20°C and 4°C. Allow the disk to reach room temperature before use.

Disks for identification test

Keep at 2-8°C.

Dye reagents

Keep away from light.

Reagents for identification procedures

Keep at room temperature.

Reagents for immunological or coagulation test

Keep at 2-8°C except Agarose and V.D.R.L. which can be manteined at room temperature.

Other products

Keep at room temperature.