3.2.2. Plastic Containers And Closures For Pharmaceutical Use 4e2k4w

3.2.2. Plastic containers and closures for pharmaceutical use

determine the approximate concentrations of sodium oxide (and potassium oxide and calcium oxide, if present) by reference to calibration graphs produced from the reference solutions of suitable concentration. FINAL DETERMINATION If dilution is unnecessary add to each container a volume of the spectrochemical buffer solution equivalent to 5 per cent of the filling volume, mix well and determine sodium oxide, calcium oxide and potassium oxide, if present, by reference to calibration graphs. For the determination of the calcium oxide concentration by flame atomic spectrometry, the nitrous oxide/acetylene flame shall be used. If dilution is necessary, determine sodium oxide, calcium oxide and potassium oxide, if present, following the procedures as described above. The measuring solutions shall contain 5 per cent V/V of the spectrochemical buffer solution. Concentration values less than 1.0 µg/ml are expressed to 2 decimal places, values greater than or equal to 1.0 µg/ml to 1 decimal place. Correct the result for the buffer addition and for dilution, if any. CALCULATION Calculate the mean value of the concentration of individual oxides found in each of the samples tested, in micrograms of the oxide per millilitre of the extraction solution and calculate the sum of the individual oxides, expressed as micrograms of sodium oxide per millilitre of the extraction solution using the following mass conversion factors : — 1 µg of potassium oxide corresponds to 0.658 µg of sodium oxide, — 1 µg of calcium oxide corresponds to 1.105 µg of sodium oxide. Limits. For each container tested, the result is not greater than the value given in Table 3.2.1.-7. Table 3.2.1.-7. – Limit values in the test for surface hydrolytic resistance by flame atomic absorption spectrometry Maximum values for the concentration of oxides, expressed as sodium oxide (µg/ml) Filling volume (ml)

Glass containers Types I and II

Up to 1

5.00

Above 1 and up to 2

4.50

Above 2 and up to 5

3.20

Above 5 and up to 10

2.50

Above 10 and up to 20

2.00

Above 20 and up to 50

1.50

Above 50 and up to 100

1.20

Above 100 and up to 200

1.00

Above 200 and up to 500

0.75

Above 500

0.50

EUROPEAN PHARMACOPOEIA 5.0

01/2005:30202

3.2.2. PLASTIC CONTAINERS AND CLOSURES FOR PHARMACEUTICAL USE A plastic container for pharmaceutical use is a plastic article which contains or is intended to contain a pharmaceutical product and is, or may be, in direct with it. The closure is a part of the container. Plastic containers and closures for pharmaceutical use are made of materials in which may be included certain additives ; these materials do not include in their composition any substance that can be extracted by the contents in such quantities as to alter the efficacy or the stability of the product or to present a risk of toxicity. The most commonly used polymers are polyethylene (with and without additives), polypropylene, poly(vinyl chloride), poly(ethylene terephthalate) and poly(ethylene-vinyl acetate). The nature and amount of the additives are determined by the type of the polymer, the process used to convert the polymer into the container and the intended purpose of the container. Additives may consist of antioxidants, stabilisers, plasticisers, lubricants, colouring matter and impact modifiers. Antistatic agents and mould-release agents may be used only for containers for preparations for oral use or for external use for which they are authorised. Acceptable additives are indicated in the type specification for each material described in the Pharmacopoeia. Other additives may be used provided they are approved in each case by the competent authority responsible for the licensing for sale of the preparation. For selection of a suitable plastic container, it is necessary to know the full manufacturing formula of the plastic, including all materials added during formation of the container so that the potential hazards can be assessed. The plastic container chosen for any particular preparation should be such that : — the ingredients of the preparation in with the plastic material are not significantly adsorbed on its surface and do not significantly migrate into or through the plastic, — the plastic material does not release substances in quantities sufficient to affect the stability of the preparation or to present a risk of toxicity. Using material or materials selected to satisfy these criteria, a number of identical type samples of the container are made by a well-defined procedure and submitted to practical testing in conditions that reproduce those of the intended use, including, where appropriate, sterilisation. In order to confirm the compatibility of the container and the contents and to ensure that there are no changes detrimental to the quality of the preparation, various tests are carried out such as verification of the absence of changes in physical characteristics, assessment of any loss or gain through permeation, detection of pH changes, assessment of changes caused by light, chemical tests and, where appropriate, biological tests. The method of manufacture is such as to ensure reproducibility for subsequent bulk manufacture and the conditions of manufacture are chosen so as to preclude the possibility of contamination with other plastic materials or their ingredients. The manufacturer of the product must ensure that containers made in production are similar in every respect to the type samples.

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See the information section on general monographs (cover pages)

EUROPEAN PHARMACOPOEIA 5.0

3.2.3. Sterile plastic containers for human blood

to 30 min and maintain at this temperature for 30 min. If heating at 121 °C leads to deterioration of the container, heat at 100 °C for 2 h. Blank. Prepare a blank by heating water R in a borosilicate-glass flask closed by a sheet of pure aluminium at the temperature and for the time used for the preparation of solution S. Appearance of solution S. Solution S is clear (2.2.1) and colourless (2.2.2, Method II). Acidity or alkalinity. To a volume of solution S corresponding to 4 per cent of the nominal capacity of the container add 0.1 ml of phenolphthalein solution R. The solution is colourless. Add 0.4 ml of 0.01 M sodium hydroxide. The solution is pink. Add 0.8 ml of 0.01 M hydrochloric acid and 0.1 ml of methyl red solution R. The solution is orange-red or red. Absorbance (2.2.25). Measure the absorbance of solution S from 230 nm to 360 nm, using the blank (see solution S) as the compensation liquid. At these wavelengths, the absorbance is not greater than 0.20. 01/2005:90003 Reducing substances. To 20.0 ml of solution S add 1 ml of dilute sulphuric acid R and 20.0 ml of 0.002 M potassium permanganate. Boil for 3 min. Cool immediately. Add 1 g 3.2.2.1. PLASTIC CONTAINERS of potassium iodide R and titrate immediately with 0.01 M sodium thiosulphate, using 0.25 ml of starch solution R as FOR AQUEOUS SOLUTIONS FOR indicator. Carry out a titration using 20.0 ml of the blank. PARENTERAL INFUSION The difference between the titration volumes is not greater than 1.5 ml. DEFINITION Transparency. Fill a container previously used for the Plastic containers for aqueous solutions for parenteral preparation of solution S with a volume equal to the nominal infusion are manufactured from one or more polymers, capacity of the primary opalescent suspension (2.2.1) if necessary with additives. The containers described in diluted 1 in 200 for a container made from polyethylene this section are not necessarily suitable for emulsions. or polypropylene and 1 in 400 for other containers. The The polymers most commonly used are polyethylene, polypropylene and poly(vinyl chloride). The specifications of cloudiness of the suspension is perceptible when viewed through the container and compared with a similar container this text are to be read in conjunction with section 3.2.2. filled with water R. Plastic containers and closures for pharmaceutical use. The containers may be bags or bottles. They have a site LABELLING suitable for the attachment of an infusion set designed to The label accompanying a batch of empty containers includes ensure a secure connection. They may have a site that allows a statement of: an injection to be made at the time of use. They usually — the name and address of the manufacturer, have a part that allows them to be suspended and which will withstand the tension occurring during use. The containers — a batch number which enables the history of the container and of the plastic material of which it is manufactured must withstand the sterilisation conditions to which they will to be traced. be submitted. The design of the container and the method of sterilisation chosen are such that all parts of the containers 01/2005:30203 that may be in with the infusion are sterilised. The containers are impermeable to micro-organisms after closure. The containers are such that after filling they are resistant 3.2.3. STERILE PLASTIC CONTAINERS to damage from accidental freezing which may occur during FOR HUMAN BLOOD AND BLOOD transport of the final preparation. The containers are and COMPONENTS remain sufficiently transparent to allow the appearance of the contents to be examined at any time, unless otherwise Plastic containers for the collection, storage, processing justified and authorised. and istration of blood and its components are The empty containers display no defects that may lead to manufactured from one or more polymers, if necessary leakage and the filled and closed containers show no leakage. with additives. The composition and the conditions of For satisfactory storage of some preparations, the container manufacture of the containers are ed by the appropriate competent authorities in accordance with the has to be enclosed in a protective envelope. The initial relevant national legislation and international agreements. evaluation of storage has then to be carried out using the container enclosed in the envelope. When the composition of the materials of the different parts of the containers correspond to the appropriate TESTS specifications, their quality is controlled by the methods Solution S. Use solution S within 4 h of preparation. Fill a indicated in those specifications (see 3.1. Materials used for container to its nominal capacity with water R and close it, if the manufacture of containers and subsections). Materials other than those described in the Pharmacopoeia possible using the usual means of closure ; otherwise close may be used provided that their composition is authorised using a sheet of pure aluminium. Heat in an autoclave so by the competent authority and that the containers that a temperature of 121 ± 2 °C is reached within 20 min For the results of the testing on type samples to remain valid, it is important that : — there is no change in the composition of the material as defined for the type samples, — there is no change in the manufacturing process as defined for the type samples, especially as regards the temperatures to which the plastic material is exposed during conversion or subsequent procedures such as sterilisation, — scrap material is not used. Recycling of excess material of well-defined nature and proportions may be permitted after appropriate validation. Subject to satisfactory testing for compatibility of each different combination of container and contents, the materials described in the Pharmacopoeia are recognised as being suitable for the specific purposes indicated, as defined above.

General Notices (1) apply to all monographs and other texts

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