ASTM-C225 Standard Test Methods for Resistance of Glass Containers to Chemical Attack

ASTM-C225 - 1985 R14 EDITION - CURRENT
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Standard Test Methods for Resistance of Glass Containers to Chemical Attack
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Scope

1.1 These test methods cover the evaluation of the resistance of glass containers to chemical attack. Three test methods are presented, as follows:

1.1.1 Test Method B-A  covers autoclave tests at 121°C on bottles partially filled with dilute acid as the attacking medium.

1.1.2 Test Method B-W  covers autoclave tests at 121°C on bottles partially filled with distilled water as the attacking medium.

1.1.3 Test Method P-W  covers autoclave tests at 121°C on powdered samples with pure water as the attacking medium.

1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Significance and Use

3.1 The solubility of glass in contact with food, beverages, or pharmaceutical products is an important consideration for the safe packaging and storage of such materials. Autoclave conditions are specified since sterilization is often employed for the packaging of the product. It also represents one of the most extreme conditions, particularly of temperature, that containers will ordinarily experience. Any of the three test methods described may be used to establish specifications for conformity to standard values, either as specified by a customer, an agency, or “The United States Pharmacopeia:”

3.1.1 Test Method B-A  is intended particularly for testing glass containers primarily destined for containment of products with a pH under 5.

3.1.2 Test Method B-W  is intended particularly for testing glass containers to be used for products with a pH of 5.0 or over.

3.1.3 Test Method P-W  is a hydrolytic autoclave test primarily intended for evaluating samples from untreated glass containers. It is often useful for testing the resistance of containers of too small capacity to permit measurements of solubility on the unbroken article by the B-W test method. Yielding the water resistance of the bulk glass, it can also be used in conjunction with the B-W test method to distinguish whether the internal surface of a container has been treated to improve its durability.

3.2 All three test methods are suitable for specification acceptance.

Keywords

chemical attack; containers; durability; glass; ICS Number Code 81.040.30 (Glass products)

To find similar documents by ASTM Volume:

15.02 (Glass; Ceramic Whitewares)

To find similar documents by classification:

81.040.30 (Glass products Bottles, pots, jars, see 55.100 Laboratory glassware, see 71.040.20)

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Document Number

ASTM-C225-85(2014)

Revision Level

1985 R14 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

Oct. 1, 2014

Document Type

Test Method

Page Count

7 pages

Committee Number

C14.02