ISO 10136-4-1993 PDF
Name in English:
St ISO 10136-4-1993
Name in Russian:
Ст ISO 10136-4-1993
Original standard ISO 10136-4-1993 in PDF full version. Additional info + preview on request
Full title and description
ISO 10136-4:1993 — Glass and glassware — Analysis of extract solutions — Part 4: Determination of aluminium oxide by molecular absorption spectrometry. This part specifies a sensitive molecular-absorption method (complexation with chromazurol S) to measure aluminium released into extract solutions from any type of glass or glassware, reporting aluminium as Al2O3.
Abstract
The standard describes preparing and measuring extract solutions produced during hydrochloric resistance and other hydrolytic-resistance tests of glass. Aluminium in the extract is complexed with chromazurol S and the optical density is measured at 545 nm in 10 mm cells; results are reported as aluminium oxide (Al2O3). The procedure is intended for glass used in laboratory, pharmaceutical, food & drink packaging, tableware and kitchenware applications.
General information
- Status: Published — confirmed current after ISO systematic review (confirmed 2020).
- Publication date: July 1993 (First edition).
- Publisher: International Organization for Standardization (ISO).
- ICS / categories: 71.040.20 (Laboratory ware and related apparatus); 81.040.01 (Glass in general).
- Edition / version: Edition 1 (1993).
- Number of pages: 5 pages.
Scope
This part of ISO 10136 specifies an analytical procedure using molecular absorption spectrometry for determining the concentration of aluminium (expressed as Al2O3) released into extract solutions from glass during hydrolytic-resistance tests and other extraction procedures. It applies to extract solutions from any glass or glassware (laboratory, pharmaceutical, food/drink packaging, tableware, kitchenware). The method is intended where aluminium concentrations are very low and high sensitivity is required.
Key topics and requirements
- Analytical principle: complex aluminium with chromazurol S and measure optical density by molecular absorption spectrometry at 545 nm using 10 mm cells.
- Express results as aluminium oxide (Al2O3) rather than elemental aluminium.
- Applicable to extract solutions produced from various extraction procedures (including hydrochloric resistance tests) on different glass types.
- Includes preparation of stock and standard solutions, sample dilution/modification and instrumental measurement details.
- Annex A provided for information (informative).
Typical use and users
Analytical and quality-control laboratories in glass manufacturing, pharmaceutical packaging, food & beverage packaging, university and research labs, test houses and regulatory bodies that assess glass chemical resistance and leaching. Also used by manufacturers for product development and compliance testing.
Related standards
ISO 10136 is a multi-part series on analysis of extract solutions. Related parts include: Part 1 — Determination of silicon dioxide by molecular absorption spectrometry; Part 2 — Determination of sodium oxide and potassium oxide by flame spectrometric methods; Part 3 — Determination of calcium oxide and magnesium oxide by flame atomic absorption spectrometry; Part 5 — Determination of iron(III) oxide by molecular absorption spectrometry and flame AAS; Part 6 — Determination of boron(III) oxide by molecular absorption spectrometry.
Keywords
glass analysis; extract solutions; aluminium oxide; Al2O3; molecular absorption spectrometry; chromazurol S; hydrolytic resistance; glassware testing; analytical method; ISO 10136.
FAQ
Q: What is this standard?
A: ISO 10136-4:1993 is an ISO international standard that defines a molecular-absorption spectrometric method for measuring aluminium (reported as Al2O3) in extract solutions from glass and glassware.
Q: What does it cover?
A: It covers sample preparation, reagents (including use of chromazurol S), calibration (stock and standard solutions), instrument measurement at 545 nm with 10 mm cells, expression of results as Al2O3, and informative annex material. It is intended for very low aluminium concentrations typically obtained from glass extraction tests.
Q: Who typically uses it?
A: Glass manufacturers, packaging producers, independent test laboratories, research institutions, and regulators who need to quantify aluminium leached from glass or to assess hydrolytic resistance.
Q: Is it current or superseded?
A: As of the latest ISO catalogue review, ISO 10136-4:1993 remains published and was last reviewed and confirmed in 2020; the ISO record indicates the edition remains current. Users should check the ISO catalogue for any updates after that confirmation date.
Q: Is it part of a series?
A: Yes — ISO 10136 is a series (multi-part) covering analysis of extract solutions; Part 4 is the aluminium (Al2O3) determination method and other parts address silicon, sodium/potassium, calcium/magnesium, iron and boron.
Q: What are the key keywords?
A: Aluminium oxide, Al2O3, chromazurol S, molecular absorption spectrometry, extract solution, hydrolytic resistance, glassware analysis, ISO 10136.