ISO 1776:1985 Resistance to attack by hydrochloric acid at 100 °C – Flame emission or flame atomic absorption spectrometric method
Introduction to ISO 1776:1985
ISO 1776:1985 covers glass fragments, preferably flat but potentially curved if needed, from laboratory glassware, glass plant components, pipelines, fittings, and other items used for potentially “chemical” applications. When the cut and smoothed edges’ surface area does not surpass 10% of the sample’s total surface area, the glass’s acid resistance “as delivered,” or the acid resistance of the original fire-polished surfaces, can be ascertained. After the hydrofluoric acid treatment has removed the original surface, the acid resistance of the glass “as a material” can be determined. Any borosilicate glass samples extracted from a glass factory, pipeline, or fitting components must undergo this initial acid treatment. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ISO 1776:1985 tests for our clients.
Treatment of 30 to 40 cm2 sample fragments by an aqueous hydrochloric acid solution, c(HCI) = 6 mol/l, at 100 OC for 3 h.
Determining the Amount of alkali metal oxides
The amount of alkali metal oxides removed per unit area is determined using spectrometric techniques for flame emission or flame atomic absorption.
ISO 1776:1985 Test Specimens
Specimen Detail
Three Sample pieces and three blank solutions are tested
Specimen Size
The sample pieces, which come from glassware that has been provided well-annealed, must have a total surface area of 30 to 40 cm2.
ISO 1776:1985 Test Results and Interpretation
In conclusion, the study used flame emission or flame atomic absorption spectrometric methods to evaluate the materials’ resistance to attack by hydrochloric acid at 100 °C. The outcomes show how resilient the materials are to harsh acidic environments, offering vital information about their chemical stability and appropriateness for uses involving high-temperature exposure to hydrochloric acid.
ISO 1776:1985 is related to tests, including ISO 719 for testing and classifying glass grains at 98 °C and ISO 720 for testing and classifying glass grains at 121 0C.
Divakar Shukla is an Electrical and Electronics Engineer specializing in the convergence of embedded systems architecture, industrial automation, and applied artificial intelligence. Know More
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