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ASTM D6143-05

Заменен
Standard Test Method for Iron Content of Bisphenol A (4,4´ - Isopropylidenediphenol) — 3 стр.
Значение и использование

Iron may increase the color of bisphenol A and affect other properties of end-use products.

High purity bisphenol A typically has less than 1 mg/kg of iron.

Область применения

1.1 This test method covers the procedure to determine the iron content of bisphenol A (4,4´-isopropylidenediphenol).

1.2 This test method has a lower detection limit of 0.1 mg/kg, and an upper limit of 10 mg/kg of iron in bisphenol A. If the iron content is higher, it may be necessary to dilute the sample. A longer path length cell can also be used for better accuracy at lower Fe levels, as well as calibration within the range expected (for example, 0 to 1 mg/kg versus 0 to 10 mg/kg for samples expected to be in the 0 to 1 mg/kg range.

1.3 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E 29.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 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 limits prior to use. For a specific hazard statement, see Section 8.

ICS
71.040.40 Chemical. Including analysis of gases and surface chemical analysis / Химический анализ. Включая анализ газов
Сборник ASTM
06.04 Paint—Solvents; Aromatic; Industrial, Specialty and Related Chemicals / Красители – Растворители; Ароматические углеводороды
Тематика
Chemicals: Paint & Coatings