Spectro Scientific has introduced an upgrade to its FieldLab 58 consisting of a more powerful X-ray fluorescence XRF module and newly designed filter that significantly improve the limits of detection for wear metal elements in oil. This is how compEAct works — a sulfur and nitrogen analyzer from Analytik Jena developed for the petrochemical industry. The permanganate index is an assessment of water quality typically used for freshwater and treated drinking waters. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Different tests shall be conducted in order to determine the following properties of glasses: This abstract is a brief summary of the referenced standard.
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A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
Scope 1. Referenced Documents 2. Chemical Requirements 4. The major constituents will be varied to maintain the physical requirements as shown. Two such compositions are shown in Table 2; both are readily available and are used for laboratory apparatus. Physical Requirements 5. Keywords 6. Current edition approved August 15, Published November Originally published as E — Last previous edition E — ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
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ASTM E438 PDF
Low Expansion Borosilicate Glass (ASTM E438 Type I Class A)