ASTM E542 PDF

This standard is issued under the fixed designation E ; the number 1 This practice is under the jurisdiction of ASTM Committee E41 on Laboratory. ASTM E Standard Practice for calibration of laboratory volumetric apparatus. pdf – Download as PDF File .pdf), Text File .txt) or read online. Standard Method of Test for Volume of Processed Peat Materials, ASTM Standard Practice for Calibration of Laboratory Volumetric Apparatus, ASTM E

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As a precaution, e5442, it is recommended that the glassware be recalibrated after ten years of service regardless of its appearance. B Applies to Style II only. Minimum Wall Thick- ness, mm. 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.

ASTM E – 01() Standard Practice for Calibration of Laboratory Volumetric Apparatus

Standard Taper Stopper Number B. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Accordingly, the practice should provide a means for checking the original calibration satm glassware and similar apparatus and for periodic rechecks as the need should arise. These cylinders need not be marked with their class designation.

C For Style II, measurement is to bottom of stopper. Typical products falling within the purview of this practice are burets graduated” to deliver”, graduated cylinders, volumetric flasks, specific gravity flasks, measuring and dilution pipets, and transfer and capacity pipets. It is based on the gravimetric determination of the quantity of water either contained or delivered, and the conversion of this value to true volume at the standard temperature of 20 o C by atm of suitable equations and standard f542.

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ASTM E542 – 01(2012)

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Cylinders may be marked with an identification number serial number at the option of the manufacturer.

Historical Version s – view previous versions of standard.

E42 From Scale to Top, mm. Link to Active This link will always route to the current Active version of the standard. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. It is recommended, therefore, that it be recalibrated astj five years of service unless frosting viewed when dry is observed sooner. The products should conform to the required cylinder and base shapes, dimensions, quality of gradation and identification markings, and length of gradation lines.

Calibration using mercury is excluded.

A frosting of the glass surface viewed when dry indicates that chemical attack has occured, and recalibration may be in order. Historical Version s – view previous versions of standard. This specification covers the requirements for laboratory glass graduated cylinders for precision and general purpose grades.

Active view current version of standard. Referenced Documents purchase separately The documents listed below are referenced within the e5422 standard but are not provided astk part of the standard. 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.

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Link to Active This e52 will always route to the current Active version of the standard. Link to Active This link will always route to the current Active version of the standard. A Lines below the first numbered line may be omitted. Maximum Inner Diameter, mm. However, volumetric tolerances for Class B cylinders shall be within twice the specified range allowed for Class A cylinders. Calibration may be performed using alternative gravimetric methodology, provided that it is demonstrated and documented that the results obtained are equivalent to those obtained using the methodology described herein.

Calibration using mercury is excluded. If main graduations are each 5 mL, intermediate graduations do not asstm. This abstract is a brief summary of the referenced standard.

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. The techniques aetm simple in concept and can provide reliable results, provided the procedures are followed faithfully.

The qstm cylinders may be in one of three styles; beaded lip with spout, grounded standard taper neck, or beaded lip with pour spout and reinforcing band near the top. Calibration may be performed using alternative gravimetric methodology, provided that it is demonstrated and documented that the results obtained are equivalent to those obtained using the methodology described herein.

D Main graduations may be each 5 or 10 mL.