ASTM D4727 PDF

More D Corrugated fiberboards shall be manufactured with two, three, or four facings for single-, double-, or triple-wall varieties, respectively, with each facing separated by and securely adhered to the corrugating medium of any suitable fiber. Solid fiberboards, on the other hand, shall be manufactured from plies securely and continuously laminated together. The facings of corrugated fiberboards and plies of solid fiberboards shall conform to the requirements specified. Tests for thickness, basis weight, puncture resistance, ply separation, bursting strength, flame spread, specific optical density, and edge crush shall be performed and shall conform to the requirements specified. This abstract is a brief summary of the referenced standard.

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More D Additional anions, such as carboxylic acids, can also be quantified. See 6. The quantitation of unretained peaks should be avoided. Anions such as low molecular weight organic acids formate, acetate, propionate, etc. The water dip can be further minimized if measures are taken to remove carbonic acid which remain in the eluent after suppression using carbonate based eluents.

There is no water dip if hydroxide eluents are used. Scope 1. Lower detection limits have been observed with newer instrumentation, column technology and eluents. The analyst must assure optimum instrument performance to maintain a stable baseline at more sensitive conductivity full-scale settings. Detector: as specified in 7. Eluent: as specified in 8. Pump rate: 2. These limits may be extended by appropriate dilution or by use of a smaller injection volume.

This is not the subject of this test method. This approval is based on acceptance by the U. EPA as referenced in Appendix X2. No other units of measurement are included in this standard. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

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