The ASTM D5871 standard applies to all stated limits in this standard: In order to determine consistency with this standard, observed or calculated values should be “rounded” to “nearest unit” in the last right-handed number used when expressing the specification according to the rounding method of practice E29.
abstraction

The specification includes benzene for use as a cyclohexane feedstock. Different tests should be performed to determine the following properties of the cyclohexane feedstock: benzene content, sulfur content, thiophene content, toluene plus methylcyclohexane content, methylcyclopentane content, n-hexane content, pickling color, appearance, color, water content and freezing point on an anhydrous basis.

This summary is a brief overview of the reference standards. It is for reference only and is not an official part of the standard; Reference is required to the full text of the standard itself for its use and application. ASTM makes no warranties of any kind, express or implied, and does not represent that the content of this abstract is accurate, complete or new.

ASTM D5871-2017 “Standard Specification for Benzene from Cyclohexane Feedstock”

Step 1: Scope

1.1 This specification includes benzene as a cyclohexane feedstock.

1.2 The following applies to all specified limits in this standard: In order to determine consistency with this standard, observed or calculated values should be “rounded” to “nearest unit” in the last right-handed digit used in the expression of the specification in accordance with the rounding method of Practice E29.

1.3 Values expressed in SI units shall be considered standard. The values given in parentheses are for reference only.

1.4 Please refer to the current OSHA Regulation provider’s safety data sheet for all materials used in this specification.

1.5 The international standard is based on internationally recognized standardization principles established in the “Decision on Principles for the Development of International Standards, Guidelines and Recommendations” issued by the Committee on Technical Barriers to Trade (TBT) of the World Trade Organization.