The ASTM D5309 standard specification covers a grade of cyclohexane known as “cyclohexane 999”.
abstraction
The specification covers a class of cyclohexane known as “cyclohexane 999”. The material shall conform to the required purity, benzene content, n-hexane content, methylcyclohexane content, methylcyclopentane content, sulfur content, hitsura, color and distillation range.

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, ipahayag o ipinahiwatig, at hindi kumakatawan na tumpak ang nilalaman ng abstrak na ito, complete or new.

ASTM D5309-2017 Standard Specification for Cyclohexane 999

Hakbang 1: Saklaw

1.1 This specification covers the cyclohexane grade referred to as “cyclohexane 999”.

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” sa “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 Review current OSHA regulations, supplier safety data sheets, and local regulations for all materials used in this specification.

ASTM D5309-2017 Standard Specification for Cyclohexane 999

1.4 Ang internasyonal na pamantayang ito ay batay sa mga internasyonal na kinikilalang pamantayan na mga prinsipyo na itinatag sa “Desisyon sa Mga Prinsipyo para sa Pag unlad ng Internasyonal na Pamantayan, Mga Patnubay at Rekomendasyon” inisyu ng Committee on Technical Barriers to Trade (TBT) ng World Trade Organization.