Ang pamantayan ng ASTM D7124 ay nalalapat sa lahat ng nakasaad na limitasyon sa pagtutukoy na ito: In order to determine consistency with this specification, observed or calculated values should be “rounded” sa “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 zeolite-based catalysts. Tests shall be carried out in accordance with the following test methods to determine the performance requirements of benzene: % benzene by weight; Sulfur quality; Thiophene quality; Toluene quality; % non-aromatic by weight; Nitrogen quality; Pickling color; Bromine index, water and appearance.

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 D7124-2017 Standard Specification para sa Benzene Ginamit sa Zeolite based Catalysts

Hakbang 1: Saklaw

1.1 This specification includes benzene for use with zeolite-based catalysts.

1.2 The following applies to all stated limits in this specification: In order to determine consistency with this specification, 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 Values expressed in SI units shall be considered standard. Ang mga halaga na ibinigay sa mga panaklong ay para sa sanggunian lamang.

ASTM D7124-2017 Standard Specification para sa Benzene Ginamit sa Zeolite based Catalysts

1.4 Please refer to the current OSHA regulations, the supplier’s safety data sheet, and local regulations for all materials used in this specification.

1.5 The international standard is based on internationally recognized standardization principles established in the “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.