abstraction

This specification defines the requirements for paraxylene. Ang sample ay dapat matugunan ang mga sumusunod na pisikal at kemikal na katangian: minimum na kadalisayan; Maximum m-xylene content; Maximum o-xylene content; Maximum sulfur content; Maximum toluene content; Maximum ethylbenzene content; Maximum non-aromatic content; To appear; Kulay (Pt/Co ratio); Distillation range; And maximum pressure.

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 D5136 2019 Mataas na Pagtutukoy ng Pamantayan sa Kadalisayan para sa P Xylene

Hakbang 1: Saklaw

1.1 This specification includes high purity paraxylene.

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 Ang mga pagpapahalagang ipinahayag sa mga yunit ng SI ay dapat ituring bilang mga pamantayang pagpapahalaga. Walang iba pang mga yunit ng pagsukat ang kasama sa pamantayang ito.

ASTM D5136 2019 Mataas na Pagtutukoy ng Pamantayan sa Kadalisayan para sa P Xylene

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.