Current Category: CN-SH - Petrochemical industry
This standard applies to acrylonitrile-butadiene rubber. The minimum detection limit for the content of nonylphenol in a single component is 14 mg/kg.
This standard applies to powdered and granular polyethylene and polypropylene resins, as well as their copolymers and blends. It uses inductively coupled plasma emission spectrometry to determine the content of trace elements such as magnesium, aluminum, calcium, zinc, chromium, and titanium in these materials.
This standard applies to additive-containing granular propylene homopolymers obtained by polymerizing propylene under the action of a catalyst, which are used in the production of nonwoven fabrics (non-woven fabrics) by spunbonding and the combined process of spunbonding and meltblowing.
This standard applies to ethylene-propylene rubber with a vanadium content ranging from 0.5 μg/g to 40 μg/g, produced using Ziegler-Natta catalysts (aluminum-vanadium catalysts).
This standard is applicable to the determination of the residual unsaturation (i.e., iodine value) of hydrogenated nitrile rubber (HNBR) using Wijs reagent.
This standard provides guidelines for the working principle, general characteristics, analysis procedures, and result reporting of online analyzers used to determine trace amounts of water in light olefin gases
This standard is applicable to the determination of the crystallinity of injection-molded or extrusion-molded samples of granular or powdered polyethylene and polypropylene (α-crystalline, β+α-crystalline). This standard is not applicable to the determination of the crystallinity of filled polyethylene and polypropylene.
This standard applies to powder, molded materials, finished products, or used PE-UHMW, and also applies to PE-UHMW that has been irradiated or chemically cross-linked.
This section applies to propylene homopolymers (PP-H) in the form of powder or (and) spherical particles, which are obtained by polymerization using propylene as the raw material through a continuous process.
This standard applies to synthetic latex containing anionic surfactants.
This standard applies to aromatic hydrocarbons mainly composed of C9 obtained by processing and separating naphtha through a catalytic reforming process. Their main use is as raw materials for the production of xylene, trimethylbenzene, and high-boiling-point aromatic hydrocarbon solvents.
This standard specifies the design principles and technical requirements for the grounding classification, grounding system structure, grounding methods, engineering implementation, grounding resistance, and design solutions of petrochemical instrumentation systems. This standard applies to the engineering design of instrumentation and automatic control systems in new construction, expansion, and renovation projects of enterprises in the petrochemical industry and those that produce oil and chemical products from coal as a raw material.