Arti dan kegunaannya

4.1 Dilute solutions of peroxides in various organic solvents are often used as catalysts or reaction initiators. Peroxides can also be formed through autoxylation in certain classes of compounds, including ethers, acetals, dienes, and alkyl aromatics, and are a potential safety concern. This test method provides a procedure for determining peroxide or reactive oxygen species levels.

Metode Uji Standar ASTM E299-2017 untuk Jejak Peroksida dalam Pelarut Organik

Melangkah 1: Cakupan

1.1 Metode tes ini 2,3 covers organic solvents containing reactive oxygen species in this range of 5 ke 80 micrograms per gram (PPM) atau lebih tinggi. By using a special reaction absorption cell, the test method can be extended to a range of 0 to 5ppm. This test method can be used to determine a variety of peroxide classes with different reactivity, such as hydroperoxides, diacyl peroxides, diaryl peroxides, peresters, and ketone peroxides. Stable ditertiary alkyl peroxides do not react under analytical conditions.

1.2 Solvents that can be successfully analyzed include saturated and aromatic hydrocarbons, alcohols, ethers, ketones and esters. Selain itu, the test method is suitable for olefin solvents and certain compounds containing alpha, beta and conjugate unsaturation. Solid samples soluble in acetic acid-chloroform solvents can also be analyzed.

1.3 Tinjau Lembar Data Keselamatan saat ini (SDS) untuk rincian tentang toksisitas, first aid measures and safety precautions.

1.4 Nilai yang dinyatakan dalam satuan SI dianggap sebagai nilai standar. Nilai yang diberikan dalam tanda kurung hanya untuk referensi.

1.5 This standard is not intended to address safety concerns, jika ada, terkait dengan penggunaannya. Pengguna standar ini bertanggung jawab untuk menetapkan praktik keselamatan dan kesehatan yang sesuai dan menentukan penerapan pembatasan peraturan sebelum digunakan..

1.6 Standar internasional ini didasarkan pada prinsip-prinsip standardisasi yang diakui secara internasional yang ditetapkan dalam “Keputusan tentang Prinsip Pengembangan Standar Internasional, Pedoman dan Rekomendasi” issued by the WTO Committee on Technical Barriers to Trade (TBT).