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English Translations » 信息处理 » Seeking national standard testing methods for p-phenylenedia

Seeking national standard testing methods for p-phenylenediamine and terephthaloyl chloride

2010-07-05View Original

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Seeking national standard testing methods for p-phenylenediamine and terephthaloyl chloride
Reply #22010-07-05
Diphenylamine: QB/T 1863-1993 – Method for determining diphenylamine in hair dyes... QB/T 1863-1993: Determination of diphenylamine in hair dyes by gas chromatography; Light industry standard (QB). QB/T1863-1993 specifies the method for measuring diphenylamine in hair dyes, with a minimum detection concentration of 0.03 mg/... www.51zbz.com/biaozhun/129443.html GB/T 20646-2006 – Rubber additives: Diphenylamine... GB/T 20646-2006: Rubber additives – Test methods for diphenylamine (PPD) as an anti-aging agent. **Standard (GB) GB/T20646-2006: This standard specifies the methods for determining the purity, volatile content, and ash content of diphenylamine (PPD)-type rubber anti-aging agents... www.51zbz.com/biaozhun/56030.html
Reply #32010-07-05
Thank you, I’ll take a look. I also hope everyone can provide methods for terephthaloyl chloride. Thank you

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Translated at 2026-07-27 03:27:24

Original: https://bbs.hcbbs.com/thread-692827-1-1.html

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