FAQ Header

Do you issue a Certificate of Analysis for every batch?

Yes — every single batch of TPS-RO-012 green mandarin oil is released with a full Certificate of Analysis (CoA) before shipping. The CoA is traceable to the batch number printed on every drum and jerrican, so you can verify arrival quality against the exact production run.

What the CoA States

SectionContent
IdentityBatch number, production date, botanical source (Citrus reticulata var. unshiu), part used (unripe peel), origin
Physical constantsRelative density, refractive index, optical rotation, peroxide value, acid value, evaporation residue
Component profileGC-MS: D-limonene, gamma-terpinene, alpha/beta-pinene, MNMA, linalool, and other key markers with %
PurityAppearance, solubility, winterization/cooling test, absence of adulterants
SafetyFlash point, GHS classification, UN 1993 confirmation
CompliancePass/fail against GB 29938-2020, ISO 3528:2012 (Green), and FCC 12 as requested
  • The CoA is issued in both Chinese and English, stamped and signed by our QC department
  • For regulated markets, the CoA can be accompanied by the SDS, IFRA CoC, and a letter of origin
  • We keep retained samples of every batch for 24 months — any dispute can be checked against the archive
  • If your customer requires an independent lab report, we can arrange third-party testing (SGS, Intertek) at cost

ผลิตภัณฑ์ที่เกี่ยวข้อง

บทความนี้เผยแพร่เมื่อ 2026-09-07 และอัปเดตล่าสุดเมื่อ 2026-09-29 โดยจะมีการปรับปรุงเนื้อหาอย่างต่อเนื่อง

Logo

Guilin Four Seasons Sunshine

Founded in 2006, Guilin Four Seasons Sunshine F&F Co., Ltd. is a natural plant extract manufacturer and OEM/ODM partner in Guilin, China, combining proprietary Living-Fragrance physical extraction with supercritical fluid extraction to deliver pure, traceable botanical ingredients to global food, flavor, fragrance and personal care brands.