Sample Test Results & COA Reference

2024 SAMPLE REFERENCE

Konjac gum sample

Report reference: XSP202410483

6 entries

Product name in report: Konjac gum
Sample grade: Super grade
Sample No.: XSP202410483
Produced / purchased / processed date: 2024-03-28
Sample received / tested: 2024-04-01
Report issued: 2024-04-26
Production lot No.: Not stated in report

Report assessment basis: NY/T 494-2010 and GB 2760-2014. The criteria below are those printed in this report.

2024 sample data
Test item	Test method	Unit	Report criterion	Result / update	Source / conclusion
Viscosity (No. 4 rotor, 12 r/min, 30°C)	NY/T 494-2010 6.2.1	mPa·s	≥18000	38000	Conforming
Glucomannan (dry basis)	NY/T 494-2010 Appendix A	%	≥70	91.0	Conforming
pH (1% aqueous solution)	NY/T 494-2010 6.2.3	—	5.0–7.0	5.83	Conforming
Residual sulfur dioxide	GB 5009.34-2022, Method 1	g/kg	≤0.9	0.366	Conforming
Water content	GB 5009.3-2016, Method 1	%	≤11.0	7.52	Conforming
Sand content	GB/T 5508-2011	%	≤0.04	0.01	Conforming

2026 SAMPLE REFERENCE

Purified konjac powder sample

Report reference: SP2605-0728-001

12 entries

Product name in report: Purified konjac powder
Sample grade: Super grade
Sample No.: SP2605-0728-001
Produced: 2026-05-08
Pack size stated in report: 500 g / bag
Sample received: 2026-05-12
Test period: 2026-05-12 to 2026-05-19
Report issued: 2026-05-19
Production lot No.: Not stated in report

Report assessment basis: NY/T 494-2010 and GB 2760-2024. The report concludes that tested items with specified criteria conform; items without specified criteria are reported as results only.

Supplier-provided update · 16 October 2026

The 93% glucomannan figure was provided by the supplier on 16 October 2026. A revised test report has not been reviewed. This figure is not presented as the result recorded in the historical report.

2026 sample data and separately marked supplier update
Test item	Test method	Unit	Report criterion	Result / update	Source / conclusion
Color	NY/T 494-2010	—	White; a very small amount of pale yellow particles is permitted	White	Conforming
Appearance / form	NY/T 494-2010	—	Purified refined konjac flour: granular, without lumps or mold; purified konjac fine powder: powdery with a small amount of granules	Purified konjac fine powder, powdery with a small amount of granules	Conforming
Odor	NY/T 494-2010	—	A very slight inherent fishy odor of konjac and alcohol odor are permitted	Very slight inherent fishy odor of konjac and alcohol odor	Conforming
pH (1% aqueous solution)	NY/T 494-2010	—	5.0–7.0	6.28	Conforming
Viscosity (No. 4 rotor, 12 r/min, 30°C)	NY/T 494-2010 6.2.1	mPa·s	≥28000	34466	Conforming
Water content	GB 5009.3-2016, Method 1	%	≤10.0	8.51	Conforming
Particle size (as defined)	NY/T 494-2010 6.2.7	%	≥90	99.2	Conforming
Ash	GB 5009.4-2016, Method 1	%	≤3.0	2.0	Conforming
Glucomannan (dry basis) — supplier-provided update*	Not provided for this update	%	Not provided for this update	93	Supplier-provided update
Residual sulfur dioxide	GB 5009.34-2022, Method 1	g/kg	≤0.9	0.349	Conforming
Lead (as Pb)	GB 5009.12-2023, Method 1	mg/kg	Not stated	Not detected (quantitation limit: 0.04)	Not assessed
Total arsenic (as As)	GB 5009.11-2024, Part I, Method 1	mg/kg	Not stated	Not detected (quantitation limit: 0.04)	Not assessed

The 93% entry is a separately identified supplier update, with no test method, report criterion or conformity decision assigned to it. The other eleven entries retain the historical report data.

For lead and total arsenic, 0.04 mg/kg is the quantitation limit, not a measured concentration. The report provides no item conformity decision for these tests.

Sample test results & COA reference.

Konjac gum sample

Purified konjac powder sample

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