Chun Yu Works & Co.,
Quality Assurance Department, Testing Laboratory, Kaohsiung, 82063, Republic of China Taiwan, Kaohsiung, Taiwan
Visit website- Accredited standards
- 12
- A2LA certificate
- 1
- Site in our directory
- 1
What this lab is accredited for
Our reading of the A2LA scope: each standard once, with its official name where we have checked it.
Only this lab. Searches the 12 standard numbers and the 8 official names we hold. When no standard matches, it searches the method text of every scope line.
ASTM10
ASTM A563
ASTM B487Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
ASTM B499
ASTM B568
ASTM E18Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM E92Standard Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials
ASTM E384Standard Test Method for Microindentation Hardness of Materials
ASTM E709
ASTM F606Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
ASTM F2328Standard Test Method for Determining Decarburization and Carburization in Hardened and Tempered Threaded Steel Bolts, Screws, Studs, and Nuts
Other standards2
ISO 1502ISO general-purpose metric screw threads - Gauges and gauging
ISO 4762Hexagon socket head cap screws
ASTM B487; ASTM B568; ASTM B499; ASTM F606; ASTM A563
ASTM F2328; ASTM E18; ASTM E92; ASTM E384; ASTM E709
ISO 1502
ISO 4762; ISO 4762 1
Read from the A2LA scope document we downloaded on 2025-12-02. Register refreshed 2026-11-06.
Scope as published by A2LA
5 lines
ISO/IEC 17025
Active877.01
The scope document we hold says it was valid until 2026-04-30. That date has passed, so our copy may be out of date. We downloaded it from the A2LA register on 2025-12-02. Check the A2LA register for the current scope.
Accredited scope, certificate 877.01
| Line | Method | Matrix | Range |
|---|---|---|---|
| 1 | ASTM F2328; ASTM E18; ASTM E92; ASTM E384; ASTM E709 | Steel | - |
| 2 | ASTM B487; ASTM B568; ASTM B499; ASTM F606; ASTM A563 | - | - |
| 3 | ISO 1502 | - | 0 to 360 ° |
| 4 | ISO 4762; ISO 4762 1 | - | - |
| 5 | ISO/IEC 17025:2017; ISO-ILAC-IAF Communiqué dated April 2017; IEC 17025 | - | - |
Ranges are reproduced from the accredited scope document as published, and only where we found that range printed in the document for the line. Otherwise the cell reads “See scope document”. An absent range means the register did not state one. Line numbers are ours, for cross-reference; they follow the order of the scope document.
Labs with overlapping accredited scope in Taiwan
- Chu Hua Industrial Co.,Kaohsiung,A2LAShares 1 accredited test methodASTM E18
- Fastenal Company Laboratory - TaiwanGangshan District, Kaohsiung City 820, R.O.CA2LAShares 1 accredited materialSteel
- JingFong Fasteners Testing LaboratoryTainan CityA2LAShares 1 accredited test methodASTM E18
- QST INTERNATIONAL CO, LTD.Tainan CityA2LAShares 1 accredited test methodASTM E18
- SpecTainan, 70142A2LAShares 1 accredited test methodASTM E18
Accreditation data refreshed from the A2LA register on .
This page mirrors a public register. For a purchasing, audit or regulatory decision, confirm against the A2LA entry linked above.