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Taiwan

Linkwell Testing Laboratory

No.66 Lane 521, Zhongshan Rd., Alian Dist., Kaohsiung, Republic of China Taiwan, Kaohsiung, Taiwan

A2LA|4520.01ISO/IEC 17025Register refreshed 2026-09-25

Certificates

1

Scope items

3

Standards

16

Locations

1

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886-7-6321616

claire_lin@linkwell.com.tw

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Register record

A2LARefreshed 2026-09-25: 4520.01Active

Accredited standards

16

Our reading of the A2LA scope: each standard once, with its official name where we have checked it. Click a standard to see the scope line it comes from, word for word.

ISO

ISO 898-1Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs with specified property classes - Coarse thread and fine pitch thread

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

ISO 1502ISO general-purpose metric screw threads - Gauges and gauging

As written on the certificate · Line 2 (A2LA 4520.01)

JIS B1071; ASME B18.6.3; ASME B1.2; ASME B1.16M; ISO 1502; CNS 4174; CNS 4175; ISO 10664; DIN 912(1993); DIN 916(1980); DIN EN ISO 4762; DIN 4029

ISO 2702Fasteners - Heat treated tapping screws - Mechanical and physical properties

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

ISO 4762Hexagon socket head cap screws

As written on the certificate · Line 2 (A2LA 4520.01)

JIS B1071; ASME B18.6.3; ASME B1.2; ASME B1.16M; ISO 1502; CNS 4174; CNS 4175; ISO 10664; DIN 912(1993); DIN 916(1980); DIN EN ISO 4762; DIN 4029

ISO 6157-1Fasteners - Surface discontinuities - Part 1: Bolts, screws and studs for general requirements

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

ISO 7085Mechanical and performance requirements of case hardened and tempered metric thread rolling screws

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

ISO 10664Hexalobular internal driving feature for bolts and screws

As written on the certificate · Line 2 (A2LA 4520.01)

JIS B1071; ASME B18.6.3; ASME B1.2; ASME B1.16M; ISO 1502; CNS 4174; CNS 4175; ISO 10664; DIN 912(1993); DIN 916(1980); DIN EN ISO 4762; DIN 4029

ISO 10666Drilling screws with tapping screw thread - Mechanical and functional properties

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

ISO 15330Fasteners - Preloading test for the detection of hydrogen embrittlement - Parallel bearing surface method

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

ASTM

ASTM B117Standard Practice for Operating Salt Spray (Fog) Apparatus

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

ASTM B568Name not checked yet

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

ASTM E18Standard Test Methods for Rockwell Hardness of Metallic Materials

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

ASTM E384Standard Test Method for Microindentation Hardness of Materials

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

ASTM F788Name not checked yet

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

ASTM F2328Standard Test Method for Determining Decarburization and Carburization in Hardened and Tempered Threaded Steel Bolts, Screws, Studs, and Nuts

As written on the certificate · Line 1 (A2LA 4520.01)

ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117

Other standards

ASME B18.6.3Machine Screws, Tapping Screws, and Metallic Drive Screws (Inch Series)

As written on the certificate · Line 2 (A2LA 4520.01)

JIS B1071; ASME B18.6.3; ASME B1.2; ASME B1.16M; ISO 1502; CNS 4174; CNS 4175; ISO 10664; DIN 912(1993); DIN 916(1980); DIN EN ISO 4762; DIN 4029

Scope as published by A2LA

3 lines

A2LA

ISO/IEC 17025

Active

4520.01

The scope document we hold says it is valid until 2028-01-31.

Accredited scope, certificate 4520.01

Line	Discipline	Method	Matrix	Range
1	mechanical	ASTM E18, F606/F606M; ISO 898-1, 898-2; ASTM E384; DIN 7504, DIN 7500, DIN 267-12; SAE J933, SAE J78, SAE J81; ASME B18.6.3; ISO 2702; SAE J78, J81, J423, J933, J1237; ISO 2702, 7085(1999); DIN 7500-1; ASME B18.6.3; FIP1000; SAE J78, J81, J1237, J933; ISO 7085(1999), 898-7, 2702; DIN 7500-1, 7504(1995); DIN EN ISO 10666; ASME B18.6.3; FIP1000; SAE J81, J933; ASME B18.6.3; FIP1000; SAE J81, J1237, J933; DIN 7500-1; ISO 7085(1999), 2702; SAE J81, SAE J1237; ASME B18.6.3; F.I.P. 1000; ISO 15330; ASTM F2328/F2328M; ISO 898-1, 2702; SAE J933; ASTM F788, F812; ISO 6157-1, 6157-2; ASTM B568; ASTM B117	metal fasteners and parts	1.41 to 36 μm
2	dimensional	JIS B1071; ASME B18.6.3; ASME B1.2; ASME B1.16M; ISO 1502; CNS 4174; CNS 4175; ISO 10664; DIN 912(1993); DIN 916(1980); DIN EN ISO 4762; DIN 4029	-	to 360 °
3	mechanical	For the tests to which this accreditation applies, please refer to the laboratory’s Mechanical Scope of Accreditation. Accredited Laboratory A2LA has accredited LINKWELL TESTING LABORATORY Kaohsiung, R.O.C. Taiwan for technical competence in the field of Mechanical Testing This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017). Presented this 13th day of October 2025. __ _____________________ Mr. Trace McInturff, Vice President, Accreditation Services For the Accreditation Council Certificate Number 4520.01 Valid to January 31, 2028

Ranges are reproduced from the accredited scope document as published. 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.

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Accreditation data refreshed from the A2LA register on 2026-09-25.

This page mirrors a public register. For a purchasing, audit or regulatory decision, confirm against the A2LA entry linked above.