Chow Sang Sang Precious Metal Laboratory and Shunde Precious Metal Laboratory understand the safety and fineness of materials are crucial to the jewellery industries and individual parties, so we engaged in providing quality and comprehensive testing services.

Our professional services cover international and China national standard methods. We can provide testing for precious metal raw materials, semi-finished products and jewellery articles of gold, platinum and silver in either destructive or non-destructive ways to fit the customers needs.

Our laboratories are fully secured with high security systems, you can enjoy our high quality testing services without concerned about the security issue.

Icon_N004Icon_M004-1

Precious Metal Fineness Tests

Icon_N008Icon_M008-1

X-Ray Fluorescence
Spectrometry

Icon_N009Icon_M009-1

Type II Diamond
Screening Service

Icon_N006Icon_M006-1

Other Tests

Precious Metal Fineness Tests

Gold & Gold Alloys

Fineness Test

HOKLAS accredited test (CSSPML)

CNAS accredited test (SDPML)

Platinum & Platinum Alloys
Fineness Test

HOKLAS accredited test (CSSPML)

CNAS accredited test (SDPML)

Silver and Silver Alloys
Fineness Test

HOKLAS accredited test (CSSPML)

High Purity Gold &
High Purity Platinum Fineness Test

HOKLAS accredited test (CSSPML)

X-Ray Fluorescence Spectrometry

X-Ray Fluorescence
Spectrometry

CNAS accredited test (SDPML)

Type II Diamond Screening Service

Type II Diamond Screening Service

Other Tests

Testing for Toxic Elements

(Antimony, Arsenic, Barium, Cadmium,

Chromium, Lead, Mercury and Selenium)

Screening Test
for Nickel Release

Tensile Strength Test

Vickers Hardness Test

Remarks: Shunde Precious Metal Laboratory will only release inspection or test results for the purpose of research and internal quality control of the company and stated for internal use only without China Metrology Accreditation (CMA) authentication mark.

Type II
Diamond Screening Service

Remarks: Shunde Precious Metal Laboratory will only release inspection or test results for the purpose of research and internal quality control of the company and stated for internal use only without China Metrology Accreditation (CMA) authentication mark.