紅磡收件中心於2024年5月20日至29日進行翻新工程,期間將暫停收件服務,2024年5月30日回復正常。

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.

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Precious Metal Fineness Tests

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X-Ray Fluorescence
Spectrometry

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Diamond
Screening Service

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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)

Diamond Screening Service

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.