HONG KONG, CHINA

Chow Sang Sang
Precious Metal Laboratory

Chow Sang Sang Precious Metal Laboratory (CSSPML), as a member of Chow Sang Sang Group, was established in 1984. Equipped with state-of-the-art advanced instruments and a long history in precious metal testing, CSSPML is a highly specialised laboratory to provide testing on various types of precious metal raw materials, semi-finished goods or jewellery articles.

We are the first commercial laboratory to obtain The Hong Kong Laboratory Accreditation Scheme (HOKLAS) accreditation in the area of precious metal testing in the early 90’s. The accreditation on gold fineness test was granted in November 1990, followed by platinum fineness test in 1995 and silver fineness test in 2014. Currently, we have six fineness tests that are accredited by HOKLAS. We are the only commercial laboratory in Hong Kong SAR has the capability to provide accredited testing services for gold, platinum and silver. With the substantial experience over the past 30 years, we commit to provide professional, impartial and accurate service to the jewellery industries and general public.  

Well-qualified scientists

We commit to provide precise testing services by regular participation in various proficiency testing programs provided by renowned international organisations such as American Society for Testing and Material (ASTM). We also conduct regular inter-laboratory comparisons with national laboratories to ensure that the testing quality of our laboratories retain at the highest level.

Advanced Equipment

Our Laboratories keep on introducing the latest advanced technology and equipment. We equipped with Potentiometric Titrator, Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) and Mass Spectrometer (ICP-MS) etc. Through the use of sophisticated equipments combined with our own capability, our experienced chemists enable to guarantee accurate test results.

FOSHAN

Chow Sang Sang Jewellery (Foshan) Co., Ltd. Shunde Precious Metal Laboratory

Chow Sang Sang Jewellery (Foshan) Co., Ltd. Shunde Precious Metal Laboratory (SDPML), as a member of Chow Sang Sang Group, located in Chow Sang Sang Production Centre in Shunde, was established in 2009. SDPML is a highly specialised laboratory to provide testing on various types of precious metal raw materials, semi-finished goods or jewellery articles.

Since 2014, SDPML has been accredited by China National Accreditation Service for Conformity Assessment (CNAS). The accreditation on gold and platinum fineness tests were granted, followed by X-Ray fluorescence spectrometry.