Certified Reference Materials

Rocklabs Certified Reference Materials are recognised as being the most accurate and reliable reference materials globally and certified for Gold, Silver and Platinum Group Elements

Reference Materials Hero 1440x1440

Also known as laboratory standards, Reference Materials, are pulverised rock with known gold content suitable for analysis by fire assay, aqua regia dissolution or cyanide dissolution. They are low-cost aids used by laboratories and exploration companies for quality assurance and quality control management.

Rocklabs Reference Materials are recognised as being the most accurate and reliable reference materials globally and certified for Gold, Silver and Platinum Group Elements. The certificate, which includes details of the production and characterisation of the Reference Material, is issued with each consignment of sachets or jars sold.

Scott has a team of chemists, geologists and statisticians to advise on the use of the reference materials and the analysis of results. Typically, exploration and mine geologists can submit one sachet with each batch of samples they send to the laboratory for gold analysis, or one sachet with every 50 samples (for large batches). Our broad range of Au, Au-Ag and Pt-Pd-Au are available in 30, 50 and 100-gram sachets or 2.5 kg jars.

A significant amount of work goes into certifying the homogeneity, accuracy and precision of the assigned analyte concentration. An international proficiency test (round robin) is run for each manufacturing cycle, typically involving, 50-60 well known mining laboratories from around the world. The final values are assigned by an independent Statistician.

To find a specific reference material certificate, please visit the global website.

Reference Materials Certified for Pt, Pd and Au

Material

Assigned Values & 95% Confidence Intervals

Packaging

Stock Level

Platinum (ppm)

Palladium (ppm)

Gold (ppm)

(2.5kg jar)

PK3

4.291 (+/- 0.046)

6.028 (+/- 0.094)

5.038 (+/- 0.051)

30g & 50g sachets, 2.5kg jars

High

PG04

0.903 (+/- 0.007)

1.196 (+/- 0.014)

1.004 (+/- 0.008)

30g & 50g sachets, 2.5kg jars

High

PD05

0.430 (+/- 0.005)

0.596 (+/- 0.006)

0.519 (+/- 0.004)

30g & 50g sachets, 2.5kg jars

Low

PD06

0.424(+/- 0.004)

0.590 (+/- 0.008)

0.507 (+/- 0.004)

30g & 50g sachets, 2.5kg jars

High

Reference Materials Certified for Au and Ag

Material

Matrix Type

Assigned Values & 95% Confidence Intervals

Packaging

Stock Level

Gold (ppm)

Silver (ppm)

(2.5kg jar)

AgAuBlank

Oxide

<0.002

<0.2

50g sachets only

Please enquire

SL105

Sulphide (3.2% S)

5.050 (+/- 0.035)

30.4 (+/- 0.5)

30g & 50g sachets, 2.5kg jars

High

SN104

Sulphide (3.3% S)

9.182 (+/- 0.057)

46.7 (+/- 0.6)

30g & 50g sachets, 2.5kg jars

Please enquire

SN118Sulphide (3.3% S)8.917 (+/- 0.055)49.9 (+/- 0.9)30g & 50g sachets, 2.5kg jarsHigh

SP89

Sulphide (3.5% S)

18.46 (+/- 0.08)

84.4 (+/- 1.1)

30g & 50g sachets, 2.5kg jars

Low

OxQ132

Oxide

34.69 (+/- 0.22)

128.5 (+/- 1.9)

50g sachets only

Low

OxQ153

Oxide

34.78 (+/- 0.23)

128.0 (+/- 1.1)

30g & 50g sachets, 2.5kg jars

High

SQ88

Sulphide (10% S)

39.72 (+/- 0.28)

160.8 (+/- 2.1)

30g & 50g sachets, 2.5kg jars

Medium

Reference Materials Certified for Au

Material

Matrix Type

Gold (ppm) assigned values
& 95% Confidence Intervals

Packaging

Stock Level
(2.5kg jar)

Au Blank111

Oxide

<0.002

50g sachets only

High

OxA131Oxide0.077 (+/- 0.002)50g sachets onlyPlease enquire

OxA147

Oxide

0.082 (+/- 0.002)

30g & 50g sachets, 2.5kg jars

Please enquire

OxB130

Oxide

0.125 (+/- 0.002)

30g & 50g sachets, 2.5kg jars

Medium

OxB146

Oxide

0.132 (+/- 0.002)

30g & 50g sachets, 2.5kg jars

Medium

OxC152

Oxide

0.216 (+/- 0.002)

30g & 50g sachets, 2.5kg jars

Low

OxC168

Oxide

0.213 (+/- 0.002)

30g & 50g sachets, 2.5kg jars

High

SC110

Sulphide (2.0% S)

0.235 (+/- 0.003)

30g & 50g sachets, 2.5kg jars

Please enquire

OxD151

Oxide

0.430 (+/- 0.003)

30g & 50g sachets, 2.5kg jars

Low

OxD157

Oxide

0.399 (+/- 0.004)

30g & 50g sachets, 2.5kg jars

Low

OxD167

Oxide

0.462 (+/- 0.004)

30g & 50g sachets, 2.5kg jars

Medium

OxD169

Oxide

0.456 (+/- 0.004)

30g & 50g sachets, 2.5kg jars

Low

SE114

Sulphide (2.3% S)

0.634 (+/- 0.005)

30g & 50g sachets, 2.5kg jars

Medium

OxE150

Oxide

0.658 (+/- 0.005)

30g & 50g sachets, 2.5kg jars

Low

OxE156

Oxide

0.658 (+/- 0.006)

30g & 50g sachets, 2.5kg jars

Low

OxE166

Oxide

0.652 (+/- 0.005)

30g & 50g sachets, 2.5kg jars

High

OxF162

Oxide

0.832 (+/- 0.008)

30g & 50g sachets only

Medium

OxF165

Oxide

0.857 (+/- 0.005)

30g & 50g sachets, 2.5kg jars

Low

SF100

Sulphide (2.5% S)

0.860 (+/- 0.005)

30g & 50g sachets, 2.5kg jars

High

OxG140

Oxide

1.019 (+/- 0.007)

30g & 50g sachets, 2.5kg jars

Please enquire

OxG141

Oxide

0.930 (+/- 0.005)

30g & 50g sachets, 2.5kg jars

Low

SG99

Sulphide (2.6% S)

1.041 (+/- 0.006)

30g & 50g sachets only

Low

SG102

Sulphide (2.6% S)

0.997 (+/- 0.008)

30g & 50g sachets, 2.5kg jars

Please enquire

SG113

Sulphide (2.6% S)

1.024 (+/- 0.006)

30g & 50g sachets, 2.5kg jars

High

OxH149

Oxide

1.279 (+/- 0.011)

30g

Low

OxH163

Oxide

1.313 (+/- 0.008)

30g & 50g sachets, 2.5kg jars

High

SH82

Sulphide (2.8% S)

1.333 (+/- 0.007)

30g & 50g sachets, 2.5kg jars

Low

SH98

Sulphide (2.7% S)

1.400 (+/- 0.008)

30g & 50g sachets, 2.5kg jars

High

Oxi164

Oxide

1.790 (+/- 0.011)

30g & 50g sachets, 2.5kg jars

High

Si81

Sulphide (3.0% S)

1.790 (+/- 0.008)

30g & 50g sachets, 2.5kg jars

High

OxJ137

Oxide

2.416 (+/- 0.020)

30g sachets only

Low

OxJ161

Oxide

2.501 (+/- 0.016)

30g & 50g sachets, 2.5kg jars

Please enquire

SJ111

Sulphide (3.0% S)

2.812 (+/- 0.021)

30g & 50g sachets, 2.5kg jars

Please enquire

HiSilK4

Sulphide (1.0% S)

3.463 (+/- 0.026)

30g & 50g sachets, 2.5kg jars

Please enquire

Hi Sil K6Sulphide (1.0% S)3.446 (+/- 0.033)30g & 50g sachets, 2.5kg jarsHigh

SK109

Sulphide (3.0% S)

4.102 (+/- 0.030)

30g & 50g sachets only

Please enquire

SK120Sulphide (3.0% S)4.075 (+/- 0.03)30g & 50g sachets, 2.5kg jarsHigh

OxK160

Oxide

3.674 (+/- 0.024)

30g & 50g sachets, 2.5kg jars

High

SL76

Sulphide (3.0% S)

5.960 (+/- 0.052)

30g & 50g sachets only

Low

SL108

Sulphide (3.0% S)

5.744 (+/- 0.042)

50g sachets only

Please enquire

SL119Sulphide (3.2% S)5.876 (+/- 0.036)30g & 50g sachets, 2.5kg jarsHigh

OxL159

Oxide

5.849 (+/- 0.042)

30g & 50g sachets, 2.5kg jars

High

SN103

Sulphide (3.3% S)

8.520 (+/- 0.047)

30g & 50g sachets only

Please enquire

SN106

Sulphide (3.3% S)

8.461 (+/- 0.047)

30g & 50g sachets, 2.5kg jars

Medium

OxN155

Oxide

7.776 (+/- 0.050)

30g & 50g sachets, 2.5kg jars

Low

OxN173Oxide7.668 (+/- 0.046)30g & 50g sachets, 2.5kg jarsHigh

HiSilP3

Sulphide (2.0% S)

12.24 (+/- 0.071)

30g & 50g sachets, 2.5kg jars

Low

HiSilP5Sulphide (2.0% S)12.05 (+/- 0.064)30g & 50g sachets, 2.5kg jarsHigh

OxP133

Oxide

15.14 (+/- 0.08)

50g sachets only

Please enquire

OxP154

Oxide

15.26 (+/- 0.084)

30g & 50g sachets, 2.5kg jars

Please enquire

OxP158

Oxide

15.150 (+/- 0.106)

50g sachets only

Low

OxP172Oxide15.057 (+/- 0.115)30g & 50g sachets, 2.5kg jarsHigh

SP73

Sulphide (3.5% S)

18.17 (+/- 0.12)

30g & 50g sachets, 2.5kg jars

Medium

OxQ115

Oxide

25.22 (+/- 0.18)

50g sachets only

Please enquire

Ox Q170Oxide24.939 (+/- 0.182)30g & 50g sachets, 2.5kg jarsHigh

SQ87

Sulphide (3.5% S)

30.87 (+/- 0.21)

30g & 50g sachets, 2.5kg jars

High


Please note that "30g" and "50g" are nominal values only. Approximately 2 grams extra are included in each sachet so that it is easier to scoop out the nominal weight without having to scrape out the last traces of powder in the bottom of the sachet.

The sachets are available with either Labcheck or Geocheck labels. Labcheck labels have the name of the Reference Material (e.g. WG2) clearly stated on the label. Geocheck labels do not have the name of the Reference Material stated on the label but do have a unique number for ready identification by the purchaser. Jars are packed in cartons containing 6 jars (i.e. 15 kg) but the minimum order is one jar.

Customised Reference Materials

Do you have mine material or an exploration target that has an unusual matrix? We may be able to produce a Reference Material that has a similar mineral composition to your material. We would make this from materials known to be stable and from screened minerals that contain finely divided gold.

The matrix-matched mineral components will be blended together and packaged in sachets or jars (your preference) and a formal homogeneity test carried out. Samples can be sent out for consensus testing and a formal certificate supplied if required. To obtain a quote, contact us directly or your nearest Rocklabs agent.

Telarc Certfications 1440x880
Rocklabs Certification

Rocklabs products are manufactured under management systems that have been certified by Telarc to the following standards:

  • ISO 9001:2015 Quality Management System
  • ISO 14001:2015 Environmental Management System
  • ISO 45001:2018 Occupational Health and Safety Management System

Certified Reference Material Enquiry

Personal data provided in this form will be processed by Scott to handle your query / request.