Submission of samples for radiocarbon analysis An electronic version of this form is available from http://www.gla.ac.uk/nercrcl
NERC RADIOCARBON FACILITY (ENVIRONMENT)
Section A. SUBMITTER INFORMATION (if necessary, copy and use additional worksheets)
Name Possible contamination
Address Purpose of C age determinations
Samples collection method Publications and previous C measurements on or relating to samples
Treatment and storage
Section B. HEALTH & SAFETY DECLARATION AND DEFRA LICENCE STATEMENT
I CONFIRM THAT THE SAMPLES SUBMITTED FOR ANALYSIS WILL NOT POSE ANY KNOWN OR SUSPECTED HAZARD FOR RCL STAFF AND SIGNATURE: DATE:
THAT THEY CONFORM WITH THE SAMPLES SPECIFIED IN THE AWARD MADE BY THE RCL STEERING COMMITTEE
DO THE SAMPLES REQUIRE A DEFRA LICENCE? (delete as applicable) Y/N
Section C. SAMPLES INFORMATION
Allocation Collection Latitude Longitude Stratigraphic Estimated
number Unique sample identifier* Sample collector date Location N/S E/W Nature of sample In situ environment position (cm) Age (BP)
* Sample identifier should be identical to the label on the submitted sample. If from a stratigraphical sequence, include depth in sample identifier.
Please email the completed form to: firstname.lastname@example.org and enclose a printed AND SIGNED copy when submitting samples
NERC RADIOCARBON FACILITY (ENVIRONMENT) Guidance on sample submission
Guidance on sample size and containment is general. For specific queries please contact the NRCF (Environment) directly,
quoting your allocation no.
A minimum of 1 mg of carbon is required, although to optimise precision >3-5 mg of carbon is preferred.
Larger samples (e.g. of atleast 1 g of carbon) that were formerly analysed using the Radiometric method
can still be submitted, but will be analysed by AMS
NB - Sample size refers to weight of carbon and therefore total amount of material required depends on %carbon and moisture
content of sample.
AMS Ideally, samples should be contained in small glass vials which have been previously cleaned and rinsed
with distilled water. Ensure adequate protection is provided for samples submitted by post, but please avoid
using polystyrene packing. NB the NRCF (Environment) can supply suitable containers for submission of
foraminifera samples - please contact the lab if these are required.
Large samples These may be submitted in small cleaned vials, or larger samples may be wrapped in aluminium foil or
(e.g. >1 g carbon) contained in sealed plastic bags.
Sample description record
The information requested is essential to ensure unambiguous identification of samples, and to assist in determining the
appropriate method for sample processing. Completion of this record sheet should, therefore, be regarded as integral to the
overall dating effort. Each section must be completed in full before the sample(s) can be formally accepted for analysis. Please
complete the electronic form, email a copy to the NRCF (Environment), and enclose a printed copy with the submitted samples.
An electronic version of the sample description sheet can be downloaded from http://www.gla.ac.uk/nercrcl/
The following notes are designed to clarify the exact nature of the information required:
SECTION A. Was the sample collected by coring, from an existing or freshly exposed profile, or in the course of
excavation? If none of these, give details.
Was the sample treated in any way after collection, viz., washed, sieved, oven dried, etc.? Give details of
sample containment and storage conditions since collection.
Record any possible sources of non-contemporaneous carbon in the in situ sample, e.g. rootlet penetration,
percolation of water from adjacent strata, exposure to weathering or fungal growth, etc. Does the sample
derive from a limestone or hard water region?
Is there any possibility of foreign material having been introduced into the sample either during recovery or
its subsequent storage, e.g. brush hairs, grease or paint from tools, wood shavings, paper or plastic
fragments from packaging, fungal growth? If any form of chemical preservation has been applied it is
imperative that full details of this treatment are provided.
Give a brief account of the problem which it is hoped that C-14 analysis will answer. In particular, is the
sample associated with a specific climatic or cultural phase or with other chronological indicators such as
Dates should be referenced with their laboratory code number and where appropriate details of their
SECTION B. If the samples may pose a hazard to NRCF (Environment) staff the lab must be informed before sample
submission, otherwise please sign the Health & Safety declaration. Note that the NRCF (Environment)
cannot process samples stabilised with Mercuric Chloride.
SECTION C. Sample identifiers should be identical to the labels on the submitted samples. If from a stratigraphical
sequence, include depth in the sample identifier.
Give geographical name of sampling location, e.g. Farm Wood Quarry, Chelford, Cheshire. If site is a
significant distance from nearest named landmark this fact should be noted, e.g. 2.5 km NW of Farm Wood
Give popular name plus, if at all possible, the scientific nomenclature e.g. waterlogged wood (Quercus ),
marine shell (Arctica islandica ).
Record geological environment and/or lithology from which the sample was recovered, e.g. bog, glacial till,
solifluction deposit, freshwater or marine sediment, etc.
If buried, record the depth increment from which the sample was recovered relative to the present land
surface or mud/water interface in the case of aquatic sediments.