
Our Training Courses

Groundtest Equipment regularly offers structured training courses aimed
primarily at providing the proper training required for operators of
nuclear density and moisture gauges.
Each year we hold from 3 to 6 of our one-day courses.
Upcoming Courses
Update: August 2011.
Our next courses are in Wellington and Christchurch, in August.
Wellington: Thursday 11th August.
Christchurch: Thursday 25th August.
Email or call us if you would like to be kept informed of planned courses in your area.
Venues:
We try to cover all main centers, Auckland, Wellington, Christchurch, in any two-year period, and add other cities such as Dunedin, Hamilton, Palmerston North, Taupo, Wanganui as demand requires.
Notification:
When we are planning a training course we mail
invitations to all our customers who might be interested.
Email or contact us
if you would like to ensure that you are notified when a course is to
be held.
Training Course Outline
The schedule below shows the contents of a typical one-day training course:
| Radiation Theory | What radiation is and how we detect it. Types of radiation. Sources of radiation |
| Radiation Safety | How to minimise danger. Biological effects of radiation. |
| Regulatory requirements. | Requirements of the Ministry of Health. Responsibility of gauge licensees. Transportation requirements. Leak testing Record keeping. Storage requirements Disposal requirements |
| Gauge Theory | How the moisture/density gauge detects and processes
information. Thin lift gauge operation. |
| Gauge Operation | What the buttons and readout really mean. |
| Practical use | Some practical issues for operators, e.g. plateau testing. |
| Practical demonstration | How to maintain gauge mechanicals. |
| Advanced Gauge Theory | Decay Curve Shift Composition error |
| Backscatter Analysis | Managing the special problems of analysing backscatter Top layer effect |
| Maintenance | Keeping your gauge in top working order Monitoring the condition of gauges |
| NZS 4407 | Making sense of the Standard |
| Calibration | What it is and how to save money |
| General Discussion |
Review of the test questions Using Troxlers and related equipment to achieve the requirements of the B2 Standard |
All participants at our training courses get their own copy of the course material to take away for later reference.
At the end of the training day there is a test.
Those that pass receive a certificate.
The certificate is accepted by the National Radiation Laboratory for people needing a license to operate a nuclear densometer. (Providing that the sections on radiation safety and regulations are included in the training, which they usually are.)
The certificate states that:
[Person's Name] has successfully completed the examination for the GROUNDTEST EQUIPMENT LTD NUCLEAR DENSITY GAUGE TRAINING COURSE.and:
The National Radiation Laboratory recognises that successful completion of this training course satisfies the training requirement specified in NRL document QM DAT/LIC/006H, Core of Knowledge: use of nuclear density meters.
Operators of all brands of nuclear gauges are welcome. The information will be of interest to civil engineers, roading, earthworks and construction contractors and everyone who is a current or potential owner or operator of density gauges.
Why we provide training courses.
Three main concerns create the demand for nuclear gauge operators to be well trained: they are concerns about…
Companies require professionalism in their testing methods.
This is increasingly important when contractors are responsible for materials performance. With large amounts of money involved in your construction and roading projects it is of paramount importance that the required compaction is achieved and measured when materials are laid down. Failures could result in litigation, so contractors need:
Concerns about the use of nuclear materials.
Legislation and regulations
The National Radiation Laboratory Code and Guide notes for nuclear densometers have been issued and operators need to be aware of the latest regulations.
We expect our training course to be the industry standard for nuclear gauge operators. The National Radiation Laboratory have reviewed the radiation safety training provided in the course to ensure it satisfies the regulations. (New Zealand regulations make it mandatory for operators to have attended an approved course on radiation safety before operating an NDM.)
Nuclear gauges: Main Page
Models
Troxler 3440 Features
Troxler 3440 Plus
Calibrations
Accessories
Manuals, Forms and
Detailed
Specifications
![]()
Click here to email us for
enquiries
or ordering.