Determination of mass for weights according to OIML's system in accuracy class E1, E2, F1, F2, M1 and M2

The national laboratories have are responsible for maintaining the national reference standards for each measurement quantity and spreading metrological competence and traceability to industry and society at large. The national reference standards are the highest level of traceability in Sweden.

Weight calibration ensures traceable calibration in everything from medical technology to food and environmental management. We offer calibration with history and stability monitoring for all sizes of weights from 1 mg to 5000 kg.

We help you to secure your measurements / checks by assessing that your reference weights fulfills the required class and stability.

We can also adjust weights to meet tolerance requirements in OIML class F2, M1 and M2.

Calibration and tolerance check according to OIML R111

Results are reported in a digital calibration certificate in Swedish or English which states that the calibration was performed at a national laboratory.

Customer website RISE Calibration is our customer website on the Internet that gives you full control over your measuring instruments. Log in to your own page and see your metering register, calibration status, calibration history and calibration certificate for each measuring instrument.

5 to 10 working days depending on accuracy class

The National Laboratory for Length and Dimensional Metrology offers calibration of both artefacts and instrument. Some examples are stock squares, try squares, carpenter’s squares, squareness standards made of diabase or steel, universal protractors, protractors, digital protractors, water levels and inclinometers.

The national laboratories are responsible for maintaining the national reference standards for each measurement quantity and spreading metrological competence and traceability to industry and society at large. The national reference standards are the highest level of traceability in Sweden.

A calibration performed at a national laboratory fulfils all typical traceability and accreditation requirements that commonly exist in industry and society at large. 

Calibration of squareness standards is performed up to 500 mm. The calibration is performed against a reference standard on a surface plate. Indicating instruments such as universal protractors, protractors, digital protractors and water levels are calibrated using a sine bar and gauge blocks, alternatively with an indexing table.  Accurate inclinometers from 0,001 mm/m are calibrated on a sine bar of diabase with a laser interferometer as reference.

The calibration results are reported in a digital calibration certificate in Swedish or English which states that the calibration was performed at a national laboratory.

Price at request.

The National Laboratory for Length and Dimensional Metrology offers calibration of varying types of setting masters, for example rings, threads and gauges.

The national laboratories are responsible for maintaining the national reference standards for each measurement quantity and spreading metrological competence and traceability to industry and society at large. The national reference standards are the highest level of traceability in Sweden.

A calibration performed at a national laboratory fulfils all typical traceability and accreditation requirements that commonly exist in industry and society at large. 

The National Laboratory for Length and Dimensional Metrology calibrates several different types of standards for accurate adjustments of measuring machines. Common standards are for example setting rings (internal diameter), reference gauges (external diameter) and pin gauges, as well as tolerance gauges for control of holes, axles or threads. Additionally, we calibrate customized masters for specific purposes.

Most of these objects are calibrated in a single axis measuring machine with two-point measurement. The contact surfaces of the measurement tips are accurately defined with regards to size and form, which is important for the reproducibility.

The calibration results are reported in a digital calibration certificate in Swedish or English which states that the calibration was performed at a national laboratory.

Price at request.

The National Laboratory for Length and Dimensional Metrology offers calibration of customised references.

The national laboratories are responsible for maintaining the national reference standards for each measurement quantity and spreading metrological competence and traceability to industry and society at large. The national reference standards are the highest level of traceability in Sweden.

A calibration performed at a national laboratory fulfils all typical traceability and accreditation requirements that commonly exist in industry and society at large. 

Some industrial measurements require custom made references to enable measurements. The national laboratory offers calibration of such references when they can be measured with our measurement equipment.

Since each reference is unique, a customised measurement method is developed for each object to fulfil your calibration needs. Please contact us for more information.

The calibration results are reported in a digital calibration certificate in Swedish or English which states that the calibration was performed at a national laboratory.

When becoming a client you will also get access to our customer website for calibration, where you may also place orders. 

Customer website for calibration

Price at request.

RISE is a Notified Body (NB) for Europe and a Telecommunication Certification Body (TCB) for the USA.

For the EU, manufacturers can obtain an EC type examination Certificate as proof of an independent review of their technical documentation for their CE marking of the product.

In the United States, the Federal Communications Commission (FCC) defines the regulations for placing electrical products on the market. Here, the requirements are not in standards issued by standardization organizations, but instead they are enrolled in the CFR (Code of Federal Regulations). The part that deals with EMC and radio requirements is called Title 47 Telecommunication.

The FCC has two approval procedures, Certification and Suppliers Declaration of Conformity (SDoC). For most types of radio transmitters, Certification applies with type approval via a Telecommunication Certification Body (TCB). Certification requires that a test report is issued by an FCC approved laboratory (FCC recognized laboratory). This means that accreditation according to IEC 17025 is not sufficient but is a prerequisite for being recognized.

For products that do not contain a radio transmitter, SDoC applies except for “exempted devices”. FCC only accepts test reports where the measurements have been performed according to FCC recognized measurement methods (ANSI standards) with US mains voltage (ex 120VAC / 60Hz). RISE is accredited and FCC recognized for the measurements required as a basis for SDoC.

In conjunction with measurements for the United States, the requirements for Canada can also be covered, since in most cases the same measurement methods also apply in Canada. RISE is accredited and "recognized" for several Canadian standards. The authority in Canada that handles the requirements for EMC and radio is called Innovation, Science and Economic Development Canada (ISED).

RISE is, as the only organization in Sweden, appointed by the FCC to a TCB. This means that we can perform the certification required by the FCC for radio transmitters and obtain the grant of equipment authorization required to place the product on the US market.

RISE can also help with equivalent certification for Canada.

Notified Body - The manufacturer receives an independent review showing that the technical documentation of the product meets the essential requirements of the relevant Directive.

TCB - Manufacturer obtains a product certification, which is a prerequisite for placing the product on the market in the US.

Review of documentation

For Notified Body assignments, an EC Type examination Certificate is obtained

For TCB assignments, a Grant of Equipment Authorization is obtained

According to offer

Price on request for quotation

According to offer

ISO/IEC 17065

The National Laboratory for Length and Dimensional Metrology offers calibration high precision length gauges with a resolution down to 0,01 micrometres.

The national laboratories are responsible for maintaining the national reference standards for each measurement quantity and spreading metrological competence and traceability to industry and society at large. The national reference standards are the highest level of traceability in Sweden.

A calibration performed at a national laboratory fulfils all typical traceability and accreditation requirements that commonly exist in industry and society at large. 

We calibrate many different types of length gauges, for example linear gauges, linear potentiometers, indicators, dial test indicators and string potentiometers, where the resolution could be as low as 0,01 µm. The length gauges can be with or without measuring force and showing the result in mm (µm) or voltage (mV). We also perform calibration of gauges with lower measuring accuracy and/or longer measuring range up to 2 meters for example string/wire linear potentiometers.

The calibration results are reported in a digital calibration certificate in Swedish or English which states that the calibration was performed at a national laboratory.

Price on request.

Please check that accessories such as indicator units, cables and measuring tips are sent in together with the device at the time of calibration.

The National Laboratory for Length and Dimensional Metrology offers calibration of laser rangefinders.

The national laboratories are responsible for maintaining the national reference standards for each measurement quantity and spreading metrological competence and traceability to industry and society at large. The national reference standards are the highest level of traceability in Sweden.

A calibration performed at a national laboratory fulfils all typical traceability and accreditation requirements that commonly exist in industry and society at large. 

Laser rangefinders are one-dimensional length measuring instruments with a measuring range ranging from a few centimetres, to several tens of metres. The measurement principle for most laser rangefinders is the time-of-flight method. In short, the time it takes for a pulse of light to return to the rangefinder is used to calculate the distance.

We offer calibration of laser rangefinders with varying resolution and with a range of up to 50 m. If necessary, we can also develop customized solutions to suit your needs.

The calibration results are reported in a digital calibration certificate in Swedish or English which states that the calibration was performed at a national laboratory.

Price at request.

The National Laboratory for Length and Dimensional Metrology offers calibration of measuring tapes, dipping tapes and PI tapes.

The National Laboratories are responsible for maintaining the national reference standards for each measurement quantity and spreading metrological competence and traceability to industry and society at large. The national reference standards are the highest level of traceability in Sweden.

A calibration performed at a national laboratory fulfils all typical traceability and accreditation requirements that commonly exist in industry and society at large. 

We perform calibration of most kinds of measuring tapes on the market. Our routine calibration at 20 °C includes ten measuring points evenly distributed over the tape. Off course we can calibrate other points on customer requests. We can calibrate each dm up to 5 m and after that every half meter. We calibrate each meter on dipping tapes and ullage level gauges as standard.

Measuring tapes can be made of different materials for example steel and nylon and with different tension forces, normally 50 N. The graduation can start 100 mm in (Type A), from the start of the hook (Type B) or from the hook (Type C). It’s very important that measuring tape with tension force have the same force at use as during the calibration, otherwise the corrections won’t be correct. If the measuring tape is used at other temperature or measuring force than marked at the tape, the length measurements should be corrected.

PI tapes are calibrated due to a different method and other measuring points than usual measuring tapes. This will be described in the certificate.

Measuring tapes are made in different tolerance classes, mainly due to SS 641112, SS 641113 and STAFS 2016:9.

The tolerance grade specifies the maximum allowed deviation on the specified type of measuring tape, but doesn’t say anything about the individual tape. The only way to find out the deviation on a specific tape is by calibration. The calibration is performed without any consideration regarding tolerance class.

The calibration results are reported in a digital calibration certificate in Swedish or English which states that the calibration was performed at a national laboratory.

Price at request.

BS 6807:2006 - Method of test for assessment of ignitability of mattresses, upholstered bed bases with flaming types of primary and secondary sources of ignition.

The standard is used to assess the ignitability of mattresses, upholstered divans and upholstered bed bases, when subjected to different ignition sources of gas flames and small wooden cribs. The thermal output of the ignition sources shall approximate that of a burning match up to four sheets of a full-size newspaper.

The filling used in domestic mattresses, mattress pads, divans and bed bases (low hazard) are also subjected to Government Regulation the “Furniture and Furnishings (Fire) (Safety) Regulations 1988” with amendments.

In the United Kingdom, all non-domestic mattresses, mattress pads, divans and bed bases, are required to be classified by the hazard categories - low, medium, high and very high risk. Depending on the use of the mattress, mattress pad, divan or bed base, different test standards are referred to by BS 7177.

The tests are performed in a test cabinet with a calibrated air flow. The test specimen is located on top of a steel rig. The ignition sources are located on top of the mattress and on a specified distance below the mattress (the distance varies with the ignition source). There are six different ignition sources, numbered 2-7. ignition sources 2-3 are gas flames and ignition sources 4-7 are wooden cribs (the higher number the larger gas flame/crib).

During the gas flame tests the test assembly is not allowed to smoulder for more than 15 minutes from the start of the test (60 minutes for wooden cribs). The test assembly is not allowed to show evidence of charring more than 100 mm in any horizontal direction from the nearest part of the original position of the ignition source. The gas flames are removed after 40 seconds (ignition source 2) or 70 seconds (ignition source 3). No flaming is allowed to continue for more than 120 seconds after removal of the burner tube. No flaming is allowed to continue for more than 10 minutes after start of the test with ignition source 4-5 (13 minutes with ignition source 6-7).

A test report, in Swedish or English, is delivered with the test results after testing.

Material needed for testing:

 The tests can be performed either in full scale or in small scale.

• Full scale test: 1 mattress with scale 1:1.
• Small scale test:3 test specimens, rectangular in shape and of minimum size 450 mm x 350 mm x nominal thickness of the finished mattress. The type of proposed edge finishing system shall be incorporated, e.g. plain, piped or tape edged. Representative tension shall be maintained in the cover. The proposed mattress finish shall be represented in the test specimen, e.g. tufted or quilted.

Related standards:

• BS 7177

The National Laboratory for Length and Dimensional Metrology offers interferometric and mechanical calibration of gauge blocks.

The National Laboratories are responsible for maintaining the national reference standards for each measurement quantity and spreading metrological competence and traceability to industry and society at large. The national reference standards are the highest level of traceability in Sweden.

A calibration performed at a National Laboratory fulfils all typical traceability and accreditation requirements that commonly exist in industry and society at large. 

Gauge blocks are the universal standards that makes it possible to transfer the definition of the metre to a solid standard. We offer calibration of gauge blocks from 0,1 mm -1000 mm, made by steel, tungsten carbide or ceramic materials within three different uncertainty levels. Interferometrical calibration of gauge blocks is our most accurate measuring method, and a direct application of the definition of the central length of a gauge block. The gauge block is wrung to the plane surface of an auxiliary plate and the central length is defined as the perpendicular distance between the surface of the platen and the middle point of the gauge block's top surface. To determine this distance we are using several, different wave lengths of light.

Interferometrical measurements (method “A”) are used when the best accuracy is needed. One typical application is gauge blocks used as standards for mechanical calibration of other gauge blocks. Interferometrical calibration requires very high-quality gauge blocks. The gauge blocks should fulfil grade K according to EN ISO 3650 and have burr free measuring faces.

When the accuracy needed is slightly lower, the gauge block can be measured by mechanical comparison. This method is based on comparison between a standard gauge block and a customer gauge block. We offer two accuracy levels, methods B and C. We are able to calibrate the central length and the length at the four corners for all metric standard lengths from 0,1- 500 mm. That makes it possible to determine the variation in length. For gauge blocks above 500 mm to 1000 mm only the central length is measured.

Method B is intended mainly for gauge blocks used in a laboratory, where high accuracy is needed. Mostly gauge blocks that fulfil Grade 0 or 1, according to EN ISO 3650.  

Method C is mostly used for gauge blocks used in an industrial environment, for example to calibrate handheld measuring tools. Mostly gauge blocks that fulfil Grade 1 or 2, according to EN ISO 3650.

The calibration results are reported in a digital calibration certificate in Swedish or English which states that the calibration was performed at a National Laboratory.

Price on request.

EN ISO 3650