Standards

JJF 1101-2003 Replaced

JJF 1101-2003 Calibration Specification for the Equipment of the Environmental Testing for Temperature and Humidity

This specification applies to the calibration of the temperature and humidity measurement performance of environmental testing equipment (hereinafter referred to as environmental testing equipment).
Other similar equipment can also be calibrated in accordance with this specification.

Publish Date: 2003-05-12

JJF 1105-2003 Replaced

JJF 1105-2003 Calibration Specification for Contact(Stylus) Instruments of Surface Roughness Measurement by the Profile Method

This specification is applicable to the calibration of stylus-type surface roughness measuring instruments.

Publish Date: 2003-05-12

JJF 1097-2003 Replaced

JJF 1097-2003 Calibration Specification for Straight Edges

This specification is applicable to the calibration of cast iron, steel, and rock straightedges.

Publish Date: 2003-03-05

JJF 1091-2002 Replaced

JJF 1091-2002 Calibration Specification for Micrometers for Measuring Inside Dimension

This specification is applicable to the calibration of internal micrometers with a graduation value of 0.01mm and a measurement range of (5～150)mm, as well as aperture micrometers (three-jaw internal diameter micrometers) with a graduation value of 0.005mm and 0.01mm and a measurement range of (6～200)mm.

Publish Date: 2002-11-04

JJF 1093-2002 Replaced

JJF 1093-2002 Calibration Specification for Projectors

This standard applies to the calibration of upright and horizontal projectors used for measurement (excluding projectors for special purposes).

Publish Date: 2002-11-04

JJF 1088-2002 Replaced

JJF 1088-2002 Calibration Specification for Micrometers with Measuring Range from 500mm to 3000mm

This specification is applicable to the calibration of external diameter micrometers with a measuring range of (500~3,000) mm and a graduation value of 001 mm.

Publish Date: 2002-09-13

JJF 1083-2002 Replaced

JJF 1083-2002 Calibration Specification for Optical Clinometers

This specification is applicable to the calibration of optical inclinometers with a graduation value of 10″ and 1′. Optical inclinometers with other graduation values can also be calibrated in accordance with this specification.

Publish Date: 2002-05-24

JJF 1015-2002 Replaced

JJF 1015-2002 General Norm for Pattern Evaluation and Pattern Approval of Measuring Instruments

This standard applies to the type evaluation and type approval of measuring instruments, and can also be used as a reference during prototype testing.

Publish Date: 2002-05-16

JJF 1075-2001 Replaced

JJF 1075-2001 Calibration Specification of Clamp Ammeters

This specification is applicable to the calibration of clamp-type ammeters with a line voltage not exceeding 650 V and an operating frequency of 45 to 65 Hz.
This specification is also applicable to the calibration of current in multifunctional clamp meters.

Publish Date: 2001-12-04

JJF 1076-2001 Replaced

JJF 1076-2001 Calibration Specification of Humidity Sensors

This specification is applicable to the calibration of electrical parameter-type relative humidity meters, humidity sensors, and humidity transmitters.

Publish Date: 2001-11-30

JJF 1074-2001 Replaced

JJF 1074-2001 Measurement Tables for Density-Concentration of Alcohal

This specification is applicable to the lookup table calculation for measuring the density and concentration of alcohol solutions using alcohol meters and density bottles within the temperature range of -20 to +40 °C (ITS90).

Publish Date: 2001-06-05

JJF 1067-2000 Replaced

JJF 1067-2000 Calibration Specification for Sets of Voltage Ratio Standards at Power Frequency

This specification applies to the calibration of power frequency voltage ratios, primarily using precision inductive voltage dividers and center-potential shielded precision voltage transformers as standard instruments.
Example: Calibration operation of standard devices.

Publish Date: 2000-03-06