This standard specifies the terminology、 classification、 requirements、 test methods、 inspection rules、 marking、 packaging、 transportation、 and storage of dynamic road vehicle automatic weighing machines (hereinafter referred to as weighing machines). This standard is applicable to weighing the single axle load (or axle group load) of vehicles and the weighing device for the total weight of vehicles. This standard applies to weighing instruments that meet the following conditions: (1) installed in the weighing control area; One weighing connection is according to the manufacturer's regulations. This standard is not applicable to scales directly installed on ordinary road surfaces for the following scales; Determine the stressor for each axle load by multiplying the load of a single wheel by twice- A weighing system installed on the vehicle to measure the axle load of the vehicle. If the dynamic road vehicle automatic street device can work in a non automatic weighing (static weighing) mode during use、 it should also meet the relevant requirements of OIML.R76 (Non Automatic Weighing). 2 Normative reference documents: The clauses in the following documents become clauses of this standard after being referenced by the reference surface of this standard. For reference documents marked in issue 8、 all subsequent modification orders (excluding corrected content) Neither the revised version nor the revised version is applicable to this standard. However、 all parties who have reached agreements based on this standard are encouraged to study whether new versions of these documents can be used. For undated reference documents、 the new version of * applies to this standard. GB/T 191 Packaging、 Storage and Transportation Pictorial Symbols (GB/T 191-200.0 IS0 780:1997) GB/T 2423 1-2001 Environmental testing for electrical and electronic products - Part 2: Test methods - Test A: Low temperature (GB/T 2423 1 idt IEC 60068-2-1: 1990) GB/T 2423.2-2001 Environmental Testing for Electrical and Electronic Products - Part 2: Test Methods - Test B: High Temperature (idt IEC 60068-2-2; 1974) GB/T 2423.3-2006 Basic Environmental Testing Procedures for Electrical and Electronic Products - Part 2: Test Methods - Test Ca: Constant Damp Heat Test Method (IEC 60068-2-782001. IDT) GB/T 7551 Load Cell (GB/T 7551-1997 Reqv OIML R60: 1991) GB/T 13384 General Technical Conditions for Packaging of Mechanical and Electrical Products GB/T 14250 Terminology of Weighing Instruments GB/T 17626.2 Electrical Compatibility Testing and Measurement Techniques Electrostatic Discharge Immunity Test (GB/T 17626) 2-2006. IEC 61000-4-2:2001. IDT) GB/T17626.3 Electromagnetic Compatibility Testing and Measurement Techniques - Radio Frequency Electromagnetic Field Radiation Immunity Test (GB/T17626.3-2006) IEC 61000-4-3:2002、 IDT) GB/T17626.4 Electromagnetic Compatibility Testing and Measurement Techniques Electrical Fast Transient Burst Immunity Test (GB/T17626.4-1998) Idt IEC 61000-4-4; GB/T 17626.5 Electromagnetic Compatibility Testing and Measurement Techniques - Surge (Impact) Immunity Test (GB/T 17626.5) 5-1999、 idt1EC 61000-4-5:1995) GB/T 17626.6 Electromagnetic Compatibility Testing and Measurement Techniques - Immunity to Conducted Disturbances Induced by Radio Frequency Fields (GB/T 17626 6-1998. idt IEC 61000-4-6: 1996)

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

inspection and testing process:

1. Telephone communication and confirmation of requirements

Testing and testing characteristics:

1. The testing industry is fully covered、 meeting different testing needs

3. Engineers provide one-on-one services to make testing more accurate

4. Free initial testing、 with no testing fees charged

5. Self service order delivery for free on-site sampling