SN/T 0721-2012 in English
VALIDRules for the inspection of panel meter for export
- Issued on:2012-10-23
- Implemented on:2013-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
| Standard No: | SN/T 0721-2012 |
| Document status: | VALID |
| Title in English: | Rules for the inspection of panel meter for export |
| Title in Chinese: | 出口安装式板表检验规程 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2012-10-23 |
| Implemented on: | 2013-05-01 |
| Superseding: |
SN/T 0721-1997 Rules for the inspection of panel meter for export
|
| Professional Classification: | SN-Import&Export Inspection |
| Related Keywords: | core inspection requirements inspection type
export inspection cycle export commodity inspection law inspection gb/t inspection mode |
| Related Topics: | flow detection board
sn/t+3367-2012 sn/t3367-2012 inspection check table Instrument pre-installation inspection Packaging Inspection Form board table |
Introduction
Background of Standard Revision and Technological Evolution
As an upgraded version of the 1997 version of the regulations, this standard mainly responds to the requirements of WTO rule docking and the revision of the "Import and Export Commodity Inspection Law". The key adjustments at the technical level are:
- The inspection mode has been changed from traditional batch inspection to a regulatory combination of type test + random batch inspection
- A new 12-month inspection validity period system has been added
- Introduction of GB/T 2828.1-2003 counting sampling standard
Analysis of core inspection requirements
| Inspection type | Sampling basis | Testing standard | Judgment rule |
|---|---|---|---|
| Type test | National type test regulations | GB 6738+GB/T 7676.9 | All items qualified |
| Sampling inspection | GB/T 2828.1 S-4 level | Appearance/Performance/Safety | AQL grading determination |
Classification and disposal of non-conforming products
The standard divides non-conforming products into three categories:
- Class A: Involving safety items (such as insulation performance)
- Class B: Main performance indicators (such as accuracy grade)
- Class C: Minor appearance defects
Typical case: A company’s export batch passed the re-inspection because the dial scale error of the mounted panel meter exceeded the Class B limit. After technical rectification, the product passed the re-inspection.
Implementation suggestions for enterprises
- Establish a type test sample library to ensure the technical consistency of finalized products
- Use the S-4 sampling plan of GB/T 2828.1 for factory inspection
- Focus on the safety requirements clauses of GB 6738
- Use the 12-month validity period to reasonably plan the export inspection cycle
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